Microwave-assisted solution-phase preparation of flower-like Bi2WO6 and its visible-light-driven photocatalytic properties

被引：95

作者：

Cao, Xiao-Feng ^{[1
]}

Zhang, Lei ^{[1
]}

Chen, Xue-Tai ^{[1
]}

Xue, Zi-Ling ^{[2
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing Natl Lab Microstruct, Nanjing 210093, Peoples R China

[2] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

来源：

CRYSTENGCOMM | 2011年 / 13卷 / 01期

基金：

美国国家科学基金会;

关键词：

HYDROTHERMAL SYNTHESIS; ENHANCED PHOTOACTIVITY; ORGANIC CONTAMINANTS; RHODAMINE-B; DEGRADATION; DECOMPOSITION; CONDUCTORS; MORPHOLOGY;

D O I：

10.1039/c0ce00031k

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

We report here the preparation of flower-like Bi2WO6 via a simple, rapid, microwave-assisted solution-phase process. Powder X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), field emission scanning electron microscopy (FE-SEM) and high resolution transmission electron microscopy (HRTEM) were employed to characterize the phase and morphologies of the products. The time-dependent experiments showed an Ostwald ripening mechanism in the crystal growth process. The as-prepared Bi2WO6 was able to efficiently degrade Rhodamine B (RhB) under visible light irradiation. Calcination was found to decrease the photocatalytic performance of flower-like Bi2WO6.

引用

页码：306 / 311

页数：6

共 47 条

[1]

Preparation and characterization of bismuth tungstate polycrystalline flake-ball particles for photocatalytic reactions [J].