Saif Mehdi

4 Questions 4 Answers 0 Followers

Questions related from Saif Mehdi

Why certain peaks have positive shift while others have negative shift in the BE when silica layer is added to the virgin material?

I have added silica layer to my adsorbent to make it hydro stable. When I did the XPS analysis for both coated and uncoated material, the shift in O1s peak was positive while shift in Zn2p peaks...

16 November 2021 2,729 4 View

What does this peak at 2360 cm-1 correspond to in the FTIR spectrum?

I had synthesized MIL-101(Cr) and performed batch kinetics study with dyes. After the kinetics study, I had dried the samples and performed FTIR studies and got a new peak at 2360 cm-1. I couldn't...

20 July 2021 8,359 4 View

What should I interpret from the following TGA curves?

I have coated my adsorbent with SiO2 layer using Stober's method. I have performed the TGA for both the samples and as you can see from the images attached, they are completely different. From...

01 November 2020 9,580 9 View

Is xrd a good technique for knowing chemical stability of MOFs

When we discuss chemical stability of MOFs then, most of the researchers report XRD of the MOFs after exposing the MOF to acidic or alkaline environment or solvents for 3 - 24 hrs. Is this enough...

01 January 1970 7,996 2 View