Preparation of Cu2O/CeO2 heterojunction photocatalyst for the degradation of Acid Orange 7 under visible light irradiation

被引：166

作者：

Hu, Shichao

Zhou, Feng

Wang, Lingzhi ^{[1
]}

Zhang, Jinlong

机构：

[1] E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2011年 / 12卷 / 09期

关键词：

Cu2O; CeO2; Heterojunction; Photocatalyst; PHOTOOXIDATION; ADSORPTION; TITANIA; CEO2;

D O I：

10.1016/j.catcom.2011.01.027

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：

Cu2O/CeO2 heterojunction photocatalysts with different concentrations of Cu2O were prepared by a soak-reduction method using glucose as the reductant, and characterized by XRD, EDS, XPS and UV-vis DRS spectroscopy. The photocatalytic efficiency of the Cu2O/CeO2 composite was evaluated by degradation of Acid Orange 7 in water under visible light (lambda>420 nm) irradiation. The Cu2O/CeO2 composite showed stronger visible light absorption capacity and higher photocatalytic activity than pure CeO2. The sample with a Cu2O / CeO2 molar ratio of 0.029 presented the best photocatalytic activity, which was 20% higher than that of pure CeO2. (C) 2011 Elsevier B.V. All rights reserved.

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收藏

页码：794 / 797

页数：4

相关论文

共 13 条

[1] Bi2S3/TiO2 and CdS/TiO2 heterojunctions as an available configuration for photocatalytic degradation of organic pollutant [J].

Bessekhouad, Y ;

Robert, D ;

Weber, J .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2004, 163 (03) :569-580

[2] Mechanism of Silicate Platelet Self-Organization during Clay-Initiated Epoxy Polymerization [J].

Chan, Ying-Nan ;

Hsu, Ru-Siou ;

Lin, Jiang-Jen .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (23) :10373-10378

[3] Preparation, characterization and activity evaluation of p-n junction photocatalyst p-ZnO/n-TiO2 [J].

Chen Shifu ;

Zhao Wei ;

Liu Wei ;

Zhang Sujuan .

APPLIED SURFACE SCIENCE, 2008, 255 (05) :2478-2484

[4] Water photolysis reaction on cerium oxide photocatalysts [J].

Chung, KH ;

Park, DC .

CATALYSIS TODAY, 1996, 30 (1-3) :157-162

[5] Synthesis and characterization of nitrogen-doped TiO2 nanophotocatalyst with high visible light activity [J].

Cong, Ye ;

Zhang, Jinlong ;

Chen, Feng ;

Anpo, Masakazu .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (19) :6976-6982

[6] EPR study of the photoassisted formation of radicals on CeO2 nanoparticles employed for toluene photooxidation [J].

Hernández-Alonso, MD ;

Hungría, AB ;

Martínez-Arias, A ;

Fernández-García, M ;

Coronado, JM ;

Conesa, JC ;

Soria, J .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2004, 50 (03) :167-175

[7] Preparation of cuprous oxides with different sizes and their behaviors of adsorption, visible-light driven photocatalysis and photocorrosion [J].

Huang, Lei ;

Peng, Feng ;

Yu, Hao ;

Wang, Hongjuan .

SOLID STATE SCIENCES, 2009, 11 (01) :129-138

[8] Phthalocyanine-modified titania - catalyst for photooxidation of phenols by irradiation with visible light [J].

Iliev, V .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2002, 151 (1-3) :195-199

[9] Study of adsorption and degradation of acid orange 7 on the surface of CeO2 under visible light irradiation [J].

Ji, Pengfei ;

Zhang, Jinlong ;

Chen, Feng ;

Anpo, Masakazu .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 85 (3-4) :148-154

[10] Enhanced photocatalytic activity of Ce3+-TiO2 for 2-mercaptobenzothiazole degradation in aqueous suspension for odour control [J].

Li, FB ;

Li, XZ ;

Hou, MF ;

Cheah, KW ;

Choy, WCH .

APPLIED CATALYSIS A-GENERAL, 2005, 285 (1-2) :181-189