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Reductive transformation of 2-nitrophenol by Fe(II) species in gamma-aluminum oxide suspension

文献类型： 外文期刊

作者： Tao, Liang 1 ; Li, Fangbai 1 ; Feng, Chunhua 3 ; Sun, Kewen 1 ;

作者机构： 1.Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China

2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China

3.S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China

4.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

关键词： gamma-Aluminum oxide;2-Nitrophenol;Fe(II) adsorption;Cyclic voltammetry;Fe(III)/Fe(II) redox potential

期刊名称：APPLIED CLAY SCIENCE （ 影响因子：5.467； 五年影响因子：5.414 ）

ISSN： 0169-1317

年卷期： 2009 年 46 卷 1 期

页码：

收录情况： SCI

摘要： Fe(II) adsorption onto gamma-Al(2)O(3) surfaces was studied in view of its high reactivity towards the aqueous reductive transformation of 2-NP. Kinetic measurements demonstrated that rates of 2-NP reduction were highly sensitive to pH, Fe(II) concentration and reaction temperature. An increase in pH, Fe(H) concentration or reaction temperature gave rise to an elevated density of Fe(II) adsorbed to mineral surfaces, which further resulted in an enhanced reaction rate of 2-NP reduction. By using the diffuse double layer (DDL) surface complexation model, the dominant Fe(II) surface complex that was responsible for the high reactivity was predicted to be the strongly bound SOFe(+) functional group (represented by Al(st)OFe(+)) onto gamma-Al(2)O(3) surfaces. In addition, cyclic voltammetry tests showed that the enhanced activity of Fe(II) species was attributed to the negative shift of the redox potential of Fe(III)/Fe(II) couple, resulted from the enhanced concentration of Al(st)OFe(+) complex. (C) 2009 Elsevier B.V. All rights reserved.

  • 相关文献

[1]Electrochemical evidence of Fe(II)/Cu(II) interaction on titanium oxide for 2-nitrophenol reductive transformation. Tao, Liang,Li, Fangbai. 2012

[2]REDUCTIVE ACTIVITY OF ADSORBED Fe(II) ON IRON (OXYHYDR)OXIDES FOR 2-NITROPHENOL TRANSFORMATION. Tao, Liang,Li, Fangbai,Wang, Yongkui,Tao, Liang,Wang, Yongkui,Sun, Kewen.

[3]Effects of dissolved organic matter on adsorbed Fe(II) reactivity for the reduction of 2-nitrophenol in TiO2 suspensions. Zhu, Zhenke,Zhu, Zhenke,Tao, Liang,Li, Fangbai,Zhu, Zhenke. 2013

[4]Fe(II)/Cu(II) interaction on alpha-FeOOH, kaolin and TiO2 for interfacial reactions of 2-nitrophenol reductive transformation. Tao, Liang,Zhu, Zhenke,Li, Fangbai,Zhu, Zhenke,Zhu, Zhenke. 2013

[5]2-Nitrophenol reduction promoted by S-putrefaciens 200 and biogenic ferrous iron: The role of different size-fractions of dissolved organic matter. Zhu, Zhenke,Tao, Liang,Li, Fangbai,Zhu, Zhenke,Zhu, Zhenke. 2014

[6]Understanding the role of Fe(III)/Fe(II) couple in mediating reductive transformation of 2-nitrophenol in microbial fuel cells. Li, Fangbai,Liu, Liang,Tong, Hui,Feng, Chunhua,Feng, Chunhua,Liu, Yongye,Yue, Xianjun,Sun, Kewen.

[7]Effects of the Fe-II/Cu-II Interaction on Copper Aging Enhancement and Pentachlorophenol Reductive Transformation in Paddy Soil. Wang, Yong-kui,Tao, Liang,Chen, Man-jia,Li, Fang-bai,Wang, Yong-kui,Chen, Man-jia,Wang, Yong-kui,Chen, Man-jia. 2012

[8]Environmental pH and ionic strength influence the electron-transfer capacity of dissolved organic matter. Lu, Qin,Yuan, Yong,Tao, Ya,Tang, Jia. 2015

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