What is the colour of SnWO4 nanopowder?

More Udayabhanu C Gowda's questions See All

On what basis the semiconductors were named as direct and indirect bandgap semiconductors?

On what basis the semiconductors were named as direct and indirect bandgap semiconductors? What are the properties makes the materials into direct and indirect bandgap semiconductors. Please...

01 January 1970 8,661 10 View

What is the role of green surfactants (Plant extracts) for the synthesis of Metal oxide nanoparticles?

I was used some plant extracts for the synthesis of metal oxides under the ultrasound irradiation. I got the uniform sized nano particles.

01 January 1970 4,125 4 View

Is the Quartz tube allows Visible light radiations?

Is the Quartz tube allows Visible light radiations? or UV radiations? or both radiations? Please let me know.

01 January 1970 4,420 5 View

Why the crystallinity of metal oxides increases on calcination?

material chemists

01 January 1970 9,984 3 View

How to confirm the dopant? weather it is in crystal lattices or on the surface by XPS?

Dear sir/Madam, I have synthesized the Cu doped TiO2. i got the XPS results. from that the Cu confirmed as Cu (II) state. My question is weather it is in crystal lattices of TiO2 or on the surface...

01 January 1970 4,171 6 View

What is the effect, If we use Mn3O4 and Mn2O3 composite material for Li ion battery application?

I have the synthesized manganese oxide material, But the XRD matched with Mn3O4 and Mn2O3. What about the Li ion battery performance, Weather it is good or bad?

01 January 1970 1,369 3 View

Is TiO2 belongs to direct or indirect bandgap semiconductor?

Weather the TiO2 belongs to direct or indirect band-gap semiconductor?. One of the reviewer mentioned that TiO2 is a Indirect band-gap semiconductor. Please let me know.

01 January 1970 5,369 3 View

What is the status of bread making and more bakery foods with the use of insect flour/powder?

Insects have been consumed by human diet since prehistoric times. At present, the idea of looking at insects as food has been getting traction worldwide, also in response to increasing food...

03 March 2021 6,223 5 View

What is Nano technology with coronavirus helpe the human..and is it nano mterals removal of covid19?

I anwar by adsorption or reaction ..but it is either more method...

02 March 2021 4,811 2 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

Zno nano particles colour changed from white to grey in process of calcination any suggestions?

In the formation of Zno nano particles process, after drying at 120 degree C, my zno nano particles are completely white but when i calcine it for 450 degree C it converts into grey colour. i...

26 February 2021 2,435 4 View

What is the best solvent to remove PDMS from nano particles?

I want to remove PDMS oligomers from the surface of nanolayers. I have just read a very helpful paper about the compatibility of PDMS with different solvents( Solvent Compatibility of...

24 February 2021 7,845 5 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View

How to reduce static electricity of powder after lyophilization?

I am working on synthesizing and then purifying peptides using the SPPS system. After purification of the peptide, the peptide powder is obtained using a freeze dryer. When measuring the powder,...

22 February 2021 10,099 5 View

What kind of steel moulds are used for hot pressing metal powders?

My main concern is that the metal powders should not weld to the mold surface and I should easily be able to eject out the pressed samples. I am looking for alternative for graphite moulds. The...

22 February 2021 2,965 4 View

How to Study a proton NMR of Graphene prepared by Electrochemical Exfoliation technique?

I performed a Proton NMR of graphene powder prepared by electrochemical exfoliation technique. It shows some peaks. But I can't understand it.

21 February 2021 8,947 3 View