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Removal of Hg(ii) in aqueous solutions through physical and chemical adsorption principles

机译：通过物理和化学吸附原理去除水溶液中的HG（II）

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摘要

Adsorption has been the focus of research on the treatment of heavy metal mercury pollution since it is among the most toxic heavy metals in existence. The US EPA has set a mandatory discharge limit of 10 mu g Hg L-1 for wastewater and for drinking water a maximum accepted concentration of 1 mu g Hg L-1. Physical adsorption and chemical adsorption are the two major mechanisms of adsorption methods used for mercury removal in aqueous sources. The recent decades' research progress is reviewed to elaborate varieties of adsorption materials ranging from materials with large surface area for physical adsorption to metal oxides for chemical adsorption. Many examples are presented to illustrate the adsorption principles and clarify the relationship between the structure and performance of the adsorbents. The combination of physical adsorption and chemical adsorption gives rise to numbers of potential mercury removal composites. This review demonstrates the adsorption mechanism and the performance of varieties of adsorbents, which would provide a comprehensive understanding on the design and fabrication of new materials for the removal of heavy metal ions in water.
机译：吸附是研究重金属汞污染的研究的重点，因为它是存在最有毒的重金属。美国EPA已经为废水设定了10μgGHGL-1的强制性排放限制，用于饮用水最大可接受的1μgHg L-1的浓度。物理吸附和化学吸附是用于水溶液中汞去除的吸附方法的两个主要机制。近几十年的研究进展是审查的，以阐述从具有大表面积的材料的吸附材料品种，用于物理吸附到用于化学吸附的金属氧化物。提出了许多实例以说明吸附原理并阐明了吸附剂的结构和性能之间的关系。物理吸附和化学吸附的组合产生了潜在的汞去除复合材料的数量。该审查证明了吸附机制和品种的性能，可对新材料的设计和制作提供全面的了解，用于去除水中重金属离子的新材料。

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  • 来源
    《RSC Advances》 |2019年第36期|共13页
  • 作者

    Xia Mengdan; Chen Zhixin; Li Yao; Li Chuanhua; Ahmad Nasir M.; Cheema Waqas A.; Zhu Shenmin;

  • 作者单位

    Shanghai Jiao Tong Univ State Key Lab Met Matrix Composites Shanghai 200240 Peoples R China;

    Univ Wollongong Sch Mech Mat &

    Mechatron Engn Engn Mat Inst Wollongong NSW 2522 Australia;

    Shanghai Jiao Tong Univ State Key Lab Met Matrix Composites Shanghai 200240 Peoples R China;

    Shanghai Solid Waste Disposal Co Ltd Shanghai Peoples R China;

    Natl Univ Sci &

    Technol Sch Chem &

    Mat Engn Polymer Res Lab H-12 Sect Islamabad 44000 Pakistan;

    Natl Univ Sci &

    Technol Sch Chem &

    Mat Engn Polymer Res Lab H-12 Sect Islamabad 44000 Pakistan;

    Shanghai Jiao Tong Univ State Key Lab Met Matrix Composites Shanghai 200240 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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