TiO_2/活性炭纤维复合材料去除室内挥发性有机物的研究进展

Progress of TiO_2/ACF Composite for the Removal of Indoor VOCs

多孔材料与纳米TiO2复合是目前光催化领域的研究热点。多孔材料作为吸附中心可为TiO2光催化剂提供高浓度反应环境,加快催化剂传质速率,提高催化剂矿化效率,抑制催化剂失活,解决催化剂分离难题;TiO2作为降解中心可实现多孔材料的原位再生,增加其平衡吸附量,从而实现对室内挥发性有机物(VOCs)污染的高效深度净化。本文就TiO2/活性炭纤维(ACF)复合材料的制备方法、TiO2/ACF去除VOCs的环境影响因素及协同作用机制进行了综述,并对今后的研究提出了展望。

For photoeatalysis field, the combination of porous adsorbent with nano-sized TiO2 photocatalyst has attracted great research interests. Porous adsorbent can provide high organic concentration environment for loaded TiO2 photoeatalyst to enhance the photoeatalytic rate and efficiency, retard catalyst deactivation and resolve the separation problem of nano-sized TiO2. TiO2 photocatalysis regenerated the porous adsorbent in-situ. In this paper, preparation of TiO2 photoeatalyst-activated carbon fiber （ACF） composite TiO2/ACF, environmental factors and mechanism of synergy effect for TiO2/ACF used for the removal of VOCs were reviewed, and the research future of TiO2/ACF was discussed.