Effect of N2/Ar plasma treatment on the visible light photocatalytic activity of CuO/TiO2

被引：9

作者：

Luo, Zhengwei ^{[1
]}

Jiang, Hui ^{[1
]}

Hu, Longzhi ^{[1
]}

Li, Dan ^{[1
]}

Geng, Wenhua ^{[1
]}

Wei, Ping ^{[1
]}

机构：

[1] Nanjing Tech Univ, Coll Biotechnol & Pharmaceut Engn, Nanjing 211816, Jiangsu, Peoples R China

来源：

CHINESE JOURNAL OF CATALYSIS | 2014年 / 35卷 / 10期

关键词：

Titanium dioxide; Plasma; Modification; Nitrogen doping; Mercury; TITANIUM-DIOXIDE; OXYGEN VACANCY; TIO2; NITROGEN; PARTICLES; FILMS; IONS;

D O I：

10.1016/S1872-2067(14)60143-1

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The effect of N-2/Ar dielectric barrier discharge plasma on the photocatalytic activity of CuO/TiO2 under visible light irradiation was studied. The photocatalysts were characterized by X-ray diffraction, ultraviolet-visible spectrophotometry, transmission electron microscopy, X-ray photoelectron spectroscopy, and electron paramagnetic resonance spectroscopy. The plasma parameters including gas composition, treatment time, and plasma power were investigated. The activities of the plasma-treated photocatalysts were evaluated by the photodegradation of methyl orange under visible light illumination. The optimal operation conditions were N-2:Ar = 8:2, treatment time of 20 min, and a discharge current of 1.0 A. Simulated mercury-containing wastewater was treated by the photocatalysts. (C) 2014, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：1752 / 1760

页数：9

共 34 条

[1] Optical absorption by nanoparticles of Cu2O [J].

Banerjee, S ;

Chakravorty, D .

EUROPHYSICS LETTERS, 2000, 52 (04) :468-473

[2] Visible-light photocatalytic activity of anatase TiO2 treated with argon plasma [J].

Chae, Y. K. ;

Mori, S. ;

Suzuki, M. .

THIN SOLID FILMS, 2009, 517 (14) :4260-4263

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

Chen, Xiaobo ;

Mao, Samuel S. .

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

[4] Cu2O-Decorated Mesoporous TiO2 Beads as a Highly Efficient Photocatalyst for Hydrogen Production [J].

Cheng, Wei-Yun ;

Yu, Tsung-Hsuan ;

Chao, Kang-Ju ;

Lu, Shih-Yuan .

CHEMCATCHEM, 2014, 6 (01) :293-300

[5] N incorporation and electronic structure in N-doped TiO2(110) rutile [J].

Cheung, S. H. ;

Nachimuthu, P. ;

Joly, A. G. ;

Engelhard, M. H. ;

Bowman, M. K. ;

Chambers, S. A. .

SURFACE SCIENCE, 2007, 601 (07) :1754-1762

[6] The influence of the addition of argon gas to air DB discharge [J].

El-Zeer, D. M. ;

Dawood, N. ;

Elakshar, F. ;

Garamoon, A. A. .

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, 2012, 58 (03)

[7]

Harris D.C., 2010, Quantitative chemical analysis

[8] The influence of preparation method, nitrogen source, and post-treatment on the photocatalytic activity and stability of N-doped TiO2 nanopowder [J].

Hu, Shaozheng ;

Li, Fayun ;

Fan, Zhiping .

JOURNAL OF HAZARDOUS MATERIALS, 2011, 196 :248-254

[9] Effect of nitrogen-plasma surface treatment to the enhancement of TiO2 photocatalytic activity under visible light irradiation [J].

Huang, Chao-Ming ;

Chen, Lung-Chuan ;

Cheng, Kong-Wei ;

Pan, Guan-Ting .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2007, 261 (02) :218-224

[10] Efficient visible light-sensitive photocatalysts:: Grafting Cu(II) ions onto TiO2 and WO3 photocatalysts [J].

Irie, Hiroshi ;

Miura, Shuhei ;

Kamiya, Kazuhide ;

Hashimoto, Kazuhito .

CHEMICAL PHYSICS LETTERS, 2008, 457 (1-3) :202-205

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