利用介孔分子筛中高度分散的Cu⁃Co氧化物的高效协同作用提高VOCs的催化消除效率  

Improved Catalytic Abatement Efficiency of VOCs via Creating Efficient Synergy of Dispersed Cu⁃Co Oxides in Molecular Sieve

作　　者：欧锐 刘梦婷 陆雨桐 王旭裕 袁爱华 李露露 杨福 OU Rui;LIU Meng-Ting;LU Yu-Tong;WANG Xu-Yu;YUAN Ai-Hua;LI Lu-Lu;YANG Fu(School of Environmental and Chemical Engineering,Jiangsu University of Science and Technology,Zhenjiang,Jiangsu 212003,China)

机构地区：[1]江苏科技大学环境与化学工程学院,镇江212003

出　　处：《无机化学学报》2021年第7期1322-1336,共15页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.51672114,21908085,21806077);江苏省自然科学基金(No.BK20161357);江苏省博士后科研资助(No.2020Z291);江苏科技大学海洋装备与技术研究院基金(No.HZ20190004);工业和信息化部高新技术船舶科研项目(No.[2017]614)资助。

摘　　要：采用一种改进的胶束辅助合成方法,成功地制备了一系列含铜钴氧化物的xCuyCo/NS⁃MS⁃s介孔分子筛催化剂。以气相甲苯作为VOCs的代表污染物,考察了催化剂对甲苯的去除效果。通过各种表征手段,对催化剂的结构、形貌以及Cu⁃Co双金属物种的化学状态等物理、化学性质进行了详细的表征。结果表明,当双金属之比控制为nCu∶nCo=1∶3时,催化剂具有最佳的甲苯催化燃烧活性(甲苯转化率50%时的温度T_(50)=232℃,甲苯转化率99%时的温度T_(99)=239℃)以及良好的稳定性。A series of dual copper⁃cobalt oxides⁃containing mesoporous molecular sieve catalysts xCuyCo/NS⁃MS⁃s were successfully fabricated by an improved micelle⁃assisted synthetic method.Taking gaseous toluene as the representative pollutant of VOCs,the removal effect of toluene by the catalysts was investigated.The physicochemical properties including structure,the morphology of catalysts,and the chemical status of Cu⁃Co bimetallic species were detailedly identified through various characterizations.The results showed that when the ratio of bimetal was controlled as nCu∶nCo=1∶3,the catalyst had the best catalytic combustion activity of toluene(T_(50)=232℃,T_(99)=239℃,where T_(50) is the reaction temperature when the toluene conversion is 50%,and T_(99) is the reaction temperature when the toluene conversion is 99%)and good stability.

关 键 词：双金属氧化物 介孔分子筛 挥发性有机化合物 催化氧化 协同作用 

分 类 号：O614.812[理学—无机化学] O614.121[理学—化学]