表面化学改性吸附用活性炭的研究进展

活性炭表面官能团和杂原子的种类与数量多少决定了活性炭的表面化学性质，而化学性质决定了活性炭的化学吸附特性。通过进行表面氧化、还原以及负载增加或者消除某些基团和活性中心，可以大大改善活性炭对特定吸附质的吸附能力。文章简要介绍了活性炭表面存在的官能团、杂原子和化合物，并对近年来国内外在吸附用活性炭表面化学改性方面的进展进行评述。

PROGRESS IN SURFACE CHEMICAL MODIFICATION OF ACTIVATED CARBON FOR ABSORPTION

The surface chemical properties of activated carbons are closely related to the functional groups, heteroatoms and chemical compounds on their surface, which further determine the chemical absorbing characteristic of the activated carbon. The base groups and active centers can be increased or decreased or even removed completely via surface oxidizing, reducing and loading pretreatment, leading to substantial improvement in the activated carbon s ability to absorb specific adsorbates. In this paper, the functional groups on the surface of activated carbons, heteroatoms and chemical compounds in the activated carbons are discussed, and the new progresses in study on surface chemical modification of activated carbon used as absorbent are reviewed.