Sr I have tried your method and it worked well, but I used 4.7g of FeCl3.6H2O and 4.0 of Fe2SO4.7H2O then i titrated with 6M NH4OH drop wise. then it takes 40 min to obtain FE3O4 naniparticles. Thank you
hello sir, Thank you for this video, Can you please tell me how you dry magnetic nanoparticles?..... Can we dry these nanoparticles at 60 degree Celcius?
Yes u can but magnetic particles in the hydrogel structure may not be homogeneous distribution. U should try impregnation of Fe3/Fe2 ions method. There is an example work in my channel.
Hocam merhabalar, Fe304'ü Türkiye'de bulabiliyor muyuz hazır olarak yoksa labda ayrıca hazırlamamız gerkeiyor mu? lisans öğrencisiyim bioadsorbentleri magnetize etmek için kullanmam gerekecek. İyi çalışmalar dilerim.
merhabalar, fecl3ve fe2(so4).7h20 nun net rakamlarını yazı olarak yazabilirmisiniz. ilk etapta bunları suda çözdükten sonra nh4oh ı ne kadarlık seyreltik damla damla ekliyorunuz ben tam olarak anlayamadım video da. teşekkürler
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
Hello, I have tried synthesizing magnetite using the method you have shown in this video. However, I did not add the ammonia hydroxide drop wise, I immediately added it. Upon vigorous stirring, the ppt became black and I left the solution to settle. I then tested it with a magnet and they were magnetite ppt. My question: Since I added the NH4OH immediately, is there any chance that the ppt are pre-mature? I want to use the ppt as pigment and for some reason I am unable to get the desired quality.
My guess is that adding all the ammonium hydroxide at once will produce larger spongey masses instead of discrete particles. Usually a surfactant such as sodium dodecyl sulfate (dishwashing soap may work) is added as well to reduce particle size as well.
Hello brother I have chosen fecl3.6h20 and Fecl2.4H2O and Nh3 using 1:2 ratio and dissolved in 60 ml distilled water but I got xrd values for Fe2O3 not for fe3o4 nanoparticles, wat can I do brother plz tell me any suggestion. Thank you
How much (volume) Ammonium Hydroxide solution was used? What was the molarity of Ammonium hydroxide solution? When did you stop adding Ammonium Hydroxide? What if we use green leaf extract instead of water?
@@polymerscope6881 Thanks. I prepared MNPs using plants extract. After drying, the particles leave brown marks on paper. is it alright? Can the MNPs get rusty?
Hi... thanks for the video... i had tried the same method. On adding NaOH solution, at one point the reaction mixture started to get very thick indicating the formation of magnetite nanoparticles. Can we stop adding the reducing agent then? or do we have to continue adding the same?I used 0.2M FeCl2.6H20, 0.4 M FeCl3.6H20 and 3M NAOH solution...
FeSO4 and FeCl3 (Fe2+ and Fe3+ mole ratio 1/2) used for Fe3O4 supply. To reduction reaction, NH3 aqueous solution used bur u can use another base solution such as NaOH aqueous solution.
Hi sir.... I have tried this method. After addition of NAOH and continuous stirring. I moved up a magnet over the sides the beaker ,the particles haven't risen up.... I am not sure about the amount and concentration of added NAOH...What might happened? can you pls tell sir...
The base concentration is very important. If it does not move, the reaction has not occurred. 8 times the mole of Fe ion is required. Fe3+ and Fe2+ use 0.04 M and 0.02 M respectively. U can try again by using NaOH dropwise until pH 10.
@@polymerscope6881 sir can you pls tell the exact concentration and volume of NAOH that should be added to the concentration of the precursor that you have mentioned.
Sr I have tried your method and it worked well, but I used 4.7g of FeCl3.6H2O and 4.0 of Fe2SO4.7H2O then i titrated with 6M NH4OH drop wise. then it takes 40 min to obtain FE3O4 naniparticles. Thank you
How did you separate the particles? I've made too but now how will I separate the particles from the water?
@@mehnazparveen5277 you can do centrifugation or filtration
@@mehnazparveen5277filter?
