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Iranian Journal of Chemistry and Chemical Engineering، جلد ۳۸، شماره ۱، صفحات ۱۰۱-۱۰۹
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عنوان انگلیسی Adsorption of Lead and Copper by a Carbon Black and Sodium Bentonite Composite Material: Study on Adsorption Isotherms and Kinetics
چکیده انگلیسی مقاله 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.
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نویسندگان مقاله Thabo Matthews |
Department of Applied Chemistry, National University of Science and Technology, Bulawayo, ZIMBABWE

Stephen Majoni |
Department of Applied Chemistry, National University of Science and Technology, Bulawayo, ZIMBABWE

Bothwell Nyoni |
Department of Applied Chemistry, National University of Science and Technology, Bulawayo, ZIMBABWE

Bobby Naidoo |
Biosorption and Water Research Laboratory Department of Chemistry, Vaal University of Technology, Private Bag X021, Vanderbijlpark, 1911, Andries Potgieter Blvd, SOUTH AFRICA

Halenden Chiririwa |
Biosorption and Water Research Laboratory Department of Chemistry, Vaal University of Technology, Private Bag X021, Vanderbijlpark, 1911, Andries Potgieter Blvd, SOUTH AFRICA

نشانی اینترنتی http://www.ijcce.ac.ir/article_36219_15ad53d8433173fb753489c462864bea.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/444/article-444-2063214.pdf
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