Anchored oxygen-donor coordination to iron for photodegradation of organic pollutants | |
Ji, Hongwei; Song, Wenjing; Chen, Chuncheng; Yuan, Hong; Ma, Wanhong; Zhao, Jincai | |
刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
![]() |
2007-07-15 | |
卷号 | 41期号:14页码:5103-5107 |
ISSN号 | 0013-936X |
DOI | 10.1021/es070021u |
英文摘要 | A photocatalyst of oxygen-donor coordination to iron, complex of 5-sulfosalicylic acid (SSA) with ferric ion, supported on resin to cycle Fe(3+)/Fe(2+) center under visible irradiation can effectively generate center dot OH radicals from H(2)O(2), leading to degradation of organic pollutants in water. The higher turnover number was achieved by this catalyst for the degradation of model compound than those reporte or the general N-donor ligands catalysts. The reversible "on/off" switching of Fe(3+)/Fe(2+) complexation with SSA, coupled with the phenol/phenoxyl radical conversion of the o-phenoxyl moiety of SSA, produces an ideal catalytic system that separates the Fenton reaction and the followed oxidations by center dot OH radicals (in water phase) from the regeneration of the catalytic species, Fe (SSA)(2)-, which occurs on the surface of resin. This system not only inhibits the undesired destruction of the ligands by center dot OH radicals, improving the stability of the catalyst, but also avoids the unnecessary decomposition of H(2)O(2) into HO(2)center dot that occurs in the homogeneous Fenton system. Therefore, the system suggests an efficient utilization of H(2)O(2) for degradation of organic pollutants. |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000248363100046 |
内容类型 | 期刊论文 |
源URL | [http://ir.iccas.ac.cn/handle/121111/62583] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Ma, Wanhong |
作者单位 | Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Lab Photochem, Beijing 100080, Peoples R China |
推荐引用方式 GB/T 7714 | Ji, Hongwei,Song, Wenjing,Chen, Chuncheng,et al. Anchored oxygen-donor coordination to iron for photodegradation of organic pollutants[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2007,41(14):5103-5107. |
APA | Ji, Hongwei,Song, Wenjing,Chen, Chuncheng,Yuan, Hong,Ma, Wanhong,&Zhao, Jincai.(2007).Anchored oxygen-donor coordination to iron for photodegradation of organic pollutants.ENVIRONMENTAL SCIENCE & TECHNOLOGY,41(14),5103-5107. |
MLA | Ji, Hongwei,et al."Anchored oxygen-donor coordination to iron for photodegradation of organic pollutants".ENVIRONMENTAL SCIENCE & TECHNOLOGY 41.14(2007):5103-5107. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论