文献类型：期刊文献

英文题名：Preparation of a novel bentonite intercalation composite by changing the chemical state of aluminum

作者：Peng, Qian[1];Kong, Decun[1];Shi, Li[1];Wang, Xin[1];Meng, Xuan[1];Liu, Naiwang[1]

机构：[1]East China Univ Sci & Technol, Int Joint Res Ctr Green Energy Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2020

卷号：67

期号：6

起止页码：1009

外文期刊名：JOURNAL OF THE CHINESE CHEMICAL SOCIETY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000507898700001)】；

基金：Explore and Research Foundation for Youth Scholars of Ministry of Education of China, Grant/Award Number: 222201814011; China Postdoctoral Science Foundation, Grant/Award Number: 2017M621389; National Natural Science Foundation of China, Grant/Award Number: 21808054; Science and Technology Commission of Shanghai Municipality, Grant/Award Number: 18YF1406300

语种：英文

外文关键词：bentonite; alumina sol; alkylation; extra-framework aluminum

摘要：A new environment-friendly bentonite intercalation composite was successfully obtained from alumina sol intercalation. This process used industrial grade pseudo boehmite as the aluminum source and provided with the advantage of zero emission of acidic wastewater. The bentonite intercalation composite was investigated by XRF, ICP, XRD, FT-IR, BET, and pyridine-FTIR. Results indicated that the basal spacing was enlarged from 14.72 to 15.60 angstrom; the specific surface area increased by 128%; and the total acid content increased from 65.32 to 245.76 mu mol/g. The catalytic activity of this composite was tested by alkylation of aromatics with olefins. The results show that the weak Lewis acid generated by extra-framework aluminum and specific surface area play a decisive role, while weak Bronsted acid site is not the active site for this alkylation reaction.