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مقالات فارسیISIکنفرانسهاژورنالها

Adsorption of Lead and Copper by a Carbon Black and Sodium Bentonite Composite Material: Study on Adsorption Isotherms and Kinetics

محل انتشار: Iranian Journal of Chemistry and Chemical Engineering، دوره: 38، شماره: 1
سال انتشار: 1398
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 183

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لینک ثابت به این مقاله:
https://civilica.com/doc/2283391

شناسه ملی سند علمی:

JR_IJCCE-38-1_012

تاریخ نمایه سازی: 17 خرداد 1404

چکیده 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 ۲۰ % sodium bentonite and ۸۰ % 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 ۷.۶۹ and ۰.۸۰ mg/g for lead and copper respectively.

کلیدواژه ها:

Adsorption ، carbon black ، Sodium bentonite ، Isotherms ، Kinetics

نویسندگان

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 X۰۲۱, Vanderbijlpark, ۱۹۱۱, Andries Potgieter Blvd, SOUTH AFRICA

Halenden Chiririwa

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

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