Microwave-assisted synthesis of nanoparticulate perovskite LaFeO3 as a high active visible-light photocatalyst

被引：144

作者：

Tang, Peisong ^{[1
]}

Tong, Yi ^{[1
]}

Chen, Haifeng ^{[1
]}

Cao, Feng ^{[1
]}

Pan, Guoxiang ^{[1
]}

机构：

[1] Huzhou Teachers Coll, Dept Chem, Huzhou 313000, Peoples R China

来源：

CURRENT APPLIED PHYSICS | 2013年 / 13卷 / 02期

关键词：

LaFeO3; Visible light; Photocatalysis; Microwave-assisted method; TIO2; NITROGEN;

D O I：

10.1016/j.cap.2012.08.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Single phase perovskite LaFeO3. nanoparticles are directly synthesized by a one-step microwave-assisted route without additional high temperature calcination process. The prepared-sample is characterized by X-ray diffraction (XRD), field emission scanning-microscope (FE-SEM), Brunauer-Emmett-Teller (BET) specific surface area measurement, diffuse reflectance spectroscopy (DRS) and Fourier transform infrared spectroscopy (FTIR). XRD and SEM show that the prepared LaFeO3. is single phase perovskite and sphere-like shape. The DRS result shows that the prepared LaFeO3. has strong visible-light absorption and an optical absorption onset of 525 nm, corresponding to an optical band gap of 2.36 eV. The photocatalytic experiment demonstrates that LaFeO3. is highly visible-light photocatalytic active for the degradation of methylene blue. It is suggested that the narrow band gap and the strong visible-light absorption are responsible for the high visible-light photocatalytic activity of the prepared LaFeO3. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：340 / 343

页数：4

共 23 条

[1] Conventional synthesis method for fine polymetallic LaFeO3 using ethylene glycol solvent addition [J].

Aono, Hiromichi ;

Tomida, Musashi ;

Sadaoka, Yoshihiko .

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2009, 117 (1369) :1048-1051

[2] Microwave-Assisted Synthesis of Colloidal Inorganic Nanocrystals [J].

Baghbanzadeh, Mostafa ;

Carbone, Luigi ;

Cozzoli, P. Davide ;

Kappe, C. Oliver .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (48) :11312-11359

[3] Semiconductor-based Photocatalytic Hydrogen Generation [J].

Chen, Xiaobo ;

Shen, Shaohua ;

Guo, Liejin ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2010, 110 (11) :6503-6570

[4] Preparation, photocatalytic activity, and mechanism of Nano-TiO2 co-doped with nitrogen and iron (III) [J].

Cong, Ye ;

Zhang, Jinlong ;

Chen, Feng ;

Anpo, Masakazu ;

He, Dannong .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (28) :10618-10623

[5] Antiferromagnetic Domain Reconfiguration in Embedded LaFeO3 Thin Film Nanostructures [J].

Folven, Erik ;

Tybell, Thomas ;

Scholl, Andreas ;

Young, Anthony ;

Retterer, Scott T. ;

Takamura, Yayoi ;

Grepstad, Jostein K. .

NANO LETTERS, 2010, 10 (11) :4578-4583

[6] Pure phase LaFeO3 perovskite with improved surface area synthesized using different routes and its characterization [J].

Gosavi, Priti V. ;

Biniwale, Rajesh B. .

MATERIALS CHEMISTRY AND PHYSICS, 2010, 119 (1-2) :324-329

[7] Sol-Gel Synthesis and Photo-Fenton-Like Catalytic Activity of EuFeO3 Nanoparticles [J].

Ju, Lingling ;

Chen, Zhiyuan ;

Fang, Liang ;

Dong, Wen ;

Zheng, Fengang ;

Shen, Mingrong .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2011, 94 (10) :3418-3424

[8]

Khetre S.M., 2011, Int. J. Porous Mater., V1, P1

[9] Synthesis, Characterization, and Photocatalytic Activity of Sr2+ Doped TiO2 Nanoplates [J].

Kumaresan, L. ;

Mahalakshmi, M. ;

Palanichamy, M. ;

Murugesan, V. .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2010, 49 (04) :1480-1485

[10] One-step solvothermal preparation of TiO2/C composites and their visible-light photocatalytic activities [J].

Li, Ming ;

Zhou, Shifeng ;

Zhang, Yuewei ;

Chen, Guangqin ;

Hong, Zhanglian .

APPLIED SURFACE SCIENCE, 2008, 254 (13) :3762-3766

← 1 2 3 →