Octa Octa

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Questions related from Octa Octa

Coupling agents for amidation

I tried to do the amidation for activated carbon, by using some coupling agents, but it did not work. I used NHS/EDC, HATU-DIPEA, DCC with DMF as solvent. I analyzed the amount of nitrogen by...

01 January 1970 8,995 0 View

Oxidized activated carbon has lower adsorption capacity than activated carbon

Hi, I am working on activated carbon now for heavy metal removal. Based on the papers that I have read all the result showed that the modified-activated carbon has better adsorption removal and...

01 January 1970 7,367 10 View

Qe for pseudo first order

Hi, here is data from the experiments. I am a bit curious how to get the qe from this experimental data. Could you please help me to solve this as I want to use this data to study the kinetics of...

01 January 1970 418 8 View

Selectivity of adsorbent

Dear researchers I am working on the activated carbon, which synthesized by sulfuric acid impregnation. From EDS , 3% sulfur content attached to the AC. I studied the this material for Pb2+...

01 January 1970 2,157 1 View

Oxidized activated carbon by concentrated HNO3

Good afternoon, Anyone ever done oxidation of AC using HNO3 to enhance the number of carboxylic group? May I know the procedure in detail? Thank you.

01 January 1970 8,135 3 View

Ammonia Atmosphere in preparation of Activated Carbon

Is it possible only use ammonia as gas for activated carbon with using N2 gas before? Thank you. So far when i read the paper, they only use ammonia for doping the nitrogen into activated carbon...

01 January 1970 986 0 View