活性炭材料用于典型污染物吸附和光催化氧化的研究进展

Progress of activated carbon materials for adsorption and photocatalytic oxidation of typical pollutants

活性炭材料具有较高的比表面积,高度发达的孔隙结构和稳定的化学性质等优点。因此,在吸附和光催化氧化污染物的领域得到了广泛的应用。活性炭主要通过范德华力和化学键力对污染物进行吸附;针对光催化氧化技术,由于活性炭具有丰富的孔结构,可以把活性位点均匀分散在活性炭表面,有利于光激发和污染物与活性位点的充分接触,进而显著提高材料的光催化氧化性能。与此同时,本文也提出了活性炭作为吸附材料以及作为载体在光催化氧化方面的不足之处。最后展望了以活性炭为载体的材料的发展前景,以期对以活性炭为载体的材料在环境污染方面的研究起到积极的促进作用。

Activated carbon materials have the advantages of high specific surface area, highly developed pore structure and stable chemical properties. Therefore, they are widely used in the field of adsorption and photocatalytic oxidation of pollutants. Activated carbon mainly adsorbs pollutants through van der Waals and chemical bonding forces;for photocatalytic oxidation technology, due to the rich pore structure of activated carbon, the active sites can be uniformly dispersed on the surface of activated carbon, which is conducive to photoexcitation and sufficient contact between pollutants and active sites, thus significantly improving the photocatalytic oxidation performance of the material. At the same time, the shortcomings of activated carbon as an adsorbent material and as a carrier in photocatalytic oxidation are also presented in this paper. Finally, the prospect of the development of activated carbon as a carrier material is prospected in order to play a positive role in promoting the research of activated carbon as a carrier material in environmental pollution.