Saqib Khan

8 Questions 11 Answers 0 Followers

Questions related from Saqib Khan

What is meant by a negative value of desorption graph in BET analysis at low relative pressure?

i have attach the graph.

09 March 2025 6,574 0 View

Can anyone explain how to determine degassing temperature and time for biosynthesized nanomaterial for BET analysis?

I have also attached TGA and DSC analysis of biosynthesised nanomaterial.

31 May 2024 1,668 1 View

Is it possible that crystallite size Is greater than particle size (particularly for biologically synthesized nanoparticles) ?

TEM images showing particle size of 2-5nm while when I have calculated crystallite size from XRD using Scherrer equation 13-15 nm approximately.

05 December 2023 7,240 9 View

Is it possible nanoparticle does not show absorbance peak in UV-vis but shows peak in PL?

I have synthesized sulfide nanoparticles using biosynthesis approach of size 20 nm. Previously reported papers shows both UV and PL peaks. UV graph shows only peak of protein at 280nm while PL...

11 July 2023 5,192 1 View

The specific capacitance value of RuO2 nanoparticles from CV is comparatively low with GCD analysis. why?

I have synthesized RuO2 nanoparticles. But Specific capacitance showing major difference between the values that we get from CV curve and GCD curve.

17 April 2023 3,413 2 View

what are the decomposition temperatures of ruo2 when it changes?

I have bio-synthesized RuO2 nanoparticles at room temperature. TGA and DSC graphs are attached.

21 March 2023 6,743 3 View

Which binder is good for room temperature, biosynthesized nanoparticles??

I have synthesized RuO2 nanoparticle at room temperature at pH 7, facing an issue regarding binder. Its getting dissolve when suspended in electrolyte(H2SO4). Also please help which electrolyte...

20 January 2023 7,167 10 View

What's the reason for the broadening of photoluminescence spectra of biosynthesized quantum dots?

I have synthesised quantum dot using green synthesis. Uv vis spectra show peak at 270 nm(protein peak) and 400nm(quantum dot peak). Excitation wavelength for PL measurement is 390nm but i get...

12 April 2022 9,779 10 View