Synthesis of Iron Oxide Nanoparticles (Fe3O4)

[@WorldofNanotechnology]

Thank you all for reaching 1000 subscribers. You love and support to my channel "World of Nanotechnology" has been overwhelming. Your comments have helped me in improving the contents of this channel. More videos coming soon.

[@WorldofNanotechnology]

@ Akshay Jangam if you want to use ethylene glycol as the solvent. Just prepare the Fe2+ and F3+ solutions in 50% water and 50% ethylene glycol. After mixing the precursor solutions, heat the reaction mixture in a sealed autoclave at 180 C for 12 hours. You will get iron oxide nanoparticles.

[@akshayjangam020]

Thank you sir.

[@Newtonsplaygrouund]

is this method is of Sol-Gel method sir ?

[@WorldofNanotechnology]

@@Newtonsplaygrouund No this is not a sol-gel method. Here is a link for sol-gel synthesis of Fe3O4 www.sciencedirect.com/science/article/abs/pii/S0749603612002042

[@preeti-u9p]

@WorldofNanotechnology Sir I have one question.. why ethylene glycol used as solvent for nanoparticle synthesis ? And can I use this ethylene glycol as a solvent with metal salt in microbial mediated synthesis of nanoparticle ?

[@WorldofNanotechnology]

@@preeti-u9p ethylene glycol has high boiling point of about 160 degree. So materials which needs high temperature for synthesis uses ethylene glycol. This is called polyol method. Yes you can try this in microbial synthesis also.

[@dadfarali6846]

In magnetite fe3O4, the fe3+ concentration must be twice of fe2+ which you didn't do that. 2Fe3+ + Fe2+ + 8OH- - - - > Fe3O4 + 4 H2O

[@WorldofNanotechnology]

Please subscribe, like and share my videos

[@ntdkhoa67]

sir, thank you for the video i need your helps, i have 2 questions for you 1. how many degrees Celsius do u strir it? 2. do you store it in a nitrogen atmospheres? because Fe3O4 particles are easily oxidized in air condition. I hope your respone, many thanks, sir

[@ayabrea3762]

Is youre Fe2O3 have brown colore?i saw it in black colore

[@roastingwithaella7043]

Sir is it possible to formulate iron oxide nanoparticles using natural source. I mean can we extract iron from any natural source and then use it for iron oxide nanoparticles formulation

[@kanwalumer6046]

Please tell me hat sovent you used for Feso4 and Fecl3 solution?

[@WorldofNanotechnology]

Water is the solvent

[@MAGOSMAN]

Hello, sir I'm from Bangladesh. Currently I'm working on synthesis process with SnS2. Raw material are stannic chloride ,TAA,HCl,DI water. All these materials was stirred 1hour, no precipitate form . Then I cont. for autoclave process . Isn't there any chance to create nanoparticles? Should I do this after precipitate form?

[@tauseefahmad7474]

can you please tell me about synthesis of iron oxide and cobalt oxide nano composites

[@johnnewman3221]

sir that fluid itself, does it have magnetic force, does it respond to iron objects other than magnets

[@aparna6707]

What is the initial step to identify iron oxide nanoparticles

[@mrinabhk5917]

Sir for how long he have to dry the iron oxide ppt ?? And what should be the temperature?

[@WorldofNanotechnology]

Dry it for 8 hours at 100 degree Celsius

[@nobleelements6218]

How about the characterization? How to confirm the particles are under nano range?

[@WorldofNanotechnology]

You will have to get TEM done to get the actual particle size

[@nobleelements6218]

Ok thank you

[@nobleelements6218]

Can these be converted to hydrophobic / hydrophillic particles

[@WorldofNanotechnology]

Thank you all for 10000 views

[@sarahassan1824]

Hello, when i stop adding ammonia i mean that precipitation ended is it ph or what .so that yield be reporducible each time . 2nd question is : what the particle size of this prepared iron oxide nanoparticles And how to measure it . Thank you in advance sir

[@Doritosgrl15]

Hello! I am currently synthesizing MNPs in a similar way. I am having trouble getting my NPs hydrodynamic size down to 50 nm. I have a few questions: 1) what is the time span that I should add the base? I did 10 and 20 minutes time intervals and notices a 100 nm decrease in size but it's still at 300 nm 2) Do you dry your particles? If so, why? I have noticed this in many literatures and I have also noticed that after a long period in water, the particles seem to degregate. 3) do you use an acid to dissolve the dried particles? Or just water? Sorry for the ton of questions but with all the papers I have read, I can't get the specifics that I need to get quality NPs.

