Degradation of Orange G by Fenton-like reaction with Fe-impregnated biochar catalyst
Document Type
Article
Publication Date
2-1-2018
Abstract
This study was conducted to evaluate the catalytic activity of Fe-impregnated sugarcane biochar (FSB) for removing azo dye Orange G (OG) from solution under various Fenton-like oxidation conditions. The optimum molar Fe concentration for impregnation to achieve maximum catalytic activity of FSB in Fenton-like reaction with acceptable effluent Fe release was 0.25 M (163.4 Fe mg/g in FSB). High removal efficiency of 99.7% was achieved within 2 h of reaction at optimum conditions of 0.075 g/L H2O2, 0.5 g/L FSB for 0.1 g/L OG at initial pH 5.5 under 25 °C. For every 10 °C increase, the time for maximum OG degradation efficiency decreased by 0.5 h. The OG removal by FSB exhibited a slow induction reaction followed by fast OG decomposition. FSB can be used successively for at least 4 runs with >89.3% OG removal. The FSB was more economical, efficient, and recyclable than other conventional Fenton oxidation catalysts.
Publication Source (Journal or Book title)
Bioresource Technology
First Page
368
Last Page
376
Recommended Citation
Park, J., Wang, J., Xiao, R., Tafti, N., DeLaune, R., & Seo, D. (2018). Degradation of Orange G by Fenton-like reaction with Fe-impregnated biochar catalyst. Bioresource Technology, 249, 368-376. https://doi.org/10.1016/j.biortech.2017.10.030