文献类型：期刊文献

英文题名：Synthesis of Novel Magnetic Carbon Microtube-Based Solid Acid and Its Catalytic Activities for Biodiesel Synthesis

作者：Jiang, Huijun[1];Dong, Xiaoqiu[1];Shou, Jianxin[1]

机构：[1]Shaoxing Univ, Coll Life Sci, Shaoxing 312000, Peoples R China

年份：2022

卷号：12

期号：3

外文期刊名：CATALYSTS

收录：SCI-EXPANDED(收录号：WOS:000775753500001)、、Scopus(收录号：2-s2.0-85126044324)、WOS

基金：This research was funded by the Natural Science Foundation of Zhejiang province, grant number LY16B070004.

语种：英文

外文关键词：magnetic carbon microtube-based solid acid; willow catkin; biodiesel synthesis

外文摘要：Novel magnetic carbon microtube-based solid acid was synthesized via the carbonization of FeCl3-doped willow catkin and benzenediazoniumsulfonate acid-based sulfonation. The biomass willow catkin provided the special microtube structure and the high surface area of 215 m(2)/g for the novel solid acid. The microtube structure was well conserved during the mild carbonization (400 degrees C) and sulfonation process. The large number of acidic sites (2.3 mmol/g) on the microtube surface was quite accessible to reactants. Its magnetic properties offered a simple separation process. The novel solid acid showed very high activity for biodiesel synthesis, using cooking oils as raw material, which gave a total yield of 99% and free fatty acid conversion of 98.7% under mild conditions (70 degrees C). The facile synthetic process, high activity, high stability, and high recovery simplicity were the main properties of the novel magnetic solid acid, which is one of the best choices for biodiesel synthesis.