[@sarahassan1824]

Hello , can I ask you what you did i also need a smaller size .

[@user-hs3dg8jy3t]

stirring faster makes smaller particles

[@aparna6707]

Thank sir but uv visible depend upon turbid and transparent solution and iron oxide is insoluble in water and I read somewhere that use methanol so can we use methanol or it intrupted and change wavelength

[@WorldofNanotechnology]

You can use methanol, but use methanol as the reference solvent also in UV vis

[@navdeepsharma2102]

how to ta make calculation...

[@rishitajain5954]

Sir how did you dried these particles ....using vacuum oven or normal one and for how much time and at what degrees?

[@WorldofNanotechnology]

Dried in normal oven at 100 C

[@rishitajain5954]

@@WorldofNanotechnology for how many hours ...please tell. It is not mentioned in the paper.

[@WorldofNanotechnology]

@@rishitajain5954 12 hours

[@amaremelaku8614]

hello sir most articles magnetite should e synthesized under a nitrogen atmosphere to protect it from oxidation to maghematite?but In your labratory you did not work at nitrogen atmosphere why is so ???

[@WorldofNanotechnology]

I didn't find any problem without nitrogen also. Refer my paper www.sciencedirect.com/science/article/abs/pii/S0927775720313133?via%3Dihub

[@sarahassan1824]

What amounts should i use when using ferric chloride hexahydrate and ferrous sulphate heptahydrate Thank you so much

[@WorldofNanotechnology]

The molarity is given in the details of the video. Prepare the solution according to that.

[@sarahassan1824]

@@WorldofNanotechnology but in the video anhydrous forms were used but i will use ferric hexahydrate and ferrous sulphate heptahydrate Will i use the same molarity sir Also i have ammonia 33% can I use it directly?

[@WorldofNanotechnology]

@@sarahassan1824 you calculate the amount according to the molecular weight given on the bottle. Yes you can use NH4OH 33%.

[@reyhan200]

Sir, thank you for this video. We are synthesizing MNPs by using ferrous and ferric salts. We are not sure about the rpm value that we should use with the magnetic stirrer. Does it have a crucial effect on nanoparticle sizes?

[@WorldofNanotechnology]

RPM value can be kept at 400-500, but higher speed will be needed when it becomes viscous

[@shearknowledge9683]

Hi dear agar iron dopped zinc oxide bnani ho to us kalia kitna raw material lain

[@WorldofNanotechnology]

वो इस बात पर निर्भर करता है कि कितना डोपिंग करना है, 5 मोल% के लिए Fe/Zn ratio 1:20 लेना चाहिए

[@shearknowledge9683]

In urdu or english plz

[@shearknowledge9683]

If we can making or prepration iron dopped zinc oxide what should we do

[@WorldofNanotechnology]

@@shearknowledge9683 That depends on how much doping you have to do. If you want to do 5% doping then you should take Fe/Zn in the mole ratio of 1:20. I hope you can do mole calculation.

[@WorldofNanotechnology]

@@shearknowledge9683 I am sorry, I thought you are a Hindi speaker so I typed in Hindi.

[@mkscience8204]

Hello sir. I want to use ctab surfactant in the synthesis process. How many grams of surfactant should I use per specific mole of ferric ion????? please please answer, I should do it tomorrow!! verrry thanks sir

[@sahildharia2972]

Sir how to make/ buy nanofluids for experiment on internal combustion engine For our research paper work.

[@aparna6707]

Thank sir but in summer season lab temperature is about 45- 47c and is iron nanoparticle is light sensitive? So can I kept in refrigerator Temperature ( 4c)?

[@WorldofNanotechnology]

Nothing will happen to dry Fe3O4 nanoparticles, just ensure you have dried it in oven at 80-100 degrees.

[@prathameshjunghare587]

Hi sir, I am preparing ZnO nanoparticle, I am doing it step by step as per the article, but whenever I take the particle size by particle size analyzer it shows very big size. please help 🙏

[@WorldofNanotechnology]

Send me an email [e-mail]

[@aparna6707]

What is the condition and temperature of storing iron nanoparticles in glass vial

[@WorldofNanotechnology]

Normal room temperature and condition.

