Bi2O3-Bi2WO6 Composite Microspheres: Hydrothermal Synthesis and Photocatalytic Performances

被引：240

作者：

Ge, Ming ^{[3
]}

Li, Yafei ^{[1
,2
]}

Liu, Lu ^{[3
]}

Zhou, Zhen ^{[1
,2
]}

Chen, Wei ^{[3
]}

机构：

[1] Nankai Univ, Inst New Energy Mat Chem, Tianjin 300071, Peoples R China

[2] Nankai Univ, Key Lab Adv Energy Mat Chem, Minist Educ, Tianjin 300071, Peoples R China

[3] Nankai Univ, Tianjin Key Lab Environm Remediat & Pollut Contro, Tianjin 300071, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 13期

关键词：

LIGHT-DRIVEN PHOTOCATALYSTS; BI2WO6; DEGRADATION; ENERGY; FABRICATION; ELECTRON; BETA-IN2S3; MOLECULES;

D O I：

10.1021/jp108414e

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：

Chrysanthemum-analogous Bi2O3-Bi2WO6 composite microspheres, assembled by nanosheets, were synthesized through a one-step hydrothermal route with the aid of surfactant templates. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were employed to clarify the structure and morphology of the Bi2O3-Bi2WO6 rnicrospheres. Nitrogen adsorption and desorption isotherms were conducted to examine the specific surface area and the pore nature of the as-prepared microspheres. The photocatalytic activity of the Bi2O3-Bi2WO6 composite microspheres was evaluated by using rhodamine B as a model contaminant, and over 99% of rhodamine B was degraded within 10 min under the exposure of sunlight. The Bi2O3-Bi2WO6 composite microspheres presented enhanced photocatalytic performances compared with separate Bi2O3, Bi2WO6, and conventional P25.

引用

页码：5220 / 5225

页数：6

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