Synthesis of Floriated BiOI Decorated with TiO2 Nanoparticles for Efficient Photocatalytic Activity Under Visible Light

被引：14

作者：

Chai, Bo ^{[1
]}

Xu, Qian ^{[1
]}

Li, Jing ^{[1
]}

Dai, Ke ^{[2
]}

机构：

[1] Wuhan Polytech Univ, Sch Chem & Environm Engn, Wuhan 430023, Peoples R China

[2] Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China

来源：

SCIENCE OF ADVANCED MATERIALS | 2014年 / 6卷 / 08期

基金：

中国国家自然科学基金;

关键词：

TiO2/BiOI Composites; p-n Junction; Photocatalytic Activity; LOW-TEMPERATURE SYNTHESIS; HETEROJUNCTION PHOTOCATALYST; HIGHLY EFFICIENT; DEGRADATION; HETEROSTRUCTURES; COMPOSITE;

D O I：

10.1166/sam.2014.1945

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The p-n junction photocatalysts TiO2/BiOI consisting of floriated BiOI decorated with TiO2 nanoparticles were synthesized by a facile one-pot solvothermal route using ethanol-water mixed solvent. The as-prepared TiO2/BiOI composites were characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), high-resolution transmission electron microscope (HRTEM), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance absorption spectra (DRS), nitrogen adsorption-desorption measurement and Photoluminescence spectra (PL). The TiO2/BiOI composites displayed much higher photocatalytic activities than that of pure BiOI and TiO2 for the degradation of Rhodamine B (RhB) under visible light irradiation. The significantly enhanced photocatalytic activity of TiO2/BiOI composite could be attributed to the formation of p-n junction between p-type BiOI and n-type TiO2, which effectively separates the photogenerated electron-hole pairs.

引用

页码：1806 / 1813

页数：8

共 27 条

[1] In situ preparation of novel p-n junction photocatalyst BiOI/(BiO)2CO3 with enhanced visible light photocatalytic activity [J].

Cao, Jing ;

Li, Xin ;

Lin, Haili ;

Chen, Shifu ;

Fu, Xianliang .

JOURNAL OF HAZARDOUS MATERIALS, 2012, 239 :316-324

[2] Graphitic carbon nitride (g-C3N4)-Pt-TiO2 nanocomposite as an efficient photocatalyst for hydrogen production under visible light irradiation [J].

Chai, Bo ;

Peng, Tianyou ;

Mao, Jing ;

Li, Kan ;

Zan, Ling .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 14 (48) :16745-16752

[3] Photocatalytic study of BiOCl for degradation of organic pollutants under UV irradiation [J].

Chen, Feng ;

Liu, Hongqi ;

Bagwasi, Segomotso ;

Shen, Xingxing ;

Zhang, Jinlong .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2010, 215 (01) :76-80

[4] Bi2O2CO3/BiOI Photocatalysts with Heterojunctions Highly Efficient for Visible-Light Treatment of Dye-Containing Wastewater [J].

Chen, Lang ;

Yin, Shuang-Feng ;

Luo, Sheng-Lian ;

Huang, Rui ;

Zhang, Qiang ;

Hong, Tao ;

Au, Peter C. T. .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2012, 51 (19) :6760-6768

[5] Preparation, characterization and activity evaluation of p-n junction photocatalyst p-CaFe2O4/n-ZnO [J].

Chen Shifu ;

Zhao Wei ;

Liu Wei ;

Zhang Huaye ;

Yu Xiaoling .

CHEMICAL ENGINEERING JOURNAL, 2009, 155 (1-2) :466-473

[6] Titanium dioxide nanomaterials: Synthesis, properties, modifications, and applications [J].

Chen, Xiaobo ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2007, 107 (07) :2891-2959

[7] Synthesis and Enhanced Visible-Light Photoelectrocatalytic Activity of p-n Junction BiOI/TiO2 Nanotube Arrays [J].

Dai, Gaopeng ;

Yu, Jiaguo ;

Liu, Gang .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (15) :7339-7346

[8] Cu2O/ZnO hetero-nanobrush: hierarchical assembly, field emission and photocatalytic properties [J].

Deo, Meenal ;

Shinde, Deodatta ;

Yengantiwar, Ashish ;

Jog, Jyoti ;

Hannoyer, Beatrice ;

Sauvage, Xavier ;

More, Mahendra ;

Ogale, Satishchandra .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (33) :17055-17062

[9] Design, Fabrication, and Modification of Nanostructured Semiconductor Materials for Environmental and Energy Applications [J].

Hu, Xianluo ;

Li, Guisheng ;

Yu, Jimmy C. .

LANGMUIR, 2010, 26 (05) :3031-3039

[10] Efficient Degradation of Benzene over LaVO4/TiO2 Nanocrystalline Heterojunction Photocatalyst under Visible Light Irradiation [J].

Huang, Hanjie ;

Li, Danzhen ;

Lin, Qiang ;

Zhang, Wenjuan ;

Shao, Yu ;

Chen, Yibin ;

Sun, Meng ;

Fu, Xianzhi .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (11) :4164-4168

← 1 2 3 →