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首页> 外文期刊>Journal of Hazardous Materials >Reduction of hexavalent chromium using Aerva lanata L.: Elucidation of reduction mechanism and identification of active principles
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Reduction of hexavalent chromium using Aerva lanata L.: Elucidation of reduction mechanism and identification of active principles

机译:使用Aerva lanata L.还原六价铬:阐明还原机理并确定有效成分

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摘要

The effluent discharge treatment for controlling the environment from non biodegradable metal contaminants using plant extract is an efficient technique. The reduction of hexavalent chromium by abundantly available weed, Aerva lanata L. was investigated using batch equilibrium technique. The variables studied were Cr(Ⅵ) concentration, Aerva lanata L. dose, contact time, pH, temperature and agitation speed. Cyclic voltammetry and ICP-MS analysis confirmed the reduction of Cr(Ⅵ) to Cr(Ⅲ). Electrochemical analysis proved that, the chromium has not been degraded and the valency of the chromium has only been changed. ICP-MS analysis shows that 100 ng/L of hexavalent chromium was reduced to 97.01 ng/L triva-lent chromium. These results suggest that components present in the Aerva lanata L. are responsible for the reduction of Cr(Ⅵ) to Cr(Ⅲ). The prime components ferulic acid, kaempherol and β-carboline present in the Aerva lanata L. may be responsible for the reduction of Cr(Ⅵ)as evident from LC-MS analysis.
机译:使用植物提取物控制非生物可降解金属污染物环境的废水排放处理是一种有效的技术。使用分批平衡技术研究了大量可利用的杂草(Aerva lanata L.)对六价铬的还原作用。研究的变量是Cr(Ⅵ)浓度,Aerva lanata L.剂量,接触时间,pH,温度和搅拌速度。循环伏安法和ICP-MS分析证实了Cr(Ⅵ)还原为Cr(Ⅲ)。电化学分析表明,铬没有被降解,而铬的价态只是改变了。 ICP-MS分析表明100 ng / L的六价铬被还原为97.01 ng / L的三价铬。这些结果表明,Aerva lanata L.中存在的成分是导致Cr(Ⅵ)还原为Cr(Ⅲ)的原因。 LC-MS分析表明,Aerva lanata L.中存在的主要成分阿魏酸,kaempherol和β-咔啉可能导致Cr(Ⅵ)的还原。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2014年第15期|89-95|共7页
  • 作者单位

    Bioprocess and Engineering Laboratory, Department of Biochemistry, Periyar University, Salem -11, Tamil Nadu, India;

    Coordination Chemistry Research Laboratory, Department of chemistry, Periyar University, Salem -11, Tamil Nadu, India;

    Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University. Iksan, Jeonbuk 570-752, Korea;

    Coordination Chemistry Research Laboratory, Department of chemistry, Periyar University, Salem -11, Tamil Nadu, India;

    Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University. Iksan, Jeonbuk 570-752, Korea;

    Division of Biotechnology, College of Environmental and Bioresource Sciences, Chonbuk National University. Iksan, Jeonbuk 570-752, Korea;

    Institute of Environmental and Water Resource Management (IPASA), Building No.: C07, Universiti Teknologi Malaysia, 81310 Skudai, Johor Bahru, Johor, Malaysia;

    Bioprocess and Engineering Laboratory, Department of Biochemistry, Periyar University, Salem -11, Tamil Nadu, India,Bioprocess and Engineering Laboratory, Department of Biochemistry, Periyar University, Salem 636 011, Tamil Nadu, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hexavalent chromium; Aerva lanata; Cyclic voltammetry; ICP-MS; LC-MS;

    机译:六价铬铜绿蕨循环伏安法;ICP-MS;液相色谱;

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