Please have you an article about this?
Can you please tell me how long is the reaction time
Excuse me, u keep stirring the iron solution until it reach what pH?
Can we use sodium hydroxide instead of ammonium hydroxide?
Yes
i am making IONP but a straight line is showing up in the UV vis spectrophotometer. no sharp making. can u please tell me why?. please reply
I uses electrolysis with 70 degrees centigrade caustic soda solution with iron as +electrode
Good one thank you 👍
ada ref pak?
Sir can you let us know the quantity of chemicals u used ?
This method doesn’t need nittogen bubling?
hello sir, Thank you for this video, Can you please tell me how you dry magnetic nanoparticles?..... Can we dry these nanoparticles at 60 degree Celcius?
yes, u can in oven
What size nanoparticles would one get from this method?
For producing magnetic hydrogel can we directly add hydrogel to this nanoparticle solution ?
Yes u can but magnetic particles in the hydrogel structure may not be homogeneous distribution. U should try impregnation of Fe3/Fe2 ions method. There is an example work in my channel.
Hocam merhabalar, Fe304'ü Türkiye'de bulabiliyor muyuz hazır olarak yoksa labda ayrıca hazırlamamız gerkeiyor mu? lisans öğrencisiyim bioadsorbentleri magnetize etmek için kullanmam gerekecek. İyi çalışmalar dilerim.
Tabi ticari olarak bulabilirsin.
merhabalar, fecl3ve fe2(so4).7h20 nun net rakamlarını yazı olarak yazabilirmisiniz. ilk etapta bunları suda çözdükten sonra nh4oh ı ne kadarlık seyreltik damla damla ekliyorunuz ben tam olarak anlayamadım video da. teşekkürler
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
Its about 70 C, Yes u need nitrogen atmosphere
Can we perform this same experiment by reducing the weight of the reagents proportionally???
Yes, you can.
hi can you list what instrument and apparatus that you used. Thank you
I will upload a detailed video about it soon.
Can u please share the article or give me some suggestion how to Agno3 incorporate into hydrogel??
U can impregnation like this;
doi.org/10.1080/00914037.2017.1291513
what are the reaction parameters, at what temperature have you used?
0.02 M FeSO4 and 0.04 M FeCl3 in 400 ml water at 80 C. U can add the 0.1 M NH4OH solution on this solution by dropwise to pH10 around.
@@polymerscope6881 Reference or doi please?
Super! Thank you very much!
Thanks.
Nice Video
Hello, I have tried synthesizing magnetite using the method you have shown in this video. However, I did not add the ammonia hydroxide drop wise, I immediately added it. Upon vigorous stirring, the ppt became black and I left the solution to settle. I then tested it with a magnet and they were magnetite ppt.
My question: Since I added the NH4OH immediately, is there any chance that the ppt are pre-mature? I want to use the ppt as pigment and for some reason I am unable to get the desired quality.
My guess is that adding all the ammonium hydroxide at once will produce larger spongey masses instead of discrete particles. Usually a surfactant such as sodium dodecyl sulfate (dishwashing soap may work) is added as well to reduce particle size as well.
Try using some kind of surfactant in your solution, this tends to make smaller more uniform crystals instead of amorphous growths
I think you create a lot of ferric and ferrous hydroxide as a side reaction if you add ammonium hydroxide all at once instead of adding it drop wise.
I which solvent you make the solution?@H2O ?
ugh *Clutches chest* the fact that you used anhydrous Iron(III) chloride to make an aqueous solution irks my soul.
Bro ! I only have this.
LOL I feel your pain ... and I'm not even a chemist. ;)
did ammonium hydroxide can be replace by only naoh?
Yes
Excuse me, if we use NaOH.
How many concentration do we need?
U can use same concentration. I will upload a detailed video about it soon.
Can you please tell me about procedure in written form or any article?
U can find many studies in the literature. I will upload a detailed video about it soon.
