光热治疗
材料科学
光催化
金属有机骨架
金属
光热效应
纳米技术
氢
光化学
化学工程
冶金
物理化学
有机化学
催化作用
吸附
化学
工程类
作者
Shiqi Zhang,Lerong Lu,Jialong Jiang,Ning Liu,Bin Zhao,Min Xu,Peng Cheng,Wei Shi
标识
DOI:10.1002/adma.202403464
摘要
Effective combination of the photosensitivity and photothermal property in photocatalyst is vital to achieve the maximum light utilization for superior photocatalytic efficiency. Herein, this work successfully organizes photosensitive Cd-NS single-sites and photothermal Ni-NS single-sites uniformly at a molecular level within a tailored trimetallic metal-organic framework. The optimized Ho6-Cd0.76Ni0.24-NS exhibits a superior photocatalytic hydrogen evolution rate of 40.06 mmol g-1 h-1 under visible-light irradiation and an apparent quantum efficiency of 29.37% at 420 nm without using cocatalysts or photosensitizers. A systematical mechanism study reveals that the uniformly organized photosensitive and photothermal single-sites have synergistic effect, which form ultrashort pathways for efficient transport of photoinduced electrons, suppress the recombination of photogenerated charge carriers, hence promote the hydrogen evolution activity. This work provides a promising approach for organizing dual-functional single-sites uniformly in photocatalyst for high-performance photocatalytic activity.
科研通智能强力驱动
Strongly Powered by AbleSci AI