How different sulphur precursors modify the pH of an alkaline solution during hydrothermal synthesis of chalcogenides?

I am using different sulphur precursors in an alkaline medium for chalcogenide synthesis and at the end of the reaction i got decants with different pH values. How these precursors change the pH...

31 December 2019 231 1 View

In dye degradation, if the absorption peaks of the dye and catalyst lie in two different regions of solar spectrum, how to decide light source?

Illumination source has mainly to create excitons in the catalyst, hence mainly depends on the region of its band gap energy (hv>= Eg). I want to confirm whether if the absorption regions of...

06 July 2018 7,224 2 View

Why high pressure corresponds to lower increase in energy in comparison to temperature?

09 October 2017 8,637 3 View

What are the possible ways to increase the crystallite size in nanomaterials?

I am fabricating solar cells from earth abundant materials using sol gel method. In order to increase the efficiency i need to improve the crystallite size as in accord with Rodriguez - Lazcano.

09 October 2017 10,003 1 View

Why we get different intensity peaks in XRD?

i want to know the exact cause why along certain prefferred directions the X Rays are highly diffracted.

08 September 2017 8,482 13 View

How to remove pin holes in dropcasted thin films made from ink?

i am getting a lot of pin holes while fabricating dropcasted thin films from the corresponding inks. which parameter should i control to avoid these pin holes?

08 September 2017 5,427 0 View

I want to know how to calculate the average crystallite size for multiple XRD peaks of a compound?

01 January 1970 9,605 11 View

Is there any relation between particle size, grain size and crystallite size?

actually i am getting particle size and crystallite sizes almost in equal ranges for thin films, is it possible? if so please mention.

01 January 1970 8,186 13 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

Can chitosan alone can act as a reducing agent for Cu(0) nanoparticle sythesis?

[Synthesizing Cu nanoparticles without using chemical reductants]

01 March 2021 8,359 1 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How can I calculate the rdf of water molecules around 'Na' ions that are closest(adsorbed) to the nanoparticle(solute)?

Hi, I want to calculate the radial distribution function for water molecules around the Na+ ions adsorbed on the surface of a spherical nanoparticle using the gromacs trajectory dynamically? For...

28 February 2021 5,650 1 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View