Hello brother I have chosen fecl3.6h20 and Fecl2.4H2O and Nh3 using 1:2 ratio and dissolved in 60 ml distilled water but I got xrd values for Fe2O3 not for fe3o4 nanoparticles, wat can I do brother plz tell me any suggestion. Thank you
I will upload a detailed video about it soon.
please sir make a video about making alfa Feooh.
How much (volume) Ammonium Hydroxide solution was used? What was the molarity of Ammonium hydroxide solution? When did you stop adding Ammonium Hydroxide? What if we use green leaf extract instead of water?
8 times the mole of Fe ion is required. U can use 10 times. The green leaf extract is used for green synthesis. But the reaction efficiency decreases.
Kindly tell the ratio of ammonium hydroxide with distilled water, thanks
We need 8 times as many moles of OH- ions as the total Fe (Fe2+ and Fe 3+) ions. So, we need to add about 10 times.
sorry; I didn't understand,how much fe(II) and fe(III)?
What was the molarity of FeCl3 and FeSo4 solutions?
0.04 and 0.02 respectively
@@polymerscope6881 Thanks. I prepared MNPs using plants extract. After drying, the particles leave brown marks on paper. is it alright? Can the MNPs get rusty?
@@saurabhshukla6048 Yes, it is probably MNP. If u can use the EDX, XRD analysis tehniques, u can chatarcterized it.
What is the size should be?
Its about 100 nm.
hello i want know it is one step method or two step method. thank you
İt is one step metod
Hi... thanks for the video... i had tried the same method. On adding NaOH solution, at one point the reaction mixture started to get very thick indicating the formation of magnetite nanoparticles. Can we stop adding the reducing agent then? or do we have to continue adding the same?I used 0.2M FeCl2.6H20, 0.4 M FeCl3.6H20 and 3M NAOH solution...
Please, did u add the NAOH until th pH becomes equal to 10 or just whn u observe the thick solution?
I will upload a detailed video about it soon.
Have u not used heat of 80°during the precipitation reaction
No, it only room temperature but if u used high temperature, u can obtain more smaller nanoparticles.
Hi, Is Nitrogen atmosphere necessary here?
can this be used to remove phosphates from water
It can be used for purpose but their adsorption capacity is low. So, u can synthesis polymer-Fe3O4 nano particles for obtain good adsorban.
@@polymerscope6881 you lost me what's that lol
@@polymerscope6881I'm using sargassum as adsorbent ¿do you think it might work?
Is not necessary to perform this experiment under nitrogen?
Yes, it can be more correct.
Which method use sir
It’s coprecipitation method
how much ammonia consumed..
9 times as mole as total Fe ions
Hello brother which compound r u using in tis synthesis
FeSO4 and FeCl3 (Fe2+ and Fe3+ mole ratio 1/2) used for Fe3O4 supply. To reduction reaction, NH3 aqueous solution used bur u can use another base solution such as NaOH aqueous solution.
Hi sir....
I have tried this method. After addition of NAOH and continuous stirring. I moved up a magnet over the sides the beaker ,the particles haven't risen up.... I am not sure about the amount and concentration of added NAOH...What might happened? can you pls tell sir...
Also, what happen if I add excess NAOH? Pls reply sir ....
The base concentration is very important. If it does not move, the reaction has not occurred. 8 times the mole of Fe ion is required. Fe3+ and Fe2+ use 0.04 M and 0.02 M respectively. U can try again by using NaOH dropwise until pH 10.
@@polymerscope6881 sir can you pls tell the exact concentration and volume of NAOH that should be added to the concentration of the precursor that you have mentioned.
@@polymerscope6881 Also can you pls tell the volume of FeSO4.7H2O(0.04M) and Fecl3.6H2O(0.02M) . I am not sure about it .pls reply sir
@@hutsunprabhus8510
Did you get an answer ?
Bec i will prepare with same chemicals
Please check the amount of the agent. the FeCl3 should not be 9.4g to keep the Fe3+/Fe2+ =2 to form Fe3O4?
Got it. sorry about this!
sir please send the research paper of this experiment......
I have not publish this experiment yet but u can find many studies about that in the literature
how to make this Fe3O4 have spike?
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