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IJSTR >> Volume 6 - Issue 3, March 2017 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Conductometric Studies Of Adsorption Of Sulfide On Charcoal From Aqueous Solution

[Full Text]

 

AUTHOR(S)

Md. Rezwan Miah, Asma Sarker, Md. Azizur Rahman,Tarannuma Ferdous Manny, Debashis Sen

 

KEYWORDS

Adsorption; Charcoal, Conductometric method; Langmuir isotherm, Freundlich isotherm; Monolayer coverage

 

ABSTRACT

Adsorption of sulfide (S2-) from aqueous solution on commercial charcoal was studied using conductometric technique. A proportionally constant for concentration of S2- and its conductance was obtained by measuring conductance of S2- solution over a concentration range of 0.00050.02 M. The time-dependent measured conductance of S2- solution was converted to concentration using the obtained constant. The adsorption data were analyzed by both Freundlich and Langmuir isotherms. A surface coverage equal to 2.5 mg per gram of charcoal was obtained. The adsorption was found to follow first-order kinetics having rate constant equal to 2.65  103 s-1.

 

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