Effective water splitting using N-doped TiO2 films: Role of preferred orientation on hydrogen production

被引：44

作者：

Wang, Chong ^{[1
,2
]}

Hu, Qian-Qian ^{[1
,2
]}

Huang, Ji-Quan ^{[1
]}

Deng, Zhong-Hua ^{[1
,2
]}

Shi, Hong-Ling ^{[3
]}

Wu, Lan ^{[3
]}

Liu, Zhu-Guang ^{[1
]}

Cao, Yong-Ge ^{[1
,3
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

[3] Renmin Univ China, Coll Sci, Beijing 100000, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Hydrogen production; Water splitting; N-doped TiO2 film; Preferred (211) orientation; RF magnetron sputtering; ANATASE TIO2; PHOTOCATALYTIC ACTIVITY; SINGLE-CRYSTALS; GREEN SYNTHESIS; NANOCRYSTALS; PERFORMANCE; OXIDATION;

D O I：

10.1016/j.ijhydene.2013.11.097

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：

N-doped TiO2 film with preferred (211) orientation, deposited by RF magnetron sputtering, was investigated for the water-splitting hydrogen production. It is found that the preferred crystal growth orientation of the films can be controlled by N-2 flow rate during the deposition. The results reveal that not only the N-doping, but also the preferred orientation (i.e., large percentage of exposed (211) facet), can effectively enhance the activity of TiO2-based photocatalyst. With the increase of exposed (211) facets, the hydrogen production rates of N-doped TiO2 films rise from 760 mu mol H-2 h(-1) m(-2) to 4500 mu mol H-2 h(-1) m(-2), indicating that high performance of TiO2-based photocatalyst can be achieved by controlling the preferred orientation of the films. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：1967 / 1971

页数：5

共 38 条

[1] Visible-light photocatalysis in nitrogen-doped titanium oxides [J].

Asahi, R ;

Morikawa, T ;

Ohwaki, T ;

Aoki, K ;

Taga, Y .

SCIENCE, 2001, 293 (5528) :269-271

[2] N incorporation, composition and electronic structure in N-doped TiO2(001) anatase epitaxial films grown on LaAlO3(001) [J].

Cheung, S. H. ;

Nachimuthu, P. ;

Engelhard, M. H. ;

Wang, C. M. ;

Chambers, S. A. .

SURFACE SCIENCE, 2008, 602 (01) :133-141

[3]

Cong Y., J PHYS CHEM C

[4] Synthesis of Anatase TiO2 Nanocrystals with Exposed {001} Facets [J].

Dai, Yunqian ;

Cobley, Claire M. ;

Zeng, Jie ;

Sun, Yueming ;

Xia, Younan .

NANO LETTERS, 2009, 9 (06) :2455-2459

[5] Hydrogen production by photocatalytic water-splitting using Cr- or Fe-doped TiO2 composite thin films photocatalyst [J].

Dholam, R. ;

Patel, N. ;

Adami, M. ;

Miotello, A. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (13) :5337-5346

[6] Characterization of paramagnetic species in N-doped TiO2 powders by EPR spectroscopy and DFT calculations [J].

Di Valentin, C ;

Pacchioni, G ;

Selloni, A ;

Livraghi, S ;

Giamello, E .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (23) :11414-11419

[7] Photochemical activity of nitrogen-doped rutile TiO2(111) in visible light [J].

Diwald, O ;

Thompson, TL ;

Zubkov, T ;

Goralski, EG ;

Walck, SD ;

Yates, JT .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (19) :6004-6008

[8] Nitrogen-doped TiO2 thin films: photocatalytic applications for healthcare environments [J].

Dunnill, Charles W. ;

Parkin, Ivan P. .

DALTON TRANSACTIONS, 2011, 40 (08) :1635-1640

[9] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].

FUJISHIMA, A ;

HONDA, K .

NATURE, 1972, 238 (5358) :37-+

[10]

Fujishima A., 1999, TIO2 PHOTOCATALYSIS

← 1 2 3 4 →