Visible light-driven conversion of carboxylic acids into esters for enhanced algal bio-crude oil catalyzed by cadmium sulfide quantum dots (CdS-QDs)
文献类型： 外文期刊
作者： Wang, Shuang 1 ; Liu, Qian 1 ; Lu, Ziyang 2 ; Xu, Lingyan 1 ; Liu, Xinlin 1 ; Hu, Yamin 1 ; Qian, Lili 1 ; Xu, Shannan 3 ; A 1 ;
作者机构： 1.Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Jiangsu, Peoples R China
2.Jiangsu Univ, Sch Environm & Safety Engn, Zhenjiang 212013, Jiangsu, Peoples R China
3.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Peoples R China
4.Chengdu Univ, Sch Architecture & Civil Engn, Dept Environm Engn, Chengdu 610106, Peoples R China
5.Tanta Univ, Fac Sci, Bot Dept, Tanta 31527, Egypt
关键词： CdS-QDs; Photocatalytic; Algal biocrude oil; Acids; Esters
期刊名称：FUEL PROCESSING TECHNOLOGY （ 影响因子：7.033； 五年影响因子：5.806 ）
ISSN： 0378-3820
年卷期： 2021 年 216 卷
页码：
收录情况： SCI
摘要： This study investigated the application of cadmium sulfide quantum dots (CdS-QDs) as a photocatalyst to catalyze the conversion of carboxylic acids in the algal bio-crude oil into esters via visible light. The synthesized catalyst was characterized by SEM, TEM, BET, Raman, DRS, PL, and TG-DTA. The analysis of the algal bio-crude oil before and after photocatalytic reaction by gas chromatography-mass spectrometry showed significant composition changes. The relative content of esters in algal bio-crude oil significantly increased from 17.22% to 47.92%, whereas the relative content of acids significantly reduced. The photocatalyst could selectively stimulate the cleavage of C-O linkages in carboxylic acids, leading to the generation of acyl radicals, and ultimately improved the relative content of esters.
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