Self-Z-scheme plasmonic tungsten oxide nanowires for boosting ethanol dehydrogenation under UV-visible light irradiation

被引：25

作者：

Lu, Changhai ^{[1
]}

Li, Juan ^{[1
]}

Chen, Guanying ^{[1
]}

Li, Baojun ^{[1
]}

Lou, Zaizhu ^{[1
]}

机构：

[1] Jinan Univ, Inst Nanophoton, Guangzhou 511443, Guangdong, Peoples R China

来源：

NANOSCALE | 2019年 / 11卷 / 27期

基金：

中国国家自然科学基金;

关键词：

HYDROGEN GENERATION; RESONANCE; NANOCRYSTALS; CO2; PHOTOCATALYST; ACETALDEHYDE; CONVERSION; CATALYSTS;

D O I：

10.1039/c9nr03741a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nonstoichiometric tungsten oxides (WO3-x) with abundant oxygen vacancies were synthesized and used as nonmetallic plasmonic photocatalysts to promote ethanol dehydrogenation under UV-visible light irradiation. Plasmonic WO3-x have unique electronic structures that act as Z-scheme heterostructures. UV-excited photoelectrons were injected into the conduction band of WO3-x, stabilizing the free electron density and boosting plasmonic hot electron generation for ethanol dehydrogenation. The synergetic effect of UV and visible light excitations greatly enhances the aldehyde generation to 2696 mu mol g(-1) (3 hours) with a high selectivity of 91%, which is 74-fold and 12-fold higher than those obtained under only UV or visible light irradiation, respectively.

引用

页码：12774 / 12780

页数：7

共 46 条

[41] A Nonmetal Plasmonic Z-Scheme Photocatalyst with UV- to NIR-Driven Photocatalytic Protons Reduction [J].

Zhang, Zhenyi ;

Huang, Jindou ;

Fang, Yurui ;

Zhang, Mingyi ;

Liu, Kuichao ;

Dong, Bin .

ADVANCED MATERIALS, 2017, 29 (18)

[42] Anti-EGFR Peptide-Conjugated Triangular Gold Nanoplates for Computed Tomography/Photoacoustic Imaging-Guided Photothermal Therapy of Non-Small Cell Lung Cancer [J].

Zhao, Ying ;

Liu, Wenfei ;

Tian, Ying ;

Yang, Zhenlu ;

Wang, Xiaofen ;

Zhang, Yunlei ;

Tang, Yuxia ;

Zhao, Shuang ;

Wang, Chunyan ;

Liu, Ying ;

Sun, Jing ;

Teng, Zhaogang ;

Wang, Shouju ;

Lu, Guangming .

ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (20) :16992-17003

[43] Plasmonic Cu2-xS Nanocrystals: Optical and Structural Properties of Copper-Deficient Copper(I) Sulfides [J].

Zhao, Yixin ;

Pan, Hongcheng ;

Lou, Yongbing ;

Qiu, Xiaofeng ;

Zhu, JunJie ;

Burda, Clemens .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (12) :4253-4261

[44] Plasmon-Enhanced Formic Acid Dehydrogenation Using Anisotropic Pd-Au Nanorods Studied at the Single-Particle Level [J].

Zheng, Zhaoke ;

Tachikawa, Takashi ;

Majima, Tetsuro .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (02) :948-957

[45] Effects of tunable acidity and basicity of Nb-KIT-6 catalysts on ethanol conversion: Experiments and kinetic modeling [J].

Zhu, Hongda ;

Chaudhari, Raghunath V. ;

Subramaniam, Bala ;

Ramanathan, Anand ;

Wu, Jian-Feng .

AICHE JOURNAL, 2017, 63 (07) :2888-2899

[46] Z-Scheme Photocatalytic Water Splitting on a 2D Heterostructure of Black Phosphorus/Bismuth Vanadate Using Visible Light [J].

Zhu, Mingshan ;

Sun, Zhichao ;

Fujitsuka, Mamoru ;

Majima, Tetsuro .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2018, 57 (08) :2160-2164

← 1 2 3 4 5 →