Carbon Quantum Dot/Silver Nanoparticle/Polyoxometalate Composites as Photocatalysts for Overall Water Splitting in Visible Light

被引：72

作者：

Liu, Juan ^{[1
,2
]}

Zhang, Hengchao ^{[1
,2
]}

Tang, Di ^{[1
,2
]}

Zhang, Xing ^{[1
,2
]}

Yan, Likai ^{[3
]}

Han, Yuzhi ^{[1
,2
]}

Huang, Hui ^{[1
,2
]}

Liu, Yang ^{[1
,2
]}

Kang, Zhenhui ^{[1
,2
]}

机构：

[1] Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Jiangsu, Peoples R China

[2] Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Suzhou 215123, Jiangsu, Peoples R China

[3] NE Normal Univ, Inst Funct Mat Chem, Fac Chem, Changchun 130024, Peoples R China

来源：

CHEMCATCHEM | 2014年 / 6卷 / 09期

基金：

中国国家自然科学基金;

关键词：

photochemistry; polyoxometalates; quantum dots; silver; water splitting; HIGHLY EFFICIENT; PLASMONIC PHOTOCATALYST; HYDROGEN-PRODUCTION; OXYGEN EVOLUTION; CHARGE-TRANSFER; GRAPHENE OXIDE; POLYOXOMETALATE; IRRADIATION; SEMICONDUCTOR; METAL;

D O I：

10.1002/cctc.201402227

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The design of photocatalysts for overall water splitting in visible light remains a huge challenge. Carbon quantum dots (CQDs)/Ag/Ag3PW12O40 nanocomposites have high photocatalytic activities for overall water splitting in visible light without electron acceptors or hole scavengers. In the present system, H-2 evolution was performed on Ag particles. O-2 evolution appears to be a result of the oxidation of H2O on the valence band of Ag3PW12O40, which is enhanced by promoted electron-transfer events at hybrid interfaces of the polyoxometalates and CQDs. The synergistic effects of CQDs, Ag, and Ag3PW12O40 enable the design of a water-splitting catalyst with a remarkably improved efficiency (with an active region of <650nm; apparent quantum yield approximate to 4.9% at 480nm) and operational stability.

引用

页码：2634 / 2641

页数：8

共 50 条

[1] Design and Development of Oxynitride Photocatalysts for Overall Water Splitting under Visible Light Irradiation
Takata, Tsuyoshi
Pan, Chengsi
Domen, Kazunari
CHEMELECTROCHEM, 2016, 3 (01): : 31 - 37
[2] Recent progress of visible-light-driven heterogeneous photocatalysts for overall water splitting
Yamasita, D
Takata, T
Hara, M
Kondo, JN
Domen, K
SOLID STATE IONICS, 2004, 172 (1-4) : 591 - 595
[3] Hedgehog Zinc Oxide-Graphene Quantum Dot Heterostructures as Photocatalysts for Visible-Light-Driven Water Splitting
Le, Thi Kieu Oanh
Mapari, Mitesh Ganpat
Kim, TaeYoung
ACS OMEGA, 2024, 9 (39): : 40790 - 40800
[4] Carbon dot and BiVO4 quantum dot composites for overall water splitting via a two-electron pathway
Wu, Xiuqin
Zhao, Juan
Guo, Sijie
Wang, Liping
Shi, Weilong
Huang, Hui
Liu, Yang
Kang, Zhenhui
NANOSCALE, 2016, 8 (39) : 17314 - 17321
[5] New non-oxide photocatalysts designed for overall water splitting under visible light
Maeda, Kazuhiko
Domen, Kazunari
JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (22): : 7851 - 7861
[6] New Tantalum (oxy)nitride photocatalysts designed for overall water splitting under visible light
Ho, Chiun-Teh
Randall, Meyer J.
Snee, Preston T.
Low, Ke-bin
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2010, 240
[7] On topological materials as photocatalysts for water splitting by visible light
Ranjbar, Ahmad
Mirhosseini, Hossein
Kuehne, Thomas D.
JOURNAL OF PHYSICS-MATERIALS, 2022, 5 (01):
[8] Nitrogen-Doped Graphene Oxide Quantum Dots as Photocatalysts for Overall Water-Splitting under Visible Light Illumination
Yeh, Te-Fu
Teng, Chiao-Yi
Chen, Shean-Jen
Teng, Hsisheng
ADVANCED MATERIALS, 2014, 26 (20) : 3297 - +
[9] Particulate photocatalysts for light-driven overall water splitting
Wu C.
Liu Y.
Yang X.
Cui J.
Jiang S.
Ye J.
Liu L.
Huagong Jinzhan/Chemical Industry and Engineering Progress, 2024, 43 (04): : 1810 - 1822
[10] Theoretical design of two-dimensional visible light-driven photocatalysts for overall water splitting
Fu, Cen-Feng
Wu, Xiaojun
Yang, Jinlong
CHEMICAL PHYSICS REVIEWS, 2022, 3 (01):

← 1 2 3 4 5 →