The adsorption of carbofuran on the surface of antimony(V) arsenosilicate: a thermodynamic study

The adsorption of carbofuran on antimony(V) arsenosilicate cation exchanger has been studied at 30, 45 and 60°C to evaluate the thermodynamic equilibrium constant ( K 0), standard free energy change ( ΔG°), enthalpy change ( ΔH°) and entropy change ( ΔS°). The adsorption data could be represented by...

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Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 1995-11, Vol.104 (1), p.7-10
Main Authors: Varshney, K.G., Gupta, Alka, Singhal, K.C.
Format: Article
Language:English
Subjects:
Adsorption
Antimony(v) arsenosilicate
Carbofuran
Chemistry
Exact sciences and technology
General and physical chemistry
Ion-exchange
Other ion exchangers: preparations and properties
Solid-liquid interface
Surface physical chemistry
Thermodynamics
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Summary:The adsorption of carbofuran on antimony(V) arsenosilicate cation exchanger has been studied at 30, 45 and 60°C to evaluate the thermodynamic equilibrium constant ( K 0), standard free energy change ( ΔG°), enthalpy change ( ΔH°) and entropy change ( ΔS°). The adsorption data could be represented by the Freundlich isotherms. A comparison of the results has also been made with antimony(V) silicate and tin(IV) arsenosilicate cation exchangers.
ISSN:0927-7757
1873-4359
DOI:10.1016/0927-7757(95)03258-F