材料科学
光催化
纳米线
异质结
量子点
纳米材料
纳米技术
半导体
载流子
波段图
纳米晶
光电子学
催化作用
生物化学
化学
作者
Zhiping Zeng,Yibo Yan,Jie Chen,Ping Zan,Qinghua Tian,Peng Chen
标识
DOI:10.1002/adfm.201806500
摘要
Abstract MXene quantum dots (QDs) are emerging 0D nanomaterials. Here, a new heterostructure is developed based on a 1D photoactive semiconductor and a 0D MXene QD for improved photocatalytic reduction of CO 2 into methanol. Specifically, Ti 3 C 2 QDs are incorporated onto Cu 2 O nanowires (NWs) through a simple self‐assembly strategy. It is demonstrated that Ti 3 C 2 QDs not only significantly improve the stability of Cu 2 O NWs but also greatly improve their photocatatlytic performance by enhancing charge transfer, charge transport, carrier density, light adsorption, as well as by decreasing band bending edge and charge recombination. The energy level diagram derived from both experimental measurements and theoretical calculations provide further insights of such hierarchical photocatalysis system.
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