[@KabelTerminator]

Fe2O3 , you can made it by high current electrolysis of Iron in water also it's a N type semiconductor but its very hard to make ; )

[@mohamedramadan3779]

Hello sir , I will use zetasizer to measure particle size how I deal with the dried nanoparticles in whati should dissolve? Can I use citric acid to reduce particle size iam using nanoparticles in drug delivery

[@WorldofNanotechnology]

Sodium citrate is a known capping agent for nanoparticles. Search literature for other capping agents for Fe3O4.

[@noorzaman1608]

What is concertion of ammonium hydroxide I'd molar

[@WorldofNanotechnology]

You can use the 25% solution of ammonia which is commercially available. Or if you want exact concentration, then prepare 1M NH4OH solution.

[@arifraihan5745]

Hello sir, will I be able to use the NP for pollutant application? Is that good enough for effective reaction ?

[@suriyaprakash8663]

Sir,What is the name of this process?

[@WorldofNanotechnology]

This is coprecipitation method

[@suriyaprakash8663]

@@WorldofNanotechnology ok thanks sir

[@ksatish6258]

Can we use it as catalyst in heterocyclic compound ? If yes, then on which compound ?

[@Newtonsplaygrouund]

can you explain for sol gel method using ferric nitrate and ethylene glycol for preparing iron oxide magnetic nanoparticles sir

[@WorldofNanotechnology]

send me an email [e-mail]

[@thedarkknight3142]

Hello Sir, 1. How do you get to know the amount of materials you will need for the experiment? 2. Could you please make a video on the synthesis of nanoparticle via Hydrothermal method.

[@WorldofNanotechnology]

The amount of materials required is dependent on the chemical equation. The stoichiometric ratio between the reactants is needed to calculate the amount. The pH of the reaction decides how much NH4OH is to be added. I will make a video on standard hydrothermal process and upload.

[@farihaibtihaj6902]

Sir why u add oil with the dryed nanoparticles..and which oil ?

[@WorldofNanotechnology]

I mixed the Fe3O4 nanoparticles with oil to make ferrofluids. The best result is obtained with motor oil. If motor oil is not available you can mix even vegetable oil or silicone oil. If you dont want ferrofluid then no need to mix with oil.

[@farihaibtihaj6902]

@@WorldofNanotechnology thank you so much sir for clearing my point

[@angelalixo]

Hello. Could you pls tell me the volume of the chemicals used in the video(different from the one in the description box) as I’m using the 1M and 2M ones. Thank you. P.S. if you could pls reply ASAP I would really appreciate it. Thank you!

[@WorldofNanotechnology]

I used 50 ml each of the Fe3+ and Fe2+ solutions of the concentrations mentioned in description. Detailed procedure is given in this paper. www.sciencedirect.com/science/article/pii/S0927775720313133?via%3Dihub

[@angelalixo]

@@WorldofNanotechnology Thank you very much!

[@parvathivijayan4544]

sir can you please attach the paper of this experiment.? and also how you have filtered after the formation of nanoparticles.

[@WorldofNanotechnology]

You can use strong magnet to separate the Fe3O4 and then decant the water. Then wash with water and repeat the process until water is neutral. For reference simply search in google, there are many papers available.

[@parvathivijayan4544]

@@WorldofNanotechnology thank u sir

[@beyzademir105]

Hello, How long is the mixture in the magnetic stirrer and what is the temperature of the magnetic stirrer?

[@WorldofNanotechnology]

30 minutes at room temperature

[@beyzademir105]

@@WorldofNanotechnology thank you :)

[@prasaddeshpande4388]

Sir what is the volume of the solution used?

[@aparna6707]

How to dry iron oxide nanoparticles precipitate is in petriplate or eppendorf and using tray drier or oven to dry it.

[@WorldofNanotechnology]

Put it in glass petridish or watch glass and dry it in oven.

[@ShoaibAli-yy3lb]

@@WorldofNanotechnology sir what should be the temperature of oven for that..?/

[@WorldofNanotechnology]

@@ShoaibAli-yy3lb Dry at 80 degree Celsius

[@muhammadimran-mj7zw]

I think , these asprepared particles will not be nano in size because for nano size you need the lowest concentration and a caping or stablizing agent .

[@rockymendusa7867]

why this ferrofluid not have spike?

