Arpan Sarkar

9 Questions 48 Answers 0 Followers

Questions related from Arpan Sarkar

Is there any study that reveals the super reactiveness of the (001) crystal plane of TiO2(B)?

Several scientific articles are there which demonstrate the super-reactiveness or various advantages of the (001) crystal plane of anatase TiO2. Similarly, are there studies that evince the...

01 July 2020 3,034 5 View

Can the maximum adsorption capacity be more than 1 g/g according to Dubinin isotherms?

This question is related to the adsorption of a metalloid ion from the aqueous solution onto an adsorbent, and I wish to have answers on this question in lights of Dubinin isotherms (D-A and D-R...

22 November 2019 3,664 2 View

An increase in adsorbent dose after a certain limit, decreases the removal percentage of an adsorptive-Is it possible?

Please be informed that I am not talking about the adsorption capacity (qe mg/g or ug/g). I just wish to have your opinion on whether an increase in adsorbent dose after a certain limit could in...

15 March 2019 7,445 9 View

Why should we use the universal gas constant R when dealing with liquids?

The universal/molar/ideal gas constant R is given by R=PV/nT; this however, on an average, is considered true for gases (H2, O2, N2 are excluded). Involving R in chemical expressions dealing with...

22 January 2019 322 11 View

What could be the band gap of multi walled carbon nanotubes?

What is the band gap of MWCNT (not SWCNT)? Is it near about 2eV? If not, what could be it's electronic property? Are MWCNTs metalic like zigzag SWCNT or semiconductor or insulator?

11 May 2017 1,761 8 View

What is the oxidation potential of As(III)?

Can anyone tell what is the oxidation potential of arsenic (III)? I need a different approach to get the value...not the Eh-pH diagram.

07 April 2017 1,057 3 View

What should be the ratio between %of COD removed to %of BOD5 removed in an integrated aerobic-anaerobic activated sludge reactor ?

If we treat industrial waste water with COD~ 3000mg/L and BOD5~400mg/L in an integrated anaerobic-aerobic activated sludge reactor, then what should be expected value of %of CODremoved/%of BOD5...

01 May 2016 5,442 4 View

Why does the AAS show more value of Arsenic than its original value?

I have experienced a problem regarding the estimation of arsenic(III) in AAS. I placed some water (MiliQ) samples treated with functionalized Multi-Walled Carbon Nanotubes (f-MWCNT) in HG-AAS....

15 April 2016 4,384 16 View

How to determine the Zeta Potential of Multi-walled Carbon Nanotubes?

Please tell me how much CNT is to be dispersed in how much distilled or Mili-Q water for the process.

28 February 2016 6,534 3 View