MWCNTs/ZIF-67复合材料的制备及其催化性能研究  

Preparation and catalytic property of MWCNTs/ZIF-67 composite

作　　者：赵娅敏[1,2,3,4] 孙乐兵 刘倩 马好文 刘梦实 陈丽华 张平[1,2,3,4] 康淑荷 鲜亮 Zhao Yamin;Sun Lebing;Liu Qian;Ma Haowen;Liu Mengshi;Chen Lihua;Zhang Ping;Kang Shuhe;Xian Liang(School of Chemical Engineering,Northwest Minzu University,Lanzhou 730030;Key Laboratory of Environment Friendly Composite Materials of the State Ethnic Affairs Commission,Lanzhou 730030;Key Laboratory of Utility of Environmental Friendly Composite Materials and Biomass in Universities of Gansu Province,Lanzhou 730030;Engineering Research Center of Biomass-Functional Composite Materials of Gansu Province,Lanzhou 730030;Lanzhou Petrochemical Research Center of PetroChina,Petrochemical Research Institute,PetroChina,Lanzhou 730060)

机构地区：[1]西北民族大学化工学院,兰州730030 [2]环境友好复合材料国家民委重点实验室,兰州730030 [3]甘肃省高校环境友好复合材料及生物质利用重点实验室,兰州730030 [4]甘肃省生物质功能复合材料工程研究中心,兰州730030 [5]中国石油兰州化工研究中心,兰州730060

出　　处：《化工新型材料》2023年第4期126-130,共5页New Chemical Materials

基　　金：西北民族大学中央高校基本科研业务费专项资金(31920180003,31920190017,31920190018);西北民族大学中央高校基本科研业务费专项资金资助研究生项目(Yxm2019136,Yxm2020119)。

摘　　要：通过简便、经济的方法合成了MWCNTs/ZIF-67复合材料,并运用SEM、TEM、XRD、XPS等技术手段对该复合材料进行了表征。为了评估MWCNTs/ZIF-67催化剂的催化活性,在NaBH_(4)存在下进行了对硝基苯酚(4-NP)的还原实验。结果表明,MWCNTs/ZIF-67催化剂具有很好的催化性能,在6min内对4-NP的催化效率高达99.82%,表观速率系数达到0.4973min^(-1)。此外,该材料可以通过磁铁从水溶液中收集,便于回收和再利用。且经过5次循环后,复合材料的催化活性仍很高,表明该复合材料有较好的稳定性,可以作为去除环境污染物的新型催化材料。In this paper,MWCNTs/ZIF-67 composite material was synthesized by a simple and economical method,and characterized by SEM,TEM、XRD,XPS and other technical means.In order to evaluate the catalytic activity of the MWCNTs/ZIF-67 catalyst,the reduction experiment of p-nitrophenol(4-NP)was carried out in the presence of NaBH_(4).The results showed that the MWCNTs/ZIF-67 catalyst had good catalytic performance with a catalytic efficiency of 99.82%for 4-NP within 6min and an apparent rate coefficient of 0.4973min^(-1).In addition,the material could be collected from aqueous solution by magnets,which was convenient for recycling and reuse.Moreover,after 5 cycles,the catalytic activity of the composite material was still very high,indicating that the composite material had good stability and could be used as a new type of catalytic material for the removal of environmental pollutants.

关 键 词：MWCNTS ZIF-67 复合材料 对硝基苯酚 催化 

分 类 号：TQ426.8[化学工程]