[@WorldofNanotechnology]

I didn't have stronger magnet

[@rockymendusa7867]

@@WorldofNanotechnology i have like yours too.even im put near strong magnet spike never come.i think the problem not magnet.

[@WorldofNanotechnology]

@@rockymendusa7867 you mix it in motor oil and use strong neodymium magnet

[@ahmedbasim2728]

hello sir i have some quastions please. 1. can we used NaOH instead ofNH4OH? and what its concentraion? 2. after we finsh the stirring how we can seprate the materials and how we can dy it to get powder iron oxides nanoparticles?

[@WorldofNanotechnology]

Yes you can use NaOH also, after synthesis you can use magnet to separate the precipitate

[@WorldofNanotechnology]

You can dry the sample in oven.

[@muhammadali-kf9tl]

​@@WorldofNanotechnology We want to use nano iron in the field of agriculture, how to prepare it

[@rosyjayaprakash5682]

I have synthesised many times I got it only fe2o3 bt not present in fe3o4 wat can I do sir plz anybody help me

[@kanwalumer6046]

Hello, can you please tell me how did you synthesized pure fe2o3? @@rosyjayaprakash5682

[@hutsunprabhus8510]

Hi sir.... Can I use feso4.7H2O instead of feso4 and fecl3.6H20 instead of fecl3... Also, should I add oil with it ?because I need magnetite nanoparticles in powdered form.... If so what oil should I add?... Pls reply sir

[@WorldofNanotechnology]

Yes you can use these chemicals, but calculate the amount of chemicals accordingly. No you don't have to add oil, that is when you want to make ferrofluid.

[@hutsunprabhus8510]

@@WorldofNanotechnology Thank you sir.... My doubt is, you have used 2 molar Feso4 and 1 molar fecl3.... Can I use 2 molar Feso4.7H20 and 1 molar fecl3.6H2O with same molar conc of NH4OH

[@WorldofNanotechnology]

@@hutsunprabhus8510 Yes, keep the molarity same

[@hutsunprabhus8510]

@@WorldofNanotechnology but accordingly the weight that i am going to take differs from you...am I right sir?

[@WorldofNanotechnology]

@@hutsunprabhus8510 yes weight depends on molecular weight, but keep the molarity same

[@aparna6707]

Sir what is the procedure of characterisation of iron oxide nanoparticles by uv visible spectroscopy that how to make solution for uv visible spectroscopy

[@WorldofNanotechnology]

Make a suspension of iron oxide in water and take the Uv-vis spectra

[@021_gousalyar_biotech4]

Sir can u share the research article of this experiment

[@khizarmushtaq8620]

I wanted to know if you can help me by telling me the materials/chemicals required to form nano-tungsten oxide dihydride using simple anodizing process.

[@WorldofNanotechnology]

Sorry I have not worked with this material. Please search the literature

[@thesarkive7746]

has any of this been implemented in current covid vaccines?

[@WorldofNanotechnology]

None of the vaccine contain iron oxide. Vaccine are made using mRNA technology.

[@SohailShaikh-rj4gl]

Sir how did you perform filtration? And also can you give some ideas about the characterisation of the above NP produced.

[@WorldofNanotechnology]

You can do filtration in two ways. If you have a very strong magnet you can separate the magnetic nanoparticles using magnet. Wash it several times and repeat the process. You can also use a filter paper or centrifuge to filter the nanoparticles. For characterization you can do XRD, magnetic susceptibility, and SEM.

[@mohamedramadan3779]

Hello sir , can i ask you about the size of this fe3o4 you prepared in this video And thank you for your useful video .

[@WorldofNanotechnology]

Between 50-100 nanometer

[@mohamedramadan3779]

@@WorldofNanotechnology thank you sir , can i use fecl2.4H2o and fecl3.6H2o instead and obtain the same size ? also what was the conc of ammonia Last thing my master colleague had the microparticles instead of nano with similar procedure i mean no nitrogen also , what could be wrong with her ? And sorry for many questions sir .

[@WorldofNanotechnology]

@@mohamedramadan3779 follow this paper. www.sciencedirect.com/science/article/abs/pii/S0927775720313133?via%3Dihub

[@WorldofNanotechnology]

@@mohamedramadan3779 yes you can use these chemicals as well

[@tabasultan1493]

sir im confused to take amount of chemical in gram to synthesis metal Oxide

[@WorldofNanotechnology]

50 mL of 0.2M Fe3+ salt solution (FeCl3) and 50 mL of 0.1M Fe2+ (FeSO4) was added to FeCl3 solution and stirred for 15 min. Then NH4OH was added dropwise until pH 11 and stirred further for 20 min.

