表面配体去除和富镉的 CdSe 量子点高效光催化 CO 转化为 CO。
Highly Efficient Photocatalytic Conversion of CO to CO Catalyzed by Surface-Ligand-Removed and Cd-Rich CdSe Quantum Dots.
机构信息
Key Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P.R. China.
Department of Chemistry, Shantou University, Shantou, 515063, P.R. China.
出版信息
ChemSusChem. 2019 Oct 21;12(20):4617-4622. doi: 10.1002/cssc.201901633. Epub 2019 Sep 24.
Surface ligand-removed and Cd-rich CdSe quantum dots (QDs) exhibited exceptional activity as photocatalyst for the conversion of CO to CO. A CO production rate up to 789 mmol g h was achieved in a triethylamine/dimethylformamide mixture under visible-light irradiation. Mechanistic studies revealed that improving the Cd/Se stoichiometric ratio and exposing more active surface Cd atoms significantly enhanced the activity of CdSe QDs for CO photoreduction.
表面配体去除和富镉的 CdSe 量子点 (QDs) 表现出作为 CO 光催化转化为 CO 的光催化剂的优异活性。在可见光照射下，在三乙胺/二甲基甲酰胺混合物中，CO 的生成速率高达 789mmol·g^-1·h^-1。机理研究表明，提高 Cd/Se 化学计量比并暴露更多的活性表面 Cd 原子显著提高了 CdSe QDs 对 CO 光还原的活性。
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