摘要
通过使用二苯基硅烷和氨丙基三乙氧基硅烷对Ti/ZSM-5分子筛进行非对称修饰,获得了外侧亲油、内侧亲水的双亲型催化剂材料am-Ti/ZSM-5.修饰过程及后处理过程并未破坏分子筛的骨架结构.样品在不添加萃取剂的情况下,在以H 2O 2为氧化剂的二苯并噻吩(DBT)氧化脱硫(ODS)反应中表现出高催化活性,在35 min内可以实现模拟油中DBT的完全脱除.实验结果表明,分子筛催化剂的双亲型结构使其在极性-非极性混合体系中具有优异的催化性能.
Amphiphilic Ti/ZSM-5 zeolite(am-Ti/ZSM-5) was successfully prepared by asymmetric modification of Ti/ZSM-5 zeolite with diphenylsilane and aminopropyltriethoxysilane. The modification and post-treatment process did not destroy the framework structure of zeolite. The sample showed high catalytic activity in the oxidative desulfurization(ODS) of dibenzothiophene(DBT) using H2O2 as the oxidant and without adding the extractant. The complete removal of DBT from the simulated oil can be achieved within 35 min. These results indicate that the unique amphiphilic structure of am-Ti/ZSM-5 makes it have excellent catalytic performance in polar-nonpolar mixtures.
作者
王影
孙传胤
王润伟
张震东
张大明
张宗弢
裘式纶
WANG Ying;SUN Chuanyin;WANG Runwei;ZHANG Zhendong;ZHANG Daming;ZHANG Zongtao;QIU Shilun(College of Chemistry,State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,Jilin University,Changchun 130012,China;College of Electronic Science and Engineering,State Key Laboratory on Integrated Optoelectronics,Jilin University,Changchun 130012,China)
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2019年第6期1265-1270,共6页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:21771081,21390394,20971052)
长白山学者奖励计划(批准号:2014004)
吉林省科技发展计划(批准号:20180101001JC)资助~~
