TY - JOUR ID - 36219 TI - Adsorption of Lead and Copper by a Carbon Black and Sodium Bentonite Composite Material: Study on Adsorption Isotherms and Kinetics JO - Iranian Journal of Chemistry and Chemical Engineering JA - IJCCE LA - en SN - 1021-9986 AU - Matthews, Thabo AU - Majoni, Stephen AU - Nyoni, Bothwell AU - Naidoo, Bobby AU - Chiririwa, Halenden AD - Department of Applied Chemistry, National University of Science and Technology, Bulawayo, ZIMBABWE AD - Biosorption and Water Research Laboratory Department of Chemistry, Vaal University of Technology, Private Bag X021, Vanderbijlpark, 1911, Andries Potgieter Blvd, SOUTH AFRICA AD - Biosorption and Water Research Laboratory Department of Chemistry, Vaal University of Technology, Private Bag X021, Vanderbijlpark, 1911, Andries Potgieter Blvd, SOUTH AFRICA Y1 - 2019 PY - 2019 VL - 38 IS - 1 SP - 101 EP - 109 KW - Adsorption KW - carbon black KW - Sodium bentonite KW - Isotherms KW - Kinetics DO - 10.30492/ijcce.2019.36219 N2 - 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. UR - https://ijcce.ac.ir/article_36219.html L1 - https://ijcce.ac.ir/article_36219_15ad53d8433173fb753489c462864bea.pdf ER -