无机材料学报2016，Vol.31Issue(7)：731-738,8.DOI:10.15541/jim20150567
硫化物负载ZnO/ZnAl2O4复合空心球及其光催化还原CO2
Photocatalytic Reduction of CO2 over Sulfied-Loaded ZnO/ZnAl2O4 Composite Hollow Sphere
摘要
Abstract
ZnO/ZnAl2O4 nanocomposites were successfully synthetized by a facile one-pot hydrothermal process. CuS, CdS and Bi2S3 were loaded on the ZnO/ZnAl2O4by an impregnation process to investigate their photocatalytic activi-ties under simulated sunlight irradiation. The as-prepared samples were characterized by XRD, SEM, TEM, BET and FLtechniques. Meanwhile, photocatalytic reduction of CO2 from water over the samples was explored using NaOH and Na2SO3 as sacrificial reagents.The effects of the type and the amount of sulfideson photocatalytic reduction effi-ciency were investigated. The results indicated that Bi2S3-loading lowered down the photocatalytic activity of ZnO/ZnAl2O4, while CuS or CdS loading enhanced the photocatalytic activity. After ZnO/ZnAl2O4 loaded with 1wt% CuS, the maximum yield of 8.21 mmol/gcat methanol within 6 h was obtained, which increased by up to 3.2 times as compared to ZnO/ZnAl2O4under the same conditions. The photocatalytic mechanism of the as-prepared CuS/ZnO/ZnAl2O4were preliminarily discussed.关键词
ZnO/ZnAl2O4/硫化物/光催化还原CO2Key words
ZnO/ZnAl2O4/sulfide/photocatalytic reduction of CO2分类
化学引用本文复制引用
张丽,张秀秀,戴超华,欧阳杰,阎建辉..硫化物负载ZnO/ZnAl2O4复合空心球及其光催化还原CO2[J].无机材料学报,2016,31(7):731-738,8.基金项目
国家自然科学青年基金(21306041) （21306041）
国家自然科学基金(21271071) （21271071）
湖南省教育厅重点项目(15A076) National Natural Science Young Foundation of China(21306041) （15A076）
National Natural Science Foundation of China(21271071) （21271071）
Scientific Research Foundation of Hunan Provincial Education Department of China (15A076) （15A076）
