| Bismuth oxybromide promoted detoxification of cylindrospermopsin under UV and visible light illumination | |
| Wang, Shulian1,2; Ma, Wanhong1; Fang, Yanfen1; Jia, Manke1; Huang, Yingping1; Huang, YP (reprint author), China Three Gorges Univ, Engn Res Ctr Ecoenvironm Three Gorges Reservoir R, Minist Educ, Yichang 443002, Peoples R China. | |
| 2014-05-05 | |
| Source Publication | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| ISSN | 0926-3373 |
| Volume | 150Pages:380-388 |
| Abstract | Bismuth oxybromide (BiOBr) was prepared and characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and UV-vis diffuse reflectance spectroscopy (DRS). The BiOBr promoted detoxification of cylindrospermopsin (CYN) under UV (lambda < 350 nm) and visible light (lambda > 420 nm) illumination was studied. The results revealed that the toxic uracil unit of CYN was removed, and the carboxylic group of the degraded product was also decomposed, to give the innoxious tricyclic guanidine product under the title conditions. In contrast, the traditional Fenton reagents (Fe2+ and H2O2) limited to remove the uracil moiety of CYN with the carboxylic group intact. Presumably, the decarboxylation ability of BiOBr was induced by Br 4p valence band hole (h(Br) (+)(4p)), and the degradation mechanism was also proposed based on the experimental results and theoretical calculation. (C) 2013 Elsevier B.V. All rights reserved.; Bismuth oxybromide (BiOBr) was prepared and characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and UV-vis diffuse reflectance spectroscopy (DRS). The BiOBr promoted detoxification of cylindrospermopsin (CYN) under UV (lambda < 350 nm) and visible light (lambda > 420 nm) illumination was studied. The results revealed that the toxic uracil unit of CYN was removed, and the carboxylic group of the degraded product was also decomposed, to give the innoxious tricyclic guanidine product under the title conditions. In contrast, the traditional Fenton reagents (Fe2+ and H2O2) limited to remove the uracil moiety of CYN with the carboxylic group intact. Presumably, the decarboxylation ability of BiOBr was induced by Br 4p valence band hole (h(Br) (+)(4p)), and the degradation mechanism was also proposed based on the experimental results and theoretical calculation. (C) 2013 Elsevier B.V. All rights reserved. |
| Subtype | Article |
| Keyword | Cylindrospermopsin Uracil Biobr Degradation Mechanism |
| Department | [Wang, Shulian; Ma, Wanhong; Fang, Yanfen; Jia, Manke; Huang, Yingping] China Three Gorges Univ, Engn Res Ctr Ecoenvironm Three Gorges Reservoir R, Minist Educ, Yichang 443002, Peoples R China; [Wang, Shulian] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| DOI | 10.1016/j.apcatb.2013.12.016 |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| Funding Organization | National Natural Science Foundation of China [21377067, 21207079, 21177072] ; National Natural Science Foundation of China [21377067, 21207079, 21177072] ; National Natural Science Foundation of China [21377067, 21207079, 21177072] ; National Natural Science Foundation of China [21377067, 21207079, 21177072] |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Chemistry ; Engineering |
| WOS Subject | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
| WOS ID | WOS:000332803700041 |
| WOS Keyword | PHOTOCATALYTIC DEGRADATION ; CYANOTOXIN CYLINDROSPERMOPSIN ; CYANOBACTERIAL TOXIN ; NORTHEAST GERMANY ; WATER-SUPPLIES ; 1ST REPORT ; BIOBR ; MICROCYSTIN ; OXIDATION ; MICROSPHERES |
| Funding Organization | National Natural Science Foundation of China [21377067, 21207079, 21177072] ; National Natural Science Foundation of China [21377067, 21207079, 21177072] ; National Natural Science Foundation of China [21377067, 21207079, 21177072] ; National Natural Science Foundation of China [21377067, 21207079, 21177072] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/342005/20121 |
| Collection | 藻类生物学及应用研究中心_期刊论文 |
| Corresponding Author | Huang, YP (reprint author), China Three Gorges Univ, Engn Res Ctr Ecoenvironm Three Gorges Reservoir R, Minist Educ, Yichang 443002, Peoples R China. |
| Affiliation | 1.China Three Gorges Univ, Engn Res Ctr Ecoenvironm Three Gorges Reservoir R, Minist Educ, Yichang 443002, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Shulian,Ma, Wanhong,Fang, Yanfen,et al. Bismuth oxybromide promoted detoxification of cylindrospermopsin under UV and visible light illumination[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2014,150:380-388. |
| APA | Wang, Shulian,Ma, Wanhong,Fang, Yanfen,Jia, Manke,Huang, Yingping,&Huang, YP .(2014).Bismuth oxybromide promoted detoxification of cylindrospermopsin under UV and visible light illumination.APPLIED CATALYSIS B-ENVIRONMENTAL,150,380-388. |
| MLA | Wang, Shulian,et al."Bismuth oxybromide promoted detoxification of cylindrospermopsin under UV and visible light illumination".APPLIED CATALYSIS B-ENVIRONMENTAL 150(2014):380-388. |
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| Bismuth oxybromide p（2017KB） | 开放获取 | CC BY-NC-SA | View Application Full Text | |||
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