新型炭材料2011,Vol.26Issue(2):103-108,6.
磺化竹炭的制备、表征及其酸催化性能
The preparation, characterization and acidic catalytic function of sulfonated bamboo char
摘要
Abstract
Bamboo sawdust was soaked in phosphoric acid for 48-72h and bamboo char was obtained by pyrolysis of the soaked sawdust at 200 ℃ for 2h. The latter was treated at 100 ℃ for 2h in fuming sulfuric acid to produce sulfonated bamboo char. The results of XRD and FTIR showed that the product a solid amorphous material with polycyclic aromatic rings and acidic functional groups. The result of pyridine adsorption DRIFT showed that the surface acid sites were proton type. The amount of acid in sulfonated bamboo char was 2.02 mmol·g-1 as determined by ion exchange and titration. Sulfonated bamboo char had a good catalytic activity and can be reused in the acetalization of ethylene glycol with different aldehydes or ketones.关键词
竹/竹炭/磺化竹炭/表征/催化作用Key words
Bamboo/ Bamboo char/ Sulfonated bamboo char/ Characterization/ Catalytic function分类
化学化工引用本文复制引用
徐琼,夏悦,尹笃林,范长岭,徐仲榆..磺化竹炭的制备、表征及其酸催化性能[J].新型炭材料,2011,26(2):103-108,6.基金项目
国家自然科学基金(20572021,21003043),湖南省教育厅资助科研项目(10C0972). (20572021,21003043)