[@LUMINARIASFOTON]

Hello will it be too much to ask you to write the amount in grams of the reactants? please

[@WorldofNanotechnology]

Take 24 mL of 0.1 Molar solution of ferric chloride (FeCl3.6H2O, 6.58g in 250ml water ), add 12 mL of 0.1 Molar solution of ferrous sulphate heptahydrate (FeSO4.7H2O, 6.95g in 250ml water), Add NH4OH solution dropwise with continuous stirring, until the solution turns black. Filter and wash the precipitate with distilled water.

[@abeerelsayed2907]

Thank you 😊

[@amitkumbhar2850]

How can I filtrate the nano particles ? Please explain the protocol precisely.....

[@WorldofNanotechnology]

You need to use centrifuge to filter nanoparticles. Centrifuge the solution and throw away the solvent, put water again, shake it and centrifuge again.

[@amitkumbhar2850]

Does it necessary to adjust ph at 7 before drying????

[@WorldofNanotechnology]

Depends on application, but it's better to wash it 3-4 times before use, there should not be any unreacted NH4OH left.

[@aparna6707]

Sir what is difference between synthesis of iron oxide nanoparticles and chemical method for synthesis of iron oxide nanoparticles is the property are different because green synthesis iron oxide to use for water cleaning ,dye removal not use for medical purposes. can you pls provide me link regarding this problem or some research paper

[@WorldofNanotechnology]

Both are same. There are many methods for synthesis of iron oxide nanoparticles. Also iron oxide exists in 3 forms. Most common is Fe3O4. Fe2O3 and FeO also exists. You will have to search research literature for specific applications.

[@mohammedal-omairi8941]

Sir can you please till me what is the temperature you have used will mixing the two solutions + the drying temperature and is it necessary to add oil ?

[@WorldofNanotechnology]

Synthesis has been done at room temperature, The filtered solid is dried at 100 degree C. No need to mix oil, if you have some other applications. I mixed oil for demonstration

[@mohammedal-omairi8941]

@@WorldofNanotechnology Thanks for the response, can you please till me what's the amount of distilled water you have used in preparing the two solution? In ml?

[@WorldofNanotechnology]

@@mohammedal-omairi8941 Combine 3ml of 2M FeSO4 solution and 12ml of 1M FeCl3 solution and fill a burette with 1.0 M ammonium hydroxide solution. Add NH4OH dropwise until you get dark black precipitate. Wash with distilled water several times.

[@tabrejshaikh4824]

Sir I want ferrofluid .. Have u any source for it ?? Help me sir

[@WorldofNanotechnology]

Check out in Amazon or you can make your self, it is best made when you mix Fe3O4 with motor oil,

[@aparna6707]

Sir what is the role of teflon sealed autoclave and in the place of teflon sealed autoclave what equipment use.

[@WorldofNanotechnology]

If you don't have Teflon lined autoclave, then also you can do reactions. It depends on temperature. If the synthesis temperature is 110-120, then you can use hard plastic bottles (polypropylene bottle), you can seal the cap with parafilm, or Teflon tape. But beyond that temperature you must use sealed autoclave.

[@phamtran5854]

Can I dry NP in room temperature?

[@WorldofNanotechnology]

Yes you can dry at room temperature, if the temperature is about 25 degree C.

[@amitkumbhar2850]

How can I load ethylene glycol on iron oxide nano particles ?????

[@WorldofNanotechnology]

You can only make a mixture of it with ethylene glycol, check literature for exact process

[@akankshabansal9509]

Good afternoon sir Your video very useful our research work, sir can you please attach the paper of this experiment. And sir please help, how to synthesised FeNPs using plant extract

[@aparna6707]

Thank sir but how much amount iron oxide and how much amount of water. I this method is different from estimation of iron by uv spectrum

[@WorldofNanotechnology]

You want to know at which wavelength iron oxide peak will come. The UV vis spectra is not dependant on amount. Just take small amount of sample in 5 ml water. Stir well, fill the cuvette and scan between 200-700 nm. Why don't you come for summer school in Amity Institute of Nanotechnology and learn everything. 😃

[@aparna6707]

Thank sir but iron oxide is insoluble in water and in the place water can I use methanol because I read somewhere that use methanol buffer solution .is methanol change the wavelength ?

