Debashrita Sarkar

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Questions related from Debashrita Sarkar

Regarding the O 1s XPS pf phyllosilciates, the peak near 531 belongs to Oxygen vacancy sites or O bonded to the Si from the silicate tetrahedra?

In O 1s spectra, usually the peak near 531 eV belongs to oxygen vacancy sites in oxides, however, in silicates, these peaks are often reported to originate from O-Si. I am confused if the intense...

11 December 2020 9,795 2 View

How to calculate the band gap of any semiconductor for solid powdered samples?

For Tauc Plot, (ahv)n/2 vs hv, from where do we get the value of absorption coefficient for that particular material. Is the value of absorbance same as absorption coefficient for solid samples ?...

20 March 2019 2,429 5 View

How to experimentally determine the value of Ce (equillibrium concentration of solute ) for studing dye adsorption ?

If I have to study adsorption kinetics of dye on any porous material, how do I experimentally determine Ce. For example dye concentration - 100mg/L adsorbent amount - 10mg The adsorbent is...

24 March 2017 2,689 4 View