位点能量分布理论及其在土壤和沉积物对污染物吸附研究中的应用
发布时间：2018-08-20 19:15
【摘要】：位点能量分布理论(Site energy distribution theory,SEDT)是一种从能量的角度去研究吸附机理的理论方法,它可以提供吸附剂表面位点的吸附能量以及对应的分布函数.因此SEDT在吸附能不均匀的吸附剂表面上的应用有着独特的优势.该理论在化学化工领域的吸附剂材料上有着广泛的应用,尤其是在碳材料上有着较为深入的研究.土壤和沉积物是环境中重要的天然吸附剂,有着比碳材料表面更复杂的特性,因此已有研究将SEDT用于土壤和沉积物对污染物的吸附过程中.然而现有的研究在污染物对象的选取以及该理论的应用方式上存在一定的局限性.鉴于SEDT在土壤和沉积物上的应用潜能及重要意义,本文详细地介绍了SEDT的主要内容,并综述了SEDT在国内外吸附领域的应用研究进展,旨在将化学化工领域已有的SEDT应用与讨论方式迁移到环境领域中,最后对SEDT在土壤和沉积物上更深入的应用以及SEDT自身的发展提出了展望.
[Abstract]:The site energy distribution theory (Site energy distribution the oryne SEDT) is a theoretical method to study the adsorption mechanism from the angle of energy. It can provide the adsorption energy and the corresponding distribution function of the adsorbent surface sites. Therefore, the application of SEDT on the surface of adsorbent with uneven adsorption energy has a unique advantage. This theory has been widely used in adsorbent materials in chemical and chemical fields, especially in carbon materials. Soil and sediment are important natural adsorbents in the environment, which have more complex properties than carbon materials. Therefore, SEDT has been used in the adsorption of pollutants in soils and sediments. However, the existing research has some limitations in the selection of pollutant objects and the application of the theory. In view of the application potential and significance of SEDT in soil and sediment, this paper introduces the main contents of SEDT in detail, and summarizes the application and research progress of SEDT in the field of adsorption at home and abroad. The purpose of this paper is to transfer the existing SEDT applications and discussion methods in chemical and chemical fields to the environmental field. Finally, the prospects for the further application of SEDT in soil and sediment and the development of SEDT itself are put forward.
【作者单位】： 上海交通大学环境科学与工程学院;
【基金】：国家自然科学基金(21476139) 国家水体污染控制与治理科技重大专项(2014ZX07204-008) 上海交通大学PRP项目(T160PRP31010)资助~~
【分类号】：O647.3;X53
本文编号：2194713
[Abstract]:The site energy distribution theory (Site energy distribution the oryne SEDT) is a theoretical method to study the adsorption mechanism from the angle of energy. It can provide the adsorption energy and the corresponding distribution function of the adsorbent surface sites. Therefore, the application of SEDT on the surface of adsorbent with uneven adsorption energy has a unique advantage. This theory has been widely used in adsorbent materials in chemical and chemical fields, especially in carbon materials. Soil and sediment are important natural adsorbents in the environment, which have more complex properties than carbon materials. Therefore, SEDT has been used in the adsorption of pollutants in soils and sediments. However, the existing research has some limitations in the selection of pollutant objects and the application of the theory. In view of the application potential and significance of SEDT in soil and sediment, this paper introduces the main contents of SEDT in detail, and summarizes the application and research progress of SEDT in the field of adsorption at home and abroad. The purpose of this paper is to transfer the existing SEDT applications and discussion methods in chemical and chemical fields to the environmental field. Finally, the prospects for the further application of SEDT in soil and sediment and the development of SEDT itself are put forward.
【作者单位】： 上海交通大学环境科学与工程学院;
【基金】：国家自然科学基金(21476139) 国家水体污染控制与治理科技重大专项(2014ZX07204-008) 上海交通大学PRP项目(T160PRP31010)资助~~
【分类号】：O647.3;X53
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