Anchored oxygen-donor coordination to iron for photodegradation of organic pollutants

doi:10.1021/es070021u

CORC > 化学研究所 > 中国科学院化学研究所

	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.