气体中微量甲醛的脱除研究进展  

Research progress in the removal of trace formaldehyde in gas

作　　者：孙曼颖 姜伟丽[1] 周广林[1] 周红军[1] 李芹[1] 李想 SUN Manying;JIANG Weili;ZHOU Guanglin;ZHOU Hongjun;LI Qin;LI Xiang(Institute of New Energy and Materials,China University of Petroleum,Beijing 102249,China)

机构地区：[1]中国石油大学(北京)新能源与材料学院,北京102249

出　　处：《化工进展》2021年第12期6876-6888,共13页Chemical Industry and Engineering Progress

基　　金：中国石油天然气集团有限公司-中国石油大学(北京)战略合作科技专项(ZLZX2020-04)。

摘　　要：主要阐述了去除甲醛气体的常用材料(吸附材料、催化氧化材料、光催化降解材料和生物技术材料)的研究进展,文中指出碳基材料、分子筛、有机金属骨架常常被用作吸附挥发性有机气体,它们具备丰富的孔道结构和较大的比表面积,碳基材料和分子筛表面存在大量丰富的基团能够有效地增大甲醛的吸附容量,提高甲醛的吸附效率;有机金属骨架表面的金属与甲醛结合成键,有效提高材料的化学吸附;以金属氧化物为载体的材料常被用作催化氧化甲醛分子,将甲醛分子转化为无毒性的二氧化碳和水;半导体材料TiO2常被用作光催化降解材料去除甲醛;除此之外还有一些利用生物技术来去除甲醛气体。本文对比了不同材料去除甲醛的优劣性,对不同的去除材料改性研究进行了归纳总结。Research progress of the commonly used materials for removing formaldehyde gas was described including adsorption materials,catalytic oxidation materials,photocatalytic degradation materials and biotechnological materials in this paper.Among them,carbon-based materials,molecular sieves and organic metal skeletons were often used to absorb volatile organic gases.They had rich pore structure and large specific surface area.There were abundant groups on the surface of carbon-based materials and molecular sieve,which can effectively increase the adsorption capacity of formaldehyde and improve the adsorption efficiency of formaldehyde.The metal on the organic metal skeleton surface was bonded with formaldehyde,which can effectively improve the chemical adsorption of the material.The materials with metal oxides as carriers were often used to catalyze the oxidation of formaldehyde molecules into non-toxic carbon dioxide and water,and semiconductor material TiO2 was often applied as photocatalytic degradation material to remove formaldehyde,while others used biotechnology to remove formaldehyde gases.The advantages and disadvantages of removing formaldehyde from different materials were compared and the research on the modification of different removing materials was summarized.

关 键 词：甲醛 吸附材料 金属氧化物 光催化 生物技术 

分 类 号：TQ2[化学工程—有机化工]