What could be the reason that Zinc at lower Impregnation ratio gives microporous carbon and at higher ratio gives mesoporous carbon?

Zinc activation of carbon is one way of chemical activation that gives higher surface area. What could be the mechanism and reaction that leads to such phenomenon? Kindly Suggest.

09 November 2017 3,374 1 View

How can we draw the adsorption isotherms of Langmuir and Freundlich together with the experimental data in a single graph on Excel?

Thanks in advance

22 December 2020 7,853 4 View

All the experimental results need to be presented with statistical analysis. In case of adsorption isotherm and kinetic study, what does I include?

What are the things should I include under statistical analysis.

19 November 2020 5,098 2 View

What is the effect of isothermal heat treatment on materials structure from room temperature?

Hi all I would like to study the microstructure evolution of semi-solid tin-lead alloy for an extruded sample during the isothermal heat-treatment process. Is there any difference if I heat up...

18 November 2020 9,087 7 View

Heat exchange due to humidity difference ?

Hello everyone. How can I simulate evaporative cooling between air and water (isothermal) placed in direct contact? Is it possible to choose or set the humidity difference as the heat exchange...

11 November 2020 5,225 3 View

How do I interpret for the following N2 adsorption-desorption isotherm?

I have an adsorption-desorption isotherm of N2 from a 900oC-char sample in mixture of CO2+H20 at 90% of conversion. However, I am not sure this curve belong to what type of isotherm according to...

19 September 2020 8,868 4 View

How to do lab studies using ion exchange column if the column exhaustion time is too high at a given specific flow rate BV/hr ?

I am looking to remove an heavy metal by ion exchange column. The concentration of heavy metal in the water is only 25 ppb. I had already got the equilibrium isotherm capacity at 25 ppb. Assuming...

07 September 2020 6,194 2 View

Can I use gas concentration in the Langmuir equation?

Hi, there are questions about applying the Langmuir equation for gas adsorption. In one sentence, I wonder if it is okay to use C as the amount of gas supplied in the Langmuir equation. q=q_sat *...

06 September 2020 5,319 12 View

On considering the effect of homogeneous-heterogeneous reaction in fluid flow problem, what are the chemical species A and B?

31 August 2020 9,983 5 View

Any difference between "hydroxy naphtol blue", and "hydroxy naphtol blue , disodium salt" for LAMP?

I am reproducing this work on LAMP (isothermal amplification) A new visually improved and sensitive loop mediated isotherm... , but I am a bit confused about the difference between "hydroxy...

31 August 2020 7,289 3 View

What is the reason (meso)pore size distribution is unreliable for an H3 hysteresis loop?

I recently read the book chapter on the assessment of mesoporosity from "Adsorption by Powders and Porous Solids" by Sing et al. and the remark was raised that in the case of a certain hysteresis...

30 July 2020 7,758 4 View