Cathodic electrophoretic deposition of bismuth oxide (Bi2O3) coatings and their photocatalytic activities

被引：46
作者：
Guo, Xiaogang [1 ]
Li, Xueming [1 ]
Lai, Chuan [2 ]
Li, Wulin [1 ,3 ]
Zhang, Daixiong [1 ]
Xiong, Zhongshu [4 ]
机构：
[1] Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
[2] Sichuan Univ Arts & Sci, Sch Chem & Chem Engn, Dazhou 635000, Peoples R China
[3] Chongqing Univ, Educ Minist China, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China
[4] Chongqing Normal Univ, Sch Foreign Languages & Literature, Chongqing 401331, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2015年 / 331卷
基金：
中国国家自然科学基金;
关键词：
Cathodic electrophoretic deposition; Bismuth oxide; Coatings; Kinetics; Photocatalytic activities; THIN-FILMS; FACILE FABRICATION; PERFORMANCE; COMPOSITE; DEGRADATION; SURFACES; AFM;
D O I：
10.1016/j.apsusc.2015.01.034
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：
In this study, cathodic electrophoretic deposition (EPD), a low cost, one-step and flexible method, has been successfully developed to prepare bismuth oxide (Bi2O3) coatings. Stable suspensions consisted of isopropyl alcohol and trace additive-polyethyleneimine. Deposition was achieved on the cathode at applied field strengths of 5-25 V mm(-1)using a total solids loading of 0.5-2 g L(-1)at ambient temperature and pressure. The deposition mechanism of Bi(2)O(3)coatings was firstly given, and deposition kinetics were investigated in detail. The deposits were characterized qualitatively by field emission scanning electron microscope (FESEM) and energy dispersive spectroscopy (EDS) observation, atomic force microscope( AFM), X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET) analysis, respectively. Moreover, the photocatalytic activities of obtained coatings were evaluated through degradation of Rhodamine B under ultraviolet and visible light irradiation. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：455 / 462
页数：8
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