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
Details are already given in the description. Take 1 wt% PVA (Polyvinyl alcohol) in 100 mL distilled water, add 0.43 g of Zinc acetate and 0.004 g MnSO4. After they get solubilized add Sodium sulphide solution dropwise (0.15 g in 10 mL water). Stir vigorously until you get precipitate. filter the precipitate and observe under UV light.
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 🙏
Hello! I'd like to ask if the encapsulation method using sodium alginate will interfere with the adsorption capacity of the adsorbent immobilized inside the alginate?
Sodium alginate gel is highly porous. In fact the adsorbent property increase after you immobilize it in sodium alginate. You must do the experiment and yourself see.
@@WorldofNanotechnology thank you so much! im planning to encapsulate biochar inside alginate beads to be tested for adsorption of a highly hydrophobic contaminant in aqueous environment. Is a 2% alginate - 2% calcium chloride - 3% biochar okay sir? (percentages are g/g solution). and how long is the usual hardening time in cacl2 before i can decant the beads? thank you!
Hlo sir i am also doing dessirtation on alginate please tell me the procedure of extraction of alginate from sargassum seaweed i have read many papers but i haven't found any correct procedure please tell me if you know it
Here we demonstrate the synthesis of Mn doped ZnS for nanophosphor application. Take 1 wt% PVA (Polyvinyl alcohol) in 100 mL distilled water, add 0.43 g of Zinc acetate and 0.004 g MnSO4. After they get solubilized add Sodium sulphide solution dropwise (0.15 g in 10 mL water). Stir vigorously until you get precipitate. filter the precipitate and observe under UV light.
@@WorldofNanotechnology can we take 1gram of zinc acetate or 2 gram of magnesium sulphate etc , I mean why you take 0.43 gram and 0.004;gram of magnesium sulphate, please tell us explanation and calculation
@@WorldofNanotechnology I am still conducting my proposal now, but I am trying to synthesize sodium alginate with Cellulose and with a mixture of powdered rice husk so yeah I'll let you know if it works..
Hello Sir, I am Sanchit Khairnar Student of Chemical Engineering at Pune University as a part of my final year project I wanted to make chitosan cellulose composite beads and this video was very helpful to me I need some help with my process I have chitosan and microcrystalline cellulose now the process of making beads is same where we mix chitosan and sodium alginate and microcrystalline cellulose make a solution of this and stir it for 30 mins and then drop this solution in CaCl and decant after beads formation I need your help with detailing this process where I want to know how many grams of chitosan to use how many grams of cellulose and sodium alginate and should I just put the powder of in DM water or I should prepare separate solutions how go I exactly do this and make chitosan cellulose composite beads?
Aoa To make sodium alginate beads I added 4g alginate powder in 100ml water then added 5g adsorbent ( activated carbon) and drop by drop poured it in CaCl2 solution that was made by adding 3g of CaCl2 in 100ml water but my beads are not forming in fact they get dissolved 😣...
I used the method given in my video details and the beads came out perfect. Your adsorbent quantity is too much. Take 1g of sodium alginate in 100 ml water and add 0.25 g of adsorbent and mix well. Prepare a solution of CaCl2 in water (1 g CaCl2 in 100 ml water). Using a dropper add the sodium alginate gel dropwise in the CaCl2 solution. Filter the beads and use them as you want.
@@WorldofNanotechnologytoday I made sodium alginate beads with 2g in 40ml water and CaCl2 2% solution and beads were made but when I added 1g of adsorbent ( activated carbon) then beads were not formed why is it so ?? Kindly let me know
@@hibafatima4673 You are adding too much of adsorbent. Add about 10 wt% of adsorbent. So, if you are taking 2 gm of sodium alginate, dissolve that in 200 ml of water and add 0.2 g of adsorbent.
Sodium alginate powder when mixed with water forms a gel. Then you add the gel using dropper to a calcium chloride solution. CaCl2 hardens the gel and stable beads are formed. If you want to load a drug, add the required quantity of drug in sodium alginate solution and mix well. Then you can make the bead of drug loaded soldium alginate.
Video is not clear but one thing I want to ask. for spray painting for, one use Malamine for shining and Hydrophobic but Malamine is Costly. whether it can give shining?
Try doping with Ag, In, Cu and Se. With Ag you get blue green fluorescence, with In you get a red or violet florescence dependant on size, with Cu you get green and swapping some sulfuur out with selenium will lengthen the emission peak, for example your orange glowing mn doped ZnS will glow in the near IR at roughly 720nm ❤
Do you think its possible to add natural biocoagulant powders such as moringa oleifera and oystershell powder in the hydrogel to treat wastewater? And what ratio do you think is the best to use.
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?
