Enhanced photocatalytic performances of cocrystalline TiO2 nanoblossoms by the effect of nanoscale p-n junctions

被引：1

作者：

Lee, Daeki ^{[1
]}

Kim, Hyung-Bae ^{[1
]}

Jang, Du-Jeon ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Chem, Seoul 151747, South Korea

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2013年 / 16卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

TiO2; nanoblossoms; Cocrystalline; Nanoscale p-n junction; Reaction retardation; Photocatalysis; Three-dimensional nanostructure; LOW-TEMPERATURE SYNTHESIS; HYDROTHERMAL SYNTHESIS; OPTICAL-PROPERTIES; AQUEOUS-SOLUTION; ANATASE; ARRAYS; PHASE; RADICALS; PHOTOLUMINESCENCE; CRYSTALLIZATION;

D O I：

10.1007/s11051-013-2187-z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cocrystalline TiO2 nanoblossoms having enhanced photocatalytic activities have been facilely grown via a one-step solvothermal process on titanium foil in mixed solvents of water and ethylene glycol. By varying the volume ratio of two solvents, we have controlled the morphological, the structural, and the optical properties of TiO2 nanoblossoms. Our prepared TiO2 nanoblossoms have been found to have both the anatase and the rutile crystal structures acting as nanoscale p-n junctions, which help to enhance catalytic performances via forming inner electric fields. In particular, TiO2 nanoblossoms grown in the 1:1 volume mixture of water and ethylene glycol have been found to have the best-defined nanoscale p-n junctions, showing the best photocatalytic activity consequentially.

引用

页数：11

共 57 条

[1] Room Temperature One-Step Polyol Synthesis of Anatase TiO2 Nanotube Arrays: Photoelectrochemical Properties [J].