| Visible light-induced degradation of organic pollutants using Fe（ll） supported on silica gel as an effective catalyst |
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| 作者姓名： | ZHAO Chao ;HUANG YingPing ;FANG YanFen ;JIANG LiRong ;LIU LiMing ;King Tong Lau |
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| 作者单位： | [1]Center for Ecologic and Environment Science, China Three Gorges University, Yichang 443002, China; [2]College of Chemistry, Central China Normal University, Wuhan 430070, China; [3]School of Chemical -Sciences, National Centre for Sensor Research, Dublin City University, Dublin, Ireland |
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| 基金项目： | Supported by the National Natural Science Foundation of China （Grant Nos. 50639070 and 20373074）, the Youth Outstanding Foundation of Hubei Province of China （Grant No. 2005ABB030） and the Natural Science Research Plan Project of Education Office of Hubei Province of China （Grant No. 2004Z001） |
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| 摘 要： | Silica gel-supported Fe（ll） （SiOFe） was prepared and used for heterogeneous degradation of sulforhodamine B （SRB） and 2,4-dichlorophenol （DCP） under visible irradiation （λ 〉 420 nm） as an effective catalyst. UV-visible spectra, and infrared Spectrophotometry （IR）, fluorescence, total organic carbon （TOC） and electron spin resonance （ESR） measurements were employed to analyze the photoreaction products. The results showed that SRB could be efficiently degraded by SiOFe/H2O2 system under visible irradiation with 100% decolorization and 72.3% TOC removal after 180 min illumination. The results of ESR and fluorescence measurements indicated that the oxidative process was predominated mainly by the hydroxyl radical （.OH） generated in the system.
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| 关 键 词： | 二氧化硅凝胶剂 异质性 光催化剂 辐射度 |
| 收稿时间： | 2007-06-26 |
Visible light-induced degradation of organic pollutants using Fe(II) supported on silica gel as an effective catalyst |
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| ZHAO Chao,;HUANG YingPing,;FANG YanFen,;JIANG LiRong,;LIU LiMing,;King Tong Lau.Visible light-induced degradation of organic pollutants using Fe(II) supported on silica gel as an effective catalyst[J].Chinese Science Bulletin,2008,53(10):1497-1502. |
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| Authors: | Chao Zhao YingPing Huang YanFen Fang LiRong Jiang LiMing Liu King Tong Lau |
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| Institution: | (1) Center for Ecologic and Environment Science, China Three Gorges University, Yichang, 443002, China;(2) College of Chemistry, Central China Normal University, Wuhan, 430070, China;(3) School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin, Ireland |
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| Abstract: | Silica gel-supported Fe(II) (SiOFe) was prepared and used for heterogeneous degradation of sulforhodamine B (SRB) and 2,4-dichlorophenol
(DCP) under visible irradiation (λ > 420 nm) as an effective catalyst. UV-visible spectra, and infrared Spectrophotometry (IR), fluorescence, total organic
carbon (TOC) and electron spin resonance (ESR) measurements were employed to analyze the photoreaction products. The results
showed that SRB could be efficiently degraded by SiOFe/H2O2 system under visible irradiation with 100% decolorization and 72.3% TOC removal after 180 min illumination. The results of
ESR and fluorescence measurements indicated that the oxidative process was predominated mainly by the hydroxyl radical (·OH)
generated in the system.
Supported by the National Natural Science Foundation of China (Grant Nos. 50639070 and 20373074), the Youth Outstanding Foundation
of Hubei Province of China (Grant No. 2005ABB030) and the Natural Science Research Plan Project of Education Office of Hubei
Province of China (Grant No. 2004Z001) |
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| Keywords: | silica gel sulforhodamine B heterogeneity photocatalyst visible irradiation |
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