A comparative study on the removal efficiency of metal ions (Cu, Ni, and Pb) using sugarcane bagasse-derived ZnCl-activated carbon by the response surface methodology
| Autor: | Thuan Van Tran, Quynh Thi Phuong Bui, Trinh Duy Nguyen, Nhan Thi Hong Le, Long Giang Bach |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Adsorption Science & Technology, Vol 35 (2017) |
| Druh dokumentu: | article |
| ISSN: | 0263-6174 2048-4038 02636174 |
| DOI: | 10.1177/0263617416669152 |
| Popis: | In the present article, the optimization of removal of Cu 2+ , Ni 2+ , and Pb 2+ using sugarcane-based activated carbon was studied. The activated carbon synthesized from low-cost sugarcane bagasse via ZnCl 2 activation process was found to possess surprisingly high surface area (>1500 m 2 /g). In adsorption study, the individual and interactive effects of three critical parameters including initial concentration, pH of solution, and activated carbon dosage on removal efficiency of Cu 2+ , Ni 2+ , and Pb 2+ were assessed by applying the response surface methodology combined with central composite design. The established second-order polynomial regression models provided an excellent interpretation of experimental data with acceptable coefficients of determination ( R 2 ) and analysis of variance demonstrated statistical significance of the model terms. In the examined region, the predicted maximum removal efficiency and adsorption capacity were found in the order: Ni 2+ (66.4%, 2.99 mg/g) |
| Databáze: | Directory of Open Access Journals |
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