文献类型：期刊文献

英文题名：Embedded ionic liquid modified ZIF-8 in CaMgAl hydrotalcites for bio-glycerol transesterification

作者：Liu, Guanhao[1];Yang, Jingyi[1];Zhao, Yibo[1];Xu, Xinru[1]

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

年份：2022

卷号：12

期号：7

起止页码：4408

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20220711629509);WOS:【SCI-EXPANDED(收录号:WOS:000750463400001)】；

语种：英文

外文关键词：Calcium alloys - Transesterification - Ternary alloys - Gas adsorption - Aluminum alloys - Carbonation - Magnesium alloys - Ionic liquids

摘要：Novel modified MOF intercalated hydrotalcites was synthesized for catalyzing the conversion of glycerol into high value-added glycerol carbonate in this paper. [APmim]OH/ZIF-8 was prepared by encapsulating aminopropyl hydroxide imidazole ionic liquid in ZIF-8 and inserted in Ca-Mg-Al hydrotalcites with layered structures to prepare [APmim]OH/ZIF-8/LDH with strong basicity and high specific surface area. ZIF-8, [APmim]OH/ZIF-8 and [APmim]OH/ZIF-8/LDH were characterized by XRD, FT-IR, SEM and nitrogen adsorption-desorption. The results showed that the conversion rate of glycerol can reach 98.6% and the glycerol carbonate yield was 96.5% in the transesterification of glycerol with dimethyl carbonate catalyzed by [APmim]OH/ZIF-8/LDH when the molar ratio of DMC and glycerol was 3 : 1, the catalyst dosage was 3 wt%, the reaction temperature was 75 degrees C and the reaction time was 80 minutes. The glycerol conversion rate can still reach more than 90% after five reaction cycles.