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Persulfate enhanced photocatalytic degradation of bisphenol A by g-C3N4 nanosheets under visible light irradiation.
Chemosphere. 2017 Dec; 189:115-122.C

Abstract

The enhancement of g-C3N4 photocatalytic degradation of bisphenol A (BPA) via persulfate (PS) addition was investigated under visible light irradiation. The effects of various parameters on the BPA degradation were investigated, such as catalysts dosage, PS concentrations, initial pH value and BPA concentration. The results showed that g-C3N4 nanosheets exhibited superior photocatalytic activity toward BPA degradation as compared with bulk g-C3N4. The addition of PS can further improve the g-C3N4 photocatalytic performance for BPA degradation. With 5 mM PS, the degradation rate of BPA was increased from 72.5% to 100% at 90 min, and the corresponding first-order kinetic constants were increased from 0.0028 to 0.0140 min-1. The removal efficiency of BPA increased with the decrease of solution pH value. The active radicals in the reaction system were tested by electron spin resonance (ESR) and radicals quenching experiments. Instead of persulfate radicals' oxidation, it was proposed that the main active radicals for BPA degradation were superoxide radicals and the photogenerated holes.

Authors+Show Affiliations

Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; Hebei University of Technology, Tianjin 300400, PR China.Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China.Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China.Hebei University of Technology, Tianjin 300400, PR China.Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China.Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China.Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing 100049, PR China. Electronic address: zhaoxu@rcees.ac.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28934651

Citation

Liu, Bochuan, et al. "Persulfate Enhanced Photocatalytic Degradation of Bisphenol a By g-C3N4 Nanosheets Under Visible Light Irradiation." Chemosphere, vol. 189, 2017, pp. 115-122.
Liu B, Qiao M, Wang Y, et al. Persulfate enhanced photocatalytic degradation of bisphenol A by g-C3N4 nanosheets under visible light irradiation. Chemosphere. 2017;189:115-122.
Liu, B., Qiao, M., Wang, Y., Wang, L., Gong, Y., Guo, T., & Zhao, X. (2017). Persulfate enhanced photocatalytic degradation of bisphenol A by g-C3N4 nanosheets under visible light irradiation. Chemosphere, 189, 115-122. https://doi.org/10.1016/j.chemosphere.2017.08.169
Liu B, et al. Persulfate Enhanced Photocatalytic Degradation of Bisphenol a By g-C3N4 Nanosheets Under Visible Light Irradiation. Chemosphere. 2017;189:115-122. PubMed PMID: 28934651.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Persulfate enhanced photocatalytic degradation of bisphenol A by g-C3N4 nanosheets under visible light irradiation. AU - Liu,Bochuan, AU - Qiao,Meng, AU - Wang,Yanbin, AU - Wang,Lijuan, AU - Gong,Yan, AU - Guo,Tao, AU - Zhao,Xu, Y1 - 2017/09/04/ PY - 2017/06/06/received PY - 2017/08/16/revised PY - 2017/08/31/accepted PY - 2017/9/22/pubmed PY - 2018/2/15/medline PY - 2017/9/22/entrez KW - Bisphenol A KW - Persulfate KW - Photocatalysis KW - g-C(3)N(4) nanosheets SP - 115 EP - 122 JF - Chemosphere JO - Chemosphere VL - 189 N2 - The enhancement of g-C3N4 photocatalytic degradation of bisphenol A (BPA) via persulfate (PS) addition was investigated under visible light irradiation. The effects of various parameters on the BPA degradation were investigated, such as catalysts dosage, PS concentrations, initial pH value and BPA concentration. The results showed that g-C3N4 nanosheets exhibited superior photocatalytic activity toward BPA degradation as compared with bulk g-C3N4. The addition of PS can further improve the g-C3N4 photocatalytic performance for BPA degradation. With 5 mM PS, the degradation rate of BPA was increased from 72.5% to 100% at 90 min, and the corresponding first-order kinetic constants were increased from 0.0028 to 0.0140 min-1. The removal efficiency of BPA increased with the decrease of solution pH value. The active radicals in the reaction system were tested by electron spin resonance (ESR) and radicals quenching experiments. Instead of persulfate radicals' oxidation, it was proposed that the main active radicals for BPA degradation were superoxide radicals and the photogenerated holes. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/28934651/Persulfate_enhanced_photocatalytic_degradation_of_bisphenol_A_by_g_C3N4_nanosheets_under_visible_light_irradiation_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(17)31401-7 DB - PRIME DP - Unbound Medicine ER -