I used to deposite drop of active material with the help of syringe. Weight is calculated while making solution of active material. For instance if you have added 2mg active material in 10mL of solvent then you simply find it through unity method. How mL/microlitre were deposited, you can calculate it by simple basic mathematics
@mohamedyali-y9c yup, a well polished surface of glassy carbon is more hydrophilic, and the water drop containing active material solution is more attract toward glassy carbon than side/corner plastic and 2ndly I used to add small quantity of nafion for my active material as binder. It's more practical approach than theoretical. I guess, you should try. You yourself, come up.with ideas and solutions
Distortion depends upon the size of inserted atom/particle and the vacant space in the structure. It's normal structure get stretched upon large atom and compressed upon smaller atom insertion.
Thank you sir for explaining XPS in such a simple way. I didn't find lecture 5 of xps. and please share the PPt of xps if possible. thanks a lot in advance
I can not understand your question, I mean if we con't put and the how much time we need to put residual in oven? besides, I think the experimetal parameters are need to determines through some solid reference. I suggest please do consult some proper reference where you can find each and every detail otherwise if someone suggest you randomly through his/her knowledge it would not be helpful. I hope it makes sense! :)
It was not a book, instead a research paper. I am very bad managing data, this paper was downloaded. Video recorded and now I really don't have an idea where it is. But I guess if you search you can find it easily.
I have centrifuged my nanoparticle solution, but only a small amount of nanoparticles was deposited in the centrifuge tubes, making it difficult to dry. What is the best method to effectively dry this small quantity of nanoparticles?
There could be multiple ways you tackle such problem, when product have small quantity. Easiest is try to prepare large quantity of nanoparticle by applying some mathematical multiple to find that. 2nd is to use Only "one tube" of centrifuge for multiple times to centrifuge the whole solution so that all the product get collected in one tube instead of multiple tube of centrifuge. To balance the tube so that rotation remain uniform, fill others tube with water only. 3rd method might be use acetone to collect those particle from tube and dry it in China dish. I hope it helps?
Sir , how i can dry powdered silver nanoparticles store. Some resarch articles i founded sealed environmental are so prefer. So how i can made sealed environmental it anaerobic condition. Please give comments
Storing synthesized silver nanoparticles properly is crucial to maintaining their stability and preventing degradation or aggregation. Here are some general guidelines for storing silver nanoparticles: Concentration and Storage Medium: Concentration: Ensure that the concentration of nanoparticles is appropriate for your needs. High concentrations might lead to aggregation over time. Storage Medium: Typically, silver nanoparticles are stored in a suitable solvent or dispersion medium that can help prevent aggregation. Commonly used media include distilled water, ethanol, or buffer solutions. Make sure the medium is compatible with the nanoparticles and their intended use. Container: Material: Store nanoparticles in containers made of materials that do not react with silver, such as glass or certain plastics (e.g., polyethylene or polypropylene). Avoid using metal containers that could interact with the nanoparticles. Sealing: Use tightly sealed containers to prevent exposure to air and moisture, which could affect the stability of the nanoparticles. Temperature: Storage Temperature: Store the nanoparticles at a cool temperature, typically in a refrigerator (4°C) or a freezer (-20°C or lower), depending on the specific requirements of your nanoparticles. Lower temperatures can help slow down any potential aggregation or degradation processes. Light Exposure: Protection from Light: Silver nanoparticles can be sensitive to light, which might cause changes in their properties. Store them in dark or opaque containers to minimize light exposure.
sir, suppose we get the silver nanoparticles in the range of the expected wavelength but the absorbance is less; around 0.5 and 0.6. What should we do in that case?
To increase the absorbance of nanoparticles, you can try several approaches: Increase the Concentration: Higher nanoparticle concentration in the solution generally leads to higher absorbance. Make sure to adjust the concentration to within an optimal range for your system. Optimize Nanoparticle Size: The absorbance of nanoparticles is highly dependent on their size due to the plasmon resonance effect. Smaller or larger nanoparticles may have different absorbance properties, so adjusting the size could enhance the absorbance. Modify the Shape: Nanoparticles come in various shapes, such as spheres, rods, or cubes. Each shape has different optical properties. For instance, elongated shapes can exhibit stronger absorbance due to enhanced plasmonic effects. Surface Modification: Coating nanoparticles with different materials or functionalizing their surfaces can change their interaction with light and enhance absorbance.
