One-pot synthesis of hierarchical Cu2O/Cu hollow microspheres with enhanced visible-light photocatalytic activity

被引：14

作者：

Hong, Tianjie ^{[1
]}

Tao, Feifei ^{[1
]}

Lin, Jiudong ^{[1
]}

Ding, Wei ^{[1
]}

Lan, Mingxuan ^{[1
]}

机构：

[1] Shaoxing Univ, Dept Chem & Chem Engn, Shaoxing 312000, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2015年 / 228卷

基金：

中国国家自然科学基金;

关键词：

Hollow microspheres; Hierarchical structures; Photocatalysis; CUPROUS-OXIDE; FABRICATION; REDUCTION; NANOSTRUCTURES; NANOPARTICLES; METHANOL; FILMS; CO2;

D O I：

10.1016/j.jssc.2015.04.031

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The hierarchical Cu2O/Cu hollow microspheres have been fabricated by the one-pot solvothermal redox method, which is one-step approach without any surfactant and template. By using the HRTEM, XRD, XPS and UV-vis spectroscopy, the as-prepared product is composed of Cu2O and Cu with energy band gap of 1.72 eV. Based on the time-dependent experiments, the content of Cu2O and Cu compositions can be effectively controlled by adjusting the reaction time and a possible mechanism is proposed. In addition, using various dye molecules to stimulate pollutants, the hierarchical Cu2O/Cu hollow microspheres reacted for 8 h exhibit excellent visible-light photocatalytic activities, which is much higher than those of the Cu2O/Cu catalysts formed at the shorter reaction time, commercial Cu2O powder and the mixture of alone Cu2O and Cu. This enhanced photocatalytic performance makes these hierarchical Cu2O/Cu hollow microspheres a kind of efficient visible-light photocatalyst in removing some organic compounds in wastewater. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：174 / 182

页数：9

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