【摘要】：位點(diǎn)能量分布理論(Site energy distribution theory,SEDT)是一種從能量的角度去研究吸附機(jī)理的理論方法,它可以提供吸附劑表面位點(diǎn)的吸附能量以及對(duì)應(yīng)的分布函數(shù).因此SEDT在吸附能不均勻的吸附劑表面上的應(yīng)用有著獨(dú)特的優(yōu)勢.該理論在化學(xué)化工領(lǐng)域的吸附劑材料上有著廣泛的應(yīng)用,尤其是在碳材料上有著較為深入的研究.土壤和沉積物是環(huán)境中重要的天然吸附劑,有著比碳材料表面更復(fù)雜的特性,因此已有研究將SEDT用于土壤和沉積物對(duì)污染物的吸附過程中.然而現(xiàn)有的研究在污染物對(duì)象的選取以及該理論的應(yīng)用方式上存在一定的局限性.鑒于SEDT在土壤和沉積物上的應(yīng)用潛能及重要意義,本文詳細(xì)地介紹了SEDT的主要內(nèi)容,并綜述了SEDT在國內(nèi)外吸附領(lǐng)域的應(yīng)用研究進(jìn)展,旨在將化學(xué)化工領(lǐng)域已有的SEDT應(yīng)用與討論方式遷移到環(huán)境領(lǐng)域中,最后對(duì)SEDT在土壤和沉積物上更深入的應(yīng)用以及SEDT自身的發(fā)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.
【作者單位】： 上海交通大學(xué)環(huán)境科學(xué)與工程學(xué)院;
【基金】：國家自然科學(xué)基金(21476139) 國家水體污染控制與治理科技重大專項(xiàng)(2014ZX07204-008) 上海交通大學(xué)PRP項(xiàng)目(T160PRP31010)資助~~
【分類號(hào)】：O647.3;X53

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