摘要
挥发性有机化合物（VOCs）．是一类严重影响环境及人体健康的污染物。如何有效地消除VOCs．已经成为一个非常令人关注的课题。目前VOCs的处理技术主要有吸附、吸收冷凝、膜分离、光催化降解、生物降解、等离子体技术和催化燃烧等方法。其中催化燃烧法由于效果好．无二次污染等特点．受到了广泛的关注。已有大量文献报道了贵金属催化剂（Pd，Pt，Rh等）对VOCs的处理具有活性高、耐热性能好、催化剂使用寿命长等优点。但由于价格、资源等因素，其推广应用受到了限制。在报道的VOCs净化催化剂中．一般往往集中于γ-Al2O3为载体，其他还有SiO2，TiO2及ZrO2等。
The Zr-pillaraed montmorillonite supported Ce and Cu-Ce catalysts were prepared by impregnation method. The performance of the catalysts was evaluated via the catalytic oxidation of volatile organic compounds （acetone, ethyl acetate, and toluene）. The results showed that after supporting with Ce and Cu-Ce, the catalysts had a better reducibility. Moreover, the surface areas of the samples were increased. In addition, it was found that the Zr-pillared montmorillonite supported Cu-Ce catalysts had a higher activity and the reaction temperature decreased by 150-200 ℃ compared with the sample without Cu-Ce modification.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2007年第4期748-752,共5页
Chinese Journal of Inorganic Chemistry
基金
国家"973"(No.2004CB719504)资助项目
