Title of article
Adsorption of Lead and Copper by a Carbon Black and Sodium Bentonite Composite Material: Study on Adsorption Isotherms and Kinetics
Author/Authors
Matthews ، Thabo - National University of Science and Technology , Majoni ، Stephen - National University of Science and Technology , Nyoni ، Bothwell - National University of Science and Technology , Naidoo ، Bobby - Vaal University of Technology , Chiririwa ، Halenden - National University of Science and Technology
Pages
9
From page
101
To page
109
Abstract
The efficiency of using a composite of carbon black and sodium bentonite in treating drinking water contaminated with lead and copper ions was analysed. The effects of pH, contact time, concentration and adsorbent dosage using an adsorbent composite of 20 % sodium bentonite and 80 % carbon black were studied. The adsorption data was tested with respect to Langmuir, Freundlich and Temkin isotherms. The data fit well with the Langmuir isotherm model with high coefficients of determination for both metal ions adsorption. The adsorption kinetics follows a pseudo second-order model for both metal ions. The maximum metal ion uptake (qmax) of the composite adsorbent is 7.69 and 0.80 mg/g for lead and copper respectively.
Keywords
Adsorption , carbon black , Sodium bentonite , Isotherms , Kinetics
Journal title
Iranian Journal of Chemistry and Chemical Engineering(IJCCE)
Serial Year
2019
Journal title
Iranian Journal of Chemistry and Chemical Engineering(IJCCE)
Record number
2470278
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