[@WorldofNanotechnology]

@@aparna6707 you don't have to Solubilize it just suspend it in water, grind the solid before use.

[@parvathivijayan4544]

Sir can we take fecl2.4h2o instead of feso4??

[@WorldofNanotechnology]

Yes you can take. Any Fe2+ salt will work.

[@pratheeshcs9782]

Hi sir iron needile repel function chemicals name

[@phanhang4100]

hi sir, can you tell me how much NH4OH can be put in to form the nanoparticles ?

[@WorldofNanotechnology]

Add NH4OH until the solution turns black, even if you add a little excess it would not be a problem

[@phanhang4100]

@@WorldofNanotechnology thank you

[@noorzaman1608]

What is concertion of ammonium hydroxide what molar

[@lovelykhattak9121]

please make video on preparation mnf2 &cnts

[@aparna6707]

Sir what is property of iron oxide nanoparticles.Is iron oxide nanoparticles soluble in water what is the bioavailability of iron oxide nanoparticles

[@WorldofNanotechnology]

It is not soluble in water, but can be dispersed in water. I have not used it for bio application, you should do thorough literature review then only you can make appropriate nanoparticles. This is just a general method for Fe3O4 synthesis

[@deepaliaswal1341]

Sir can you please make a tutorial on WS2 synthesis using hydrothermal method

[@WorldofNanotechnology]

Sure I will do that, I will upload the video in 10 days

[@veeturivarun5201]

Sir... if I want particle size of less than 10nm... what modifications can be done..

[@WorldofNanotechnology]

You will have to use some capping agent like surfactants or some long chain amines

[@veeturivarun5201]

Thank you for your kind reply... Sir..but if the particles are capped or coated... Will it hamper the magnetic properties?

[@WorldofNanotechnology]

@@veeturivarun5201 it may affect, but I have not measured. If one magnetic particle is kept separated from another then it may affect over all magnetic property but individual particle property will remain same. Search for literature regarding this.

[@WorldofNanotechnology]

@@veeturivarun5201 Try Fe3O4 synthesis using urea, it will reduce the size.

[@veeturivarun5201]

Yes sir.. I will try... Thank you very much

[@mrinabhk5917]

Sir please tell us the amount you have taken

[@eainteaintpyaesonetun8235]

Sir, can I use FeCl2 instead of FeSO4???

[@WorldofNanotechnology]

Yes you can use FeCl2

[@eainteaintpyaesonetun8235]

Sir, where can I get the reference? I need to write the reference for my presentation

[@eainteaintpyaesonetun8235]

sir it is oxidized to Fe2O3 ??Are they stable?? Sorry for my many questions

[@WorldofNanotechnology]

@@eainteaintpyaesonetun8235 it is a stable oxide. This method will form Fe3O4 nanoparticles

[@WorldofNanotechnology]

@@eainteaintpyaesonetun8235 just search synthesis of Fe3O4 nanoparticles in google, you will get many papers

[@aparna6707]

Sir how to store iron oxide nanoparticles and how many days

[@WorldofNanotechnology]

You can store it in any glass vial. Once you filter and wash it, keep it for drying. Then you can store it in glass vial. Use it as and when needed.

[@quimico5949]

What i use to filter the nanoparticules?

[@WorldofNanotechnology]

You can centrifuge the nanoparticles and then collect the solids, then dry it

[@quimico5949]

@@WorldofNanotechnology thank you.

[@mdzafaralam7075]

Sir, the obtained filtrate should be dried at what Temperature?

[@vicky7798]

The obtained filtrate is dried at 100 degrees C.

[@mdzafaralam7075]

@@vicky7798 I followed the same procedure but my resultant dried product is brownish in colour. Is it okay or it should have been black in colour ?

[@vicky7798]

@@mdzafaralam7075 It is correct. Just check if the product is magnetic using a magnet.

[@mdzafaralam7075]

@@vicky7798 thank you. By the way I have to make a PowerPoint presentation, the above procedure can be found in Journals ? If so please give me a link to the journal

[@vicky7798]

@@mdzafaralam7075 It will be surely available in journals. This link might be of help bit.ly/2U1icxZ

[@aparna6707]

Sir the method you applied for synthesis of iron oxide nanoparticles what is the particle size of nanoparticles and is this toxic in nature

[@gordongiobanni7543]

Mmm i dont know does heavy metal toxicity ring a bell

[@krishnapatel0711]

sir please provide the reasearch paper of this experiment.

