期刊
NATURE COMMUNICATIONS
卷 9, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-018-04020-2
关键词
-
资金
- National Natural Science Foundation of China [U1463204, 21173045]
- Award Program for Minjiang Scholar Professorship
- NSF of Fujian Province for Distinguished Young Investigator Rolling Grant [2017J07002]
- Independent Research Project of State Key Laboratory of Photocatalysis on Energy and Environment [2014A05]
- 1st Program of Fujian Province for Top Creative Young Talents
- Program for Returned High-Level Overseas Chinese Scholars of Fujian province
- Ministry of Science and Technology, Taiwan [MOST 106-2119-M-002-031]
Recently, loading ligand-protected gold (Au) clusters as visible light photosensitizers onto various supports for photoredox catalysis has attracted considerable attention. However, the efficient control of long-term photostability of Au clusters on the metal-support interface remains challenging. Herein, we report a simple and efficient method for enhancing the photostability of glutathione-protected Au clusters (Au GSH clusters) loaded on the surface of SiO2 sphere by utilizing multifunctional branched poly-ethylenimine (BPEI) as a surface charge modifying, reducing and stabilizing agent. The sequential coating of thickness controlled TiO2 shells can further significantly improve the photocatalytic efficiency, while such structurally designed core-shell SiO2-Au GSH clusters-BPEI@TiO2 composites maintain high photostability during longtime light illumination conditions. This joint strategy via interfacial modification and composition engineering provides a facile guideline for stabilizing ultrasmall Au clusters and rational design of Au clusters-based composites with improved activity toward targeting applications in photoredox catalysis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据