苏州科技大学学报（自然科学版）2018，Vol.35Issue(1)：50-55,6.DOI:10.12084/j.issn.2096-3289.2018.01.010
石墨烯增强Ce0.9881Y0.0119O2光催化还原CO2
Photocatalytic activities of Ce0.9881Y0.0119O2enhanced by reduced graphene oxide for CO2reduction
摘要
Abstract
A series of CeO2composites doped with yttrium and loaded with reduced graphene oxide were pre-pared by hydrothermal method.The crystal structures,morphologies and surface physicochemical properties of the as-prepared samples were characterized by X-ray diffraction(XRD),transmission electron microscope(TEM), Raman spectroscopy,ultraviolet/visible diffuse reflection(UV-Vis DRS)spectroscopy,X-ray photoelectron spec-troscopy(XPS). Doping with yttrium and loading with reduced graphene oxide make the red shift of response spectrum from 392 nm to 446 nm. The photocatalytic activities of the samples were evaluated by reducing CO 2to methanol. The results indicate that the reduction yield of CO2to methanol approaches 111.6 μmol·g-1cat.·h-1for Ce0.9811Y0.0119O2in 5 h,whereas methanol is detected little for the bare CeO2without Y3+and graphene oxide.Final-ly,the reaction mechanism was explored.关键词
石墨烯/氧化铈/钇掺杂/二氧化碳光催化还原Key words
graphene/CeO2/Y-doped/photocatalytic CO2reduction分类
化学化工引用本文复制引用
时圣杰,刘守清,陈志刚,刘成宝,陈丰..石墨烯增强Ce0.9881Y0.0119O2光催化还原CO2[J].苏州科技大学学报（自然科学版）,2018,35(1):50-55,6.基金项目
国家自然科学基金资助项目(21576175 （）
21277094) （）
江苏省高校自然科学基金重大项目(12KJA430005) （12KJA430005）
