Synergetic Enhancement of Light Harvesting and Charge Separation over Surface-Disorder-Engineered TiO2 Photonic Crystals

被引：216

作者：

Cai, Jinmeng ^{[1
,2
]}

Wu, Moqing ^{[1
,2
]}

Wang, Yating ^{[1
,2
]}

Zhang, Hao ^{[1
,2
]}

Meng, Ming ^{[1
,2
]}

Tian, Ye ^{[1
,2
]}

Li, Xingang ^{[1
,2
]}

Zhang, Jing ^{[3
]}

Zheng, Lirong ^{[3
]}

Gong, Jinlong ^{[1
,4
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Tianjin Key Lab Appl Catalysis Sci & Engn, Tianjin 300072, Peoples R China

[3] Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China

[4] Tianjin Univ, Key Lab Green Chem Technol, Minist Educ, Tianjin 300072, Peoples R China

来源：

CHEM | 2017年 / 2卷 / 06期

基金：

中国国家自然科学基金;

关键词：

TITANIUM-DIOXIDE NANOPARTICLES; CORE-SHELL NANOPARTICLES; BLACK TIO2; NANOBELT HETEROSTRUCTURES; PHOTOCATALYTIC PROPERTIES; GOLD NANOPARTICLES; HYDROGEN EVOLUTION; CATALYTIC-ACTIVITY; WATER; ABSORPTION;

D O I：

10.1016/j.chempr.2017.05.006

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Solar light harvesting and charge separation are both critical to the solar-to-energy conversion in photocatalysis, but it is difficult to simultaneously achieve both in a single-component material. This paper describes the design and synthesis of dual-functional surface-disorder-engineered titanium dioxide photonic crystals (TiO2 PCs) for efficient solar light harvesting and charge separation in photocatalytic hydrogen evolution. The slow photon effect of TiO2 PCs enhances the photon-matter interaction to increase light harvesting, and the disorder-engineered surface layer can form band tail states and trap centers to promote the separation and inhibit the recombination of charge carriers. The synergetic enhancement of light harvesting and charge separation in this single-component material leads to a high performance toward photocatalytic hydrogen evolution. This approach provides a promising strategy for designing dual-functional materials with a high solar-to-energy conversion efficiency for various photocatalytic processes.

引用

页码：877 / 892

页数：16

共 58 条

[1] Pt Nanoparticles Embedded in Colloidal Crystal Template Derived 3D Ordered Macroporous Ce0.6Zr0.3Y0.1O2: Highly Efficient Catalysts for Methane Combustion [J].