Sir silver nanoparticles synthesis hone ke baad aqueous form main aajata he usko powder form main kaise convert kare ..Simplest process kya rahega iske liye..ek practical demo video bana dijiyega sir❤
You need to have centrifuge it and then a process of filtration and drying exists. It is a common process. Almost every kind of hydrothermal process has these steps.
Sure, what kind of information you can provide? Do you have some experimental videos of this method? Or you can make them step wise? Any ki d of information and dat would be helpful for students, and I would love if you share your ideas and experiences.
@@Nano_609 i have experimental over 9 year... the one thing is plasma is key. but there are other element you can use to gorw au.. but i want to see what you been working on.. do you have email?
Sir, for the formulation of iron oxide nanoparticle we basically use iron precursors salt. Is it possible to extract iron from other source then use in fomulation of iron oxide nanoparticles
@@Nano_609 sir sorry for extension, are you pretty sure that we will not extract iron from other source like vegetable source and then use as a replacement of iron salt presursors.
@roastingwithaella7043 It depends, usually we used metal salts because it is easy to reduce them with some green method like using plant extract, bacteria or other micro organism. However, if have some iron source like vegetables etc, that particular iron can't be extracted using the aforementioned method. If it exists and can be extracted please share with me. It would be great addition to my knowledge. Thank you
It's an interesting question, but for the reduction of Ag nanoparticles, no chemical species is used. 2ndly, AgNO3 itself doesn't produce any environmentally hazardous product.
Sir please make practical video on green synthesis of nanoparticles.. because in RU-vid there is no video of actual making nanoparticles with theory...pls make it
Sir jab hum iron oxide nanoparticles synthesis kerty by using green synthesis approach ya koi bi copper, ky bi synthesize krty tab hum metal salts hi ku use kerty hum natural source like ksi bi chez sa iron extract ker ky us sa nanoparticle ku nahi bna sakty. Agar bna sakty han to kia difference ay ga kindly ya bata den
Basically, salt disassociate themselves in respective metals ions, and the green extract act as a reducing agent to reduce those metal ions into stable metals atoms. However, in any other source, metal doesn't exist as ions. I hope you understand the logic.
Yes sir but ap na ak video m physical and chemical methods sa nanoparticle ka discuss kiya tha to ap na kha tha chemicals environment damaging hoty hn or mny bi parha tha ka in ky residues reh jaty han jo health issue generate krty. Rightnow mera ya question ha ya salts bi to chemical source hi ha to namoparticles bn jyn agar in sa to ya health issue ni kern gy
Uss case me byproduct ki list long ha and they are not good for enviornment. In this method, synthesis metal nanoparticles are the only desired product and no other byproduct is produced. Secondly, others methods have long list of precursor material however in this case only metallic salt are utilized and they are safe just as table salt is metallic salt and is safe to use.
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اسلام و علیکم سر۔۔ سر ایکس آر ڈی کے گراف پر ویوڈیو بنا دے کہ اس سے کیا کیا انفارمیشن ملتی ہے۔۔۔ کیونکہ میٹریل سائنس کو جب سٹڈی کرتے ہیں تو ہر ریسرچ پیپر میں ایکس آر ڈی کا گراف ہوتا ہے۔۔ اس کو پڑھنا کیسے ہے۔۔ کرسٹل سٹرکچر کا پتہ کیسے چلائے گے۔۔۔ اور بھی جو جو پتہ چلتا ہے۔۔۔ اس پہ ایک ویوڈیو بنا دے۔۔۔شکریہ
I have uploaded videos on XRD, please visit XRD play list in my RU-vid channel. When you go through those lecture, u would be able to understand each and everything in graph
