改性活性炭用于室内甲醛吸附净化的评述

A Critical Review of Modified Activated Carbon in the Adsorption of Indoor Formaldehyde

本文评述了国内外利用活性炭在吸附甲醛方面的应用和研究进展,指出活性炭的孔结构和表面官能团在吸附过程所起的重要作用。通过介绍负载有机胺化合物对活性炭表面官能团的修饰和改性方法,分析了所引入官能团(氨基和羟基)与甲醛分子的结合方式,并对利用该方法制备的改性活性炭在应用方面所存在的问题进行了分析和讨论。

The paper critically reviews the advances in the development and application of activated carbons(ACs) for formaldehyde adsorption, and indicates that ACs’ pore structures and surface chemical functional groups are playing key roles to improve the adsorption capacity. One modification method is introduced by loading some specific amines on ACs’ s surface, where the formaldehyde molecule can be tightly connected with the functional groups, such as amino and hydroxyl groups. Some issues present in the application are noticed and discussed as well.