How can one prepare activated carbon from a specific carbon material for adsorption and desorption of a specific cation like Na+ or K+ or Ca2+?

26 January 2019 1 6K Report

The cation source will be an industrial and agricultural waste.

Jackson Chamwaura

Activated carbon has no cation selectivity. Adsorption occurs due to ion-dipole interaction. Ions are selectively adsorbed through the formation of coordination bonds, which selectively bind certain ions.

Badges
Science topic

More Jackson Chamwaura's questions See All

Why might some bands on an agarose gel appear above the top of the ladder?

In our experiment, the top of our ladder indicates 12,000bp, and in subsequent lanes we have samples where the band shows up slightly above the top of the ladder (however we know for a fact that...

27 January 2021 5,769 3 View

How to thaw whole blood for ELISA?

Hi all, I have frozen (-20C) samples of whole blood from mice from a recent experiment. I need to find a way to thaw them so as to extract sera for an ELISA, while minimizing hemolysis and...

08 December 2020 1,004 3 View

Can lead toxicity cause diabetes?

Can high exposure to lead oxidise pancreas beta cells, reducing insulin secretion? If so, what type of diabetes would this be?

30 June 2020 2,455 2 View

Please, recommendations needed for appropriate test instruments for self-perception and self-efficacy relevant to the workplace?

I am interested in the influence of skill bias perception on employees' self-perception and self-efficacy in the workplace. Looking for test instruments that measure attitude, behavior, and...

07 February 2020 5,964 3 View

Is there an appropriate method for the application of extreme value statistics to the analysis of water quality data?

The use of GEV and GPD has received much attention in hydrology for use in extreme precipitation and flood analysis. Methods of parameter estimates such as Maximum Likelihood Estimates and Linear...

25 March 2018 4,980 8 View

Matlab Cellular Automata help? For some reason I am not getting the correct Image?

function Life1D(ruleNum, key) key1 = key; ruleNum1 = ruleNum; rule = toBinary(ruleNum); initialRow = firstRow(ruleNum, key); disp(['Life1D ' num2str(2*key + 1) ' ' num2str(key +...

30 January 2018 9,992 3 View

Special precautions for immunohistochemistry co-stain with three different methods?

I'm staining a paraffin-embedded bone marrow section using three different methods: Traditional": (primary RAT Ab, secondary MOUSE ab conjugated to HRP),

18 September 2016 2,560 1 View

How has the analysis of "boundary-work" been applied in cultural studies?

I am looking for research which applies boundary theory/boundary-work analysis to cultural/social differentiation.

03 April 2016 2,698 5 View

Minimum protein size for gel shift assay?

Hi all, I was wondering if there was a minimum kDa value that a protein would need to have in order to cause a visible gel shift in an EMSA assay. My protein of interest is rather small (15-20...

14 March 2016 575 4 View

Why is my SDS-PAGE not running straight; wells are expanding/compressing?

Hi all, Recently I've been having issues with my SDS-PAGE gels not running properly. The samples don't run in a straight line as they should, but instead the lanes in the middle of the gel migrate...

09 March 2016 758 11 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View