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H₃PW₁₂O₄₀/TiO₂ catalyst-induced photodegradation of bisphenol A (BPA): kinetics, toxicity and degradation pathways.
Chemosphere. 2013 May; 91(9):1266-72.C

Abstract

A series of experiments were conducted to investigate the kinetics of bisphenol A (2,2-bis(4-hydroxyphenyl)propane, BPA) degradation using H₃PW₁₂O₄₀/TiO₂ (PW₁₂/TiO₂) composite catalyst, toxicity of BPA intermediate products and degradation pathways. The results showed that the BPA photodegradation using PW₁₂/TiO₂ catalyst followed the first-order kinetics, and under the optimal experimental conditions at H₃PW₁₂O₄₀ loading amount of 6.3%, BPA initial concentration of 5 mg L(-1), and the solution pH of 8.2, the kinetic constant was 3.7-fold larger than that of pristine TiO₂. The hydroxyl radicals derived from the electroreduction of dissolved oxygen with electrons via chain reactions was the main reactive oxygen species. According to the identified intermediates, 4-isopropanolphenol, hydroquinone, 4-hydroxybenzoic acid, and phenol, the possible BPA photodegradation pathways were proposed. Upon 12h irradiation, 77% BPA (20 mg L(-1)) was mineralized and the toxicity to Daphnia magna (D. magna) was almost disappeared, implying the strong oxidation ability of PW₁₂/TiO₂ catalyst. The studies provide important information about the BPA degradation and promote the technical development for BPA removal.

Authors+Show Affiliations

School of Urban and Environmental Sciences, Northeast Normal University, Changchun 130024, PR China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23540812

Citation

Lu, Nan, et al. "H₃PW₁₂O₄₀/TiO₂ Catalyst-induced Photodegradation of Bisphenol a (BPA): Kinetics, Toxicity and Degradation Pathways." Chemosphere, vol. 91, no. 9, 2013, pp. 1266-72.
Lu N, Lu Y, Liu F, et al. H₃PW₁₂O₄₀/TiO₂ catalyst-induced photodegradation of bisphenol A (BPA): kinetics, toxicity and degradation pathways. Chemosphere. 2013;91(9):1266-72.
Lu, N., Lu, Y., Liu, F., Zhao, K., Yuan, X., Zhao, Y., Li, Y., Qin, H., & Zhu, J. (2013). H₃PW₁₂O₄₀/TiO₂ catalyst-induced photodegradation of bisphenol A (BPA): kinetics, toxicity and degradation pathways. Chemosphere, 91(9), 1266-72. https://doi.org/10.1016/j.chemosphere.2013.02.023
Lu N, et al. H₃PW₁₂O₄₀/TiO₂ Catalyst-induced Photodegradation of Bisphenol a (BPA): Kinetics, Toxicity and Degradation Pathways. Chemosphere. 2013;91(9):1266-72. PubMed PMID: 23540812.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - H₃PW₁₂O₄₀/TiO₂ catalyst-induced photodegradation of bisphenol A (BPA): kinetics, toxicity and degradation pathways. AU - Lu,Nan, AU - Lu,Ying, AU - Liu,Fangyuan, AU - Zhao,Kun, AU - Yuan,Xing, AU - Zhao,Yahui, AU - Li,Yuan, AU - Qin,Hongwei, AU - Zhu,Jia, Y1 - 2013/03/27/ PY - 2012/11/27/received PY - 2013/02/08/revised PY - 2013/02/09/accepted PY - 2013/4/2/entrez PY - 2013/4/2/pubmed PY - 2013/11/12/medline SP - 1266 EP - 72 JF - Chemosphere JO - Chemosphere VL - 91 IS - 9 N2 - A series of experiments were conducted to investigate the kinetics of bisphenol A (2,2-bis(4-hydroxyphenyl)propane, BPA) degradation using H₃PW₁₂O₄₀/TiO₂ (PW₁₂/TiO₂) composite catalyst, toxicity of BPA intermediate products and degradation pathways. The results showed that the BPA photodegradation using PW₁₂/TiO₂ catalyst followed the first-order kinetics, and under the optimal experimental conditions at H₃PW₁₂O₄₀ loading amount of 6.3%, BPA initial concentration of 5 mg L(-1), and the solution pH of 8.2, the kinetic constant was 3.7-fold larger than that of pristine TiO₂. The hydroxyl radicals derived from the electroreduction of dissolved oxygen with electrons via chain reactions was the main reactive oxygen species. According to the identified intermediates, 4-isopropanolphenol, hydroquinone, 4-hydroxybenzoic acid, and phenol, the possible BPA photodegradation pathways were proposed. Upon 12h irradiation, 77% BPA (20 mg L(-1)) was mineralized and the toxicity to Daphnia magna (D. magna) was almost disappeared, implying the strong oxidation ability of PW₁₂/TiO₂ catalyst. The studies provide important information about the BPA degradation and promote the technical development for BPA removal. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/23540812/H₃PW₁₂O₄₀/TiO₂_catalyst_induced_photodegradation_of_bisphenol_A__BPA_:_kinetics_toxicity_and_degradation_pathways_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(13)00313-5 DB - PRIME DP - Unbound Medicine ER -