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Heterogeneous activation of peroxymonosulfate by hierarchical CuBi2O4 to generate reactive oxygen species for refractory organic compounds degradation: morphology and surface chemistry derived reaction and its mechanism.
Environ Sci Pollut Res Int. 2018 Feb; 25(5):4419-4434.ES

Abstract

Activation of peroxymonosulfate (PMS) by a novel hierarchical CuBi2O4 generated reactive oxygen radical for degradation refractory organic compounds in aqueous solution, which would be controlled by the morphology and surface chemistry of solid catalyst. It's found that the activation ability of CuBi2O4 toward PMS was highly dependent on the morphology and surface hydroxyl group, as using rhodamine B (RhB) as the model compound. The spherical CuBi2O4, which possessed higher density of surface hydroxyl group, exhibited better catalytic activity in RhB degradation than scattered cluster CuBi2O4, and as-prepared CuBi2O4 could efficiently activated PMS to degrade RhB within a wide pH range as an absolute heterogeneous process. The emerging organic chemicals, including bisphenol A, 1H-benzotriazole, and carbamazepine, could also be effectively removed in this novel CuBi2O4/PMS. Furthermore, activation mechanism of PMS by as-prepared CuBi2O4 was proposed, the existence of surface hydroxyl group bonded with Cu(II), and inward electron transfer cycling reaction between Cu(II)/Cu(I) facilitated the effective activation of PMS to generate SO4·- and ·OH. In addition, the intermediates of RhB formed in this process were identified by silylation derivatation-GC-MS and LC-high-resolution MS/MS, and degradation pathway was proposed.

Authors+Show Affiliations

Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, People's Republic of China.Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, People's Republic of China.Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, People's Republic of China.Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, People's Republic of China.Key Laboratory Urban Stormwater System and Water Environmental, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing, 100044, People's Republic of China.Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, People's Republic of China. qifei@bjfu.edu.cn.State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, People's Republic of China. xbb_hit@126.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29185216

Citation

Wang, Yiping, et al. "Heterogeneous Activation of Peroxymonosulfate By Hierarchical CuBi2O4 to Generate Reactive Oxygen Species for Refractory Organic Compounds Degradation: Morphology and Surface Chemistry Derived Reaction and Its Mechanism." Environmental Science and Pollution Research International, vol. 25, no. 5, 2018, pp. 4419-4434.
Wang Y, Li F, Xue T, et al. Heterogeneous activation of peroxymonosulfate by hierarchical CuBi2O4 to generate reactive oxygen species for refractory organic compounds degradation: morphology and surface chemistry derived reaction and its mechanism. Environ Sci Pollut Res Int. 2018;25(5):4419-4434.
Wang, Y., Li, F., Xue, T., Liu, C., Yuan, D., Qi, F., & Xu, B. (2018). Heterogeneous activation of peroxymonosulfate by hierarchical CuBi2O4 to generate reactive oxygen species for refractory organic compounds degradation: morphology and surface chemistry derived reaction and its mechanism. Environmental Science and Pollution Research International, 25(5), 4419-4434. https://doi.org/10.1007/s11356-017-0773-9
Wang Y, et al. Heterogeneous Activation of Peroxymonosulfate By Hierarchical CuBi2O4 to Generate Reactive Oxygen Species for Refractory Organic Compounds Degradation: Morphology and Surface Chemistry Derived Reaction and Its Mechanism. Environ Sci Pollut Res Int. 2018;25(5):4419-4434. PubMed PMID: 29185216.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Heterogeneous activation of peroxymonosulfate by hierarchical CuBi2O4 to generate reactive oxygen species for refractory organic compounds degradation: morphology and surface chemistry derived reaction and its mechanism. AU - Wang,Yiping, AU - Li,Fan, AU - Xue,Tianshan, AU - Liu,Chao, AU - Yuan,Donghai, AU - Qi,Fei, AU - Xu,Bingbing, Y1 - 2017/11/28/ PY - 2017/08/13/received PY - 2017/11/15/accepted PY - 2017/12/1/pubmed PY - 2018/11/14/medline PY - 2017/11/30/entrez KW - CuBi2O4 KW - Intermediates KW - Peroxymonosulfate KW - Reactive oxygen species KW - Refractory organic compounds KW - Sulfate radical SP - 4419 EP - 4434 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 25 IS - 5 N2 - Activation of peroxymonosulfate (PMS) by a novel hierarchical CuBi2O4 generated reactive oxygen radical for degradation refractory organic compounds in aqueous solution, which would be controlled by the morphology and surface chemistry of solid catalyst. It's found that the activation ability of CuBi2O4 toward PMS was highly dependent on the morphology and surface hydroxyl group, as using rhodamine B (RhB) as the model compound. The spherical CuBi2O4, which possessed higher density of surface hydroxyl group, exhibited better catalytic activity in RhB degradation than scattered cluster CuBi2O4, and as-prepared CuBi2O4 could efficiently activated PMS to degrade RhB within a wide pH range as an absolute heterogeneous process. The emerging organic chemicals, including bisphenol A, 1H-benzotriazole, and carbamazepine, could also be effectively removed in this novel CuBi2O4/PMS. Furthermore, activation mechanism of PMS by as-prepared CuBi2O4 was proposed, the existence of surface hydroxyl group bonded with Cu(II), and inward electron transfer cycling reaction between Cu(II)/Cu(I) facilitated the effective activation of PMS to generate SO4·- and ·OH. In addition, the intermediates of RhB formed in this process were identified by silylation derivatation-GC-MS and LC-high-resolution MS/MS, and degradation pathway was proposed. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/29185216/Heterogeneous_activation_of_peroxymonosulfate_by_hierarchical_CuBi2O4_to_generate_reactive_oxygen_species_for_refractory_organic_compounds_degradation:_morphology_and_surface_chemistry_derived_reaction_and_its_mechanism_ L2 - https://dx.doi.org/10.1007/s11356-017-0773-9 DB - PRIME DP - Unbound Medicine ER -