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Questions related from Uddipta Nath
I want to prepare 1000 ppm lead nitrate stock solution in distilled water. I am concern that storing it for a brief period say, 4-5 days or 1 week may lead to precipitation of lead. Please explain...
27 March 2019 672 4 View
I want to do BET analysis for samples such as agricultural biomass derived char (biochar) and also alkali (KOH) activated Bio chars. how long must be the degassing time for both bio char and...
11 February 2019 4,910 15 View
If biochars are activated with cold alkali (KOH) process, will it enhance the surface area. how effective will it be?
11 February 2019 9,382 0 View
I am planning to prepare activated bio char, activating it with KOH. I am planning to follow the method that includes no heating. I wanted to know will it rally increase the BET surface area? If...
28 January 2019 9,853 17 View
I am performing adsorption experiments to remove lead ions on an bio-based adsorbent. I am optimising the parameters such as initial ion concentration,pH etc using Response surface methodology. I...
23 November 2018 2,471 4 View
i have to perform adsorption of lead by taking biochar as adsorbent. Therefore i have to set initial concentration range for synthesise lead nitrate solution which would be used for adsorption...
22 November 2018 9,647 3 View
I am adsorbing heavy metals such as lead, on biochar surface, and thus properties like cation exchange capacity, complexes of metal, etc are concerned. I would like to know, what are the chemical/...
01 November 2018 5,710 3 View
I am using biochar for heavy metal sorption. I did CHNS analysis and got wt% of C,H,N,S. I have calculated O/C, H/C, C/N and obtained different values for different samples at different pyrolysis...
23 October 2018 2,567 16 View
I have done FTIR for Rice husk biochar prepared at 3000C and 4000C... I found out that a broad/wide peak at 3428.90 cm-1 for 3000 C and the peak tends to linearity at 4000 C. Also I have found a...
11 October 2018 8,358 10 View