A comparative study on the removal efficiency of metal ions (Cu2+, Ni2+, and Pb2+) using sugarcane bagasse-derived ZnCl2-activated carbon by the response surface methodology

In the present article, the optimization of removal of Cu2+, Ni2+, and Pb2+ using sugarcane-based activated carbon was studied. The activated carbon synthesized from low-cost sugarcane bagasse via ZnCl2 activation process was found to possess surprisingly high surface area (>1500 m2/g). In adsorp...

Full description

Saved in:
Bibliographic Details
Published in:Adsorption science & technology 2017-03, Vol.35 (1-2), p.72-85
Main Authors: Van Tran, Thuan, Bui, Quynh Thi Phuong, Nguyen, Trinh Duy, Le, Nhan Thi Hong, Bach, Long Giang
Format: Article
Language:English
Subjects:
Activated carbon
Adsorption
Bagasse
Comparative studies
Copper
Efficiency
Nickel
Optimization
Polynomials
Regression analysis
Regression models
Response surface methodology
Statistical analysis
Sugarcane
Surface chemistry
Variance analysis
Zinc chloride
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the present article, the optimization of removal of Cu2+, Ni2+, and Pb2+ using sugarcane-based activated carbon was studied. The activated carbon synthesized from low-cost sugarcane bagasse via ZnCl2 activation process was found to possess surprisingly high surface area (>1500 m2/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 Cu2+, Ni2+, and Pb2+ 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 (R2) 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: Ni2+ (66.4%, 2.99 mg/g) 
ISSN:0263-6174
2048-4038
DOI:10.1177/0263617416669152