[@mosesaborisade8680]

Please can you upload how to synthsise nanoscale zerovalent iron?

[@WorldofNanotechnology]

I will make a video on zerovalent iron and upload soon

[@mostafarahimi8088]

can u give information about Reaction efficiency and percentage؟

[@WorldofNanotechnology]

Yield in this reaction is more than 90%

[@SharukhKhan-bf7dq]

Sir I need chemical reaction of this preparation.. please reply..

[@WorldofNanotechnology]

2FeCl3 + FeCl2 + 8NH3 + 4H2O ------> Fe3O4 + 8NH4Cl

[@SharukhKhan-bf7dq]

Sir I use FeSO4 for Fe2+ source..

[@SharukhKhan-bf7dq]

Ferrous sulphate heptahydrate

[@WorldofNanotechnology]

@@SharukhKhan-bf7dq yeah replace FeCl2 in the equation with FeSO4

[@SharukhKhan-bf7dq]

Thanks you sir..

[@weibinding4487]

Fecl4 is wrong ?

[@WorldofNanotechnology]

Yes, you have to use FeCl3

[@campuskk3889]

Hello, please Sir, can you upload a video about the preparation of Zero-Valent Iron Nanoparticles ?

[@WorldofNanotechnology]

I will make the video next week and then upload

[@FadyMamdouh-qi8qy]

طوب الطوب

[@mangaftv5187]

hi sir. Do you need to use the temperature when stirring?

[@WorldofNanotechnology]

No need of heating. Just do a constant stirring. Also it is important that addition of NH4OH should be slow.

[@anitharathinam9302]

Sir can you pls attach research article here for reference. pls sir.

[@WorldofNanotechnology]

Attaching a reference is not available in KZbin

[@WorldofNanotechnology]

Send me an email, I will send you the paper. [e-mail]

[@anitharathinam9302]

Ok sir thank you sir. Kindly reply me at mail. I was send.

[@siddhikhomane4121]

Sir... Can you Plzz send Reaserch paper or doi no. For reference

[@justindebrow690]

Do you know of a way to get the Magnetite nanoparticles to disperse in a PDMS film? I'm looking at surfactants but not a lot of ways to decrease their agglomeration.

[@WorldofNanotechnology]

You can try ultrasonication

[@khoramdin9517]

Thanks ❤

[@ayahmoustafa2966]

thank you but i need the reference please

[@abdulrehman-cm8bv]

sir iron oxides k different recepies btana

[@ahmedheraa4091]

المشكلة الاجهزة كلهن ماموجودة بمختبراتنا

[@sharmaranjit1]

You can do the mixing using a spoon also. You dont have to use the sophisticated instruments.

[@aparna6707]

Sir upload the video for preparation of ferric pyrophosphate nanoparticles as soon as possible.

[@WorldofNanotechnology]

I have uploaded the requested synthesis

[@dhruvamukhopadhyay1931]

Please share the paper.

[@beautyofnature9604]

You should have told the people that to maintain temperature at 80°.😊

[@WorldofNanotechnology]

Well, I did the synthesis at room temperature. There is no need to heat the mixture.

[@mariamak.5138]

THANK YOU VERY MUCH SIR

[@WorldofNanotechnology]

Thanks for watching the video

[@charlieangkor8649]

any evidence for the claim that its nanoparticles ? could be microparticles as well

[@WorldofNanotechnology]

This is just a tutorial video, however I have made nanoparticles of Fe3O4 for my research by carefully controlling the speed of addition and temperature

[@aparna6707]

Sir show the synthesis of ferric pyrophosphate nanoparticles

[@WorldofNanotechnology]

OK, I will upload that video soon

[@vikramanilkadiveti9878]

Sir fe2o3 tell me

[@WorldofNanotechnology]

Do you want a video on Fe2O3 synthesis or you need paper on this.

[@vikramanilkadiveti9878]

@@WorldofNanotechnology i want fe2o3 synthesis

[@WorldofNanotechnology]

Ok, next week I will make the video

[@vikramanilkadiveti9878]

@@WorldofNanotechnology tq sir