Synthesis of Cr,N-codoped titania nanotubes and their visible-light-driven photocatalytic properties

被引：15

作者：

Fan, Jinmin ^{[1
]}

Zhao, Zhihuan ^{[1
]}

Wang, Jianye ^{[1
]}

Zhu, Lixiao ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Shanxi, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2015年 / 324卷

关键词：

Photocatalysis; Cr; N-codoped TiO2 nanotubes; Hydrothermal synthesis; Impregnation; Kinetics; CR-DOPED TIO2; GAS-ADSORPTION; DEGRADATION; ABSORPTION; ANATASE; DOPANT; OXIDE; CO2;

D O I：

10.1016/j.apsusc.2014.11.018

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：

Cr and N-codoped TiO2 nanotubes with larger specific surface area and smaller band gap energy compared with pure TiO2 nanotubes were prepared via a two-step process of hydrothermal and post-impregnation method. The obtained catalysts were characterized by TEM, XRD, XPS, BET, FT-IR and UV-Vis DRS measurements for investigating nanostructure, crystal phase, specific surface area, bonding state and light-harvesting properties of these samples, respectively. Additionally, the effects of doping amount of Cr ions on the morphology, crystal structure, optical adsorption and photocatalytic activity of codoped TiO2 nanotubes were investigated. The photocatalytic activity was evaluated by degradation of methyl orange (MO) under visible light for 100 min. It was found that the highest photocatalytic activity could be realized when the concentration of Cr was 1.06%, and the degradation rate was up to 97.16%, far higher than that of undoped TiO2 nanotubes (10.56%). In addition, photocatalytic degradation of MO on codoped TiO2 nanotubes surface was proven to be in accordance with the first-order kinetics. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：691 / 697

页数：7

共 42 条

[11]

Huang DE, 2007, J MATER RES, V22, P2389, DOI 10.1557/JMR.2007.0319

[12] Highly active TiO2-x-yNxFy visible photocatalyst prepared under supercritical conditions in NH4F/EtOH fluid [J].

Huo, Yuning ;

Jin, Yi ;

Zhu, Jian ;

Li, Hexing .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 89 (3-4) :543-550

[13] Effects of Sn dopant on the photoinduced charge property and photocatalytic activity of TiO2 nanoparticles [J].

Jing, LQ ;

Fu, HG ;

Wang, BQ ;

Xin, BF ;

Li, SD ;

Sun, JZ .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 62 (3-4) :282-291

[14] Gas adsorption characterization of ordered organic-inorganic nanocomposite materials [J].

Kruk, M ;

Jaroniec, M .

CHEMISTRY OF MATERIALS, 2001, 13 (10) :3169-3183

[15] Advanced Nanoarchitectures for Solar Photocatalytic Applications [J].

Kubacka, Anna ;

Fernandez-Garcia, Marcos ;

Colon, Gerardo .

CHEMICAL REVIEWS, 2012, 112 (03) :1555-1614

[16] Complex-assisted one-step synthesis of ion-exchangeable titanate nanotubes decorated with CdS nanoparticles [J].

Kukovecz, A ;

Hodos, M ;

Kónya, Z ;

Kiricsi, I .

CHEMICAL PHYSICS LETTERS, 2005, 411 (4-6) :445-449

[17] Comparing Cr, and N only doping with (Cr, N)-codoping for enhancing visible light reactivity of TiO2 [J].

Li, Yuan ;

Wang, Wei ;

Qiu, Xiaofeng ;

Song, Liang ;

Meyer, Harry M., III ;

Paranthaman, M. Parans ;

Eres, Gyula ;

Zhang, Zhenyu ;

Gu, Baohua .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2011, 110 :148-153

[18] PHOTOCATALYSIS ON TIO2 SURFACES - PRINCIPLES, MECHANISMS, AND SELECTED RESULTS [J].

LINSEBIGLER, AL ;

LU, GQ ;

YATES, JT .

CHEMICAL REVIEWS, 1995, 95 (03) :735-758

[19] Synthesis of C, Ag co-modified TiO2 photocatalyst and its application in waste water purification [J].

Liu, Hui ;

Dong, Xiaonan ;

Li, Guangjun ;

Su, Xing ;

Zhu, Zhenfeng .

APPLIED SURFACE SCIENCE, 2013, 271 :276-283

[20] Enhancing the visible light absorption via combinational doping of TiO2 with nitrogen (N) and chromium (Cr) [J].

Liu, Lili ;

Chen, Shougang ;

Sun, Weiwei ;

Xin, Junwei .

JOURNAL OF MOLECULAR STRUCTURE, 2011, 1001 (1-3) :23-28

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