title: A CsPbBr3Perovskite Quantum Dot/Graphene Oxide Composite for Photocatalytic CO2Reduction.
abstract: Halide perovskite quantum dots (QDs), primarily regarded as optoelectronic materials for LED and photovoltaic devices, have not been applied for photochemical conversion (e.g., water splitting or CO2reduction) applications because of their insufficient stability in the presence of moisture or polar solvents. Herein, we report the use of CsPbBr3QDs as novel photocatalysts to convert CO2into solar fuels in nonaqueous media. Under AM 1.5G simulated illumination, the CsPbBr3QDs steadily generated and injected electrons into CO2, catalyzing CO2reduction at a rate of 23.7 μmol/g h with a selectivity over 99.3%. Additionally, through the construction of a CsPbBr3QD/graphene oxide (CsPbBr3QD/GO) composite, the rate of electron consumption increased 25.5% because of improved electron extraction and transport. This study is anticipated to provide new opportunities to utilize halide perovskite QD materials in photocatalytic applications.
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University , Guangzhou 510275, P. R. China.
authors.forename: Yang-Fan
authors.identifier: 0000-0002-4479-6157
authors.initials: YF
authors.lastname: Xu
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University , Guangzhou 510275, P. R. China.
authors.forename: Mu-Zi
authors.initials: MZ
authors.lastname: Yang
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University , Guangzhou 510275, P. R. China.
authors.forename: Bai-Xue
authors.initials: BX
authors.lastname: Chen
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University , Guangzhou 510275, P. R. China.
authors.forename: Xu-Dong
authors.initials: XD
authors.lastname: Wang
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University , Guangzhou 510275, P. R. China.
authors.forename: Hong-Yan
authors.initials: HY
authors.lastname: Chen
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University , Guangzhou 510275, P. R. China.
authors.forename: Dai-Bin
authors.identifier: 0000-0001-6773-2319
authors.initials: DB
authors.lastname: Kuang
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-sen University , Guangzhou 510275, P. R. China.
authors.forename: Cheng-Yong
authors.identifier: 0000-0003-3604-7858
authors.initials: CY
authors.lastname: Su