Facet-selective photodeposition of gold nanoparticles on faceted ZnO crystals for visible light photocatalysis

被引：27

作者：

Wang, Xuewen ^{[1
]}

Wang, Wuyou ^{[1
]}

Miao, Yuanquan ^{[1
]}

Feng, Gang ^{[1
]}

Zhang, Rongbin ^{[1
]}

机构：

[1] Nanchang Univ, Coll Chem, Inst Appl Chem, 999 Xuefu Rd, Nanchang 330031, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2016年 / 475卷

关键词：

ZnO; Polar facets; Gold; Plasmon; Photocatalysis; Visible light; SURFACE-PLASMON RESONANCE; SILVER NANOPARTICLES; CHARGE SEPARATION; HYDROGEN; TIO2; SHAPE; SIZE; HETEROSTRUCTURES; COCATALYSTS; SENSITIVITY;

D O I：

10.1016/j.jcis.2016.04.048

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：

Hexagonal prism-like ZnO crystals dominated with polar facets were synthesized using a hydrothermal method. The Gold (Au) nanoparticles were selectively photodeposited on the polar surfaces of faceted ZnO crystals as a result of anisotropic photocatalytic activities of the polar and nonpolar facets. The size of Au nanoparticles uniformly dispersed on the polar facets increased with increasing Au-loading amount. These Au-loaded ZnO crystals showed an additional visible light absorption band from 400 nm to 800 nm. The 0.1 wt% Au-loaded ZnO crystals with visible light absorption peak at approximately 690 nm exhibited the highest photocatalytic activity under visible light irradiation. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：112 / 118

页数：7

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