您好，欢迎访问广东省农业科学院 机构知识库！
广东省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

2-Nitrophenol reduction promoted by S-putrefaciens 200 and biogenic ferrous iron: The role of different size-fractions of dissolved organic matter

文献类型： 外文期刊

作者： Zhu, Zhenke 1 ; Tao, Liang 1 ; Li, Fangbai 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.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China

关键词： Dissolved organic matter;Dissimilatory reduction of iron oxides;Interfacial reaction;Electron transfer capacities;2-nitrophenol

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：10.588； 五年影响因子：10.129 ）

ISSN： 0304-3894

年卷期： 2014 年 279 卷

页码：

收录情况： SCI

摘要： The reduction of nitroaromatic compounds (listed as a priority pollutant) in natural subsurface environments typically coexists with dissimilatory reduction of iron oxides effected by dissolved organic matter (DOM). Investigating the impact of the DOM that influences those reduction processes is crucial for understanding and predicting the geochemical fate of these environmental species. This study investigated the impact of different molecular weight DOM fractions (DMWDs) on the 2-nitrophenol (2-NP) reduction by S. putrefaciens 200 (SP200) and alpha-Fe2O3 with lactate (excluding electron donor interference). Kinetic measurements demonstrated that 2-NP reduction rates were affected by the redox reactivity of active species under DMWDs (denoted as L-DOM, M-DOM, and H-DOM). The enhanced reduction rates are consistent with the negative shifts in peak oxidation potential values, the increases in HA-like/FA-like values, aromaticity index values and electron transfer capacity values. L-DOM acted mainly as ligands to complex Fe(II), whereas the significant role of H-DOM in reductive reactions should be acting as an electron shuttle, transferring electrons from SP200 to Fe(III) and 2-NP and from biogenic Fe(II) to 2-NP, further accelerating the 2-NP reductions. Those observations provide valuable insights into the role of DOM in the biogeochemical redox processes and the remediation of contaminated soil in a natural environment. (C) 2014 Elsevier B.V. All rights reserved.

  • 相关文献

[1]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

[2]Interactive Reaction of Polychlorinated Compound Dechlorinating Transformation at the Soil Interface. Tao Liang,Zhou Shungui,Li Fangbai,Tao Liang,Tao Liang. 2009

[3]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

[4]Reductive transformation of 2-nitrophenol by Fe(II) species in gamma-aluminum oxide suspension. Tao, Liang,Li, Fangbai,Sun, Kewen,Tao, Liang,Sun, Kewen,Feng, Chunhua,Tao, Liang,Sun, Kewen. 2009

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

[6]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.

[7]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.

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

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：广东省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台