Facile In Situ Hydrothermal Method for Synthesis of SrTiO3/TiO2 Nanostructures with Improved Photoelectrochemical Activities

被引：9
作者：
Liang, Yanqin [1 ,2 ]
Ma, Lili [1 ]
Cui, Zhenduo [1 ]
Li, Zhaoyang [1 ,2 ]
Zhu, Shengli [1 ,2 ]
Yang, Xianjin [1 ,2 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
[2] Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2013年 / 160卷 / 10期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
TIO2 NANOTUBE ARRAYS; THIN-FILMS; NANOPARTICLES; FABRICATION; ANODIZATION; PHOTOANODE; BEHAVIORS;
D O I：
10.1149/2.045310jes
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this study, a heterostructured SrTiO3/TiO2 nanostructure was fabricated in situ by a hydrothermal method, using TiO2 nanotubes (NTs) as both the template and a reactant. SrTiO3 was synthesized in strontium hydroxide solutions with different Sr2+ concentrations. At a Sr2+ concentration of 0.1 M, the TiO2 NT morphology was maintained, and SrTiO3 nanoparticles assembled evenly on the TiO2 NT surface (SrTiO3/TiO2 NTs). With the Sr2+ concentration increasing, the SrTiO3/TiO2 NT morphology changed into SrTiO3/TiO2 nandlowers (NFs). The photoelectrochernical properties of different nanostructures were also evaluated. The photoelectrochernical activity of SrTiO3/TiO2 NTs was higher than those of pure TiO2 NTs and SrTiO3/TiO2 NFs because of SrTiO3 incorporation and its tubular structure. SrTiO3/TiO2 NFs showed the poorest photoelectrochemical activity. It can be attributed to destruction of the tubular structure. Our findings provide fundamental insights into the fabrication and utility of SrTiO3/TiO2 NTs for enhanced environmental remediation processes. (C) 2013 The Electrochemical Society. All rights reserved.
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收藏
页码：H704 / H709
页数：6
相关论文
共 33 条
[1]   Photoelectrochemical and water photoelectrolysis properties of ordered TiO2 nanotubes fabricated by Ti anodization in fluoride-free HCl electrolytes [J].
Allam, Nageh K. ;
Shankar, Karthik ;
Grimes, Craig A. .
JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (20) :2341-2348
[2]   A Facile in Situ Hydrothermal Method to SrTiO3/TiO2 Nanofiber Heterostructures with High Photocatalytic Activity [J].
Cao, Tieping ;
Li, Yuejun ;
Wang, Changhua ;
Shao, Changlu ;
Liu, Yichun .
LANGMUIR, 2011, 27 (06) :2946-2952
[3]   Titanium dioxide nanomaterials: Synthesis, properties, modifications, and applications [J].
Chen, Xiaobo ;
Mao, Samuel S. .
CHEMICAL REVIEWS, 2007, 107 (07) :2891-2959
[4]   Morphological Evolution from SnO2 Quantum Dots to Quantum Chains inside Channels of Mesoporous Spheres [J].
Gu, Feng ;
Ren, Xiang ;
Zhang, Jian ;
Shao, Wei ;
Huang, Guangjian ;
Li, Chunzhong .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2011, 50 (22) :12542-12547
[5]   Electrochemical Fabrication of Strontium-Doped TiO2 Nanotube Array Electrodes and Investigation of Their Photoelectrochemical Properties [J].
Hamedani, Hoda A. ;
Allam, Nageh K. ;
Garmestani, Hamid ;
El-Sayed, Mostafa A. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (27) :13480-13486
[6]   Mesoporous SnO2 Spheres Synthesized by Electrochemical Anodization and Their Application in CdSe-Sensitized Solar Cells [J].
Hossain, Md. Anower ;
Yang, Guangwu ;
Parameswaran, Manoj ;
Jennings, James Robert ;
Wang, Qing .
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (49) :21878-21884
[7]   Photoelectrochemical and Photocatalytic Behaviors of Hematite-Decorated Titania Nanotube Arrays: Energy Level Mismatch versus Surface Specific Reactivity [J].
Jeon, Tae Hwa ;
Choi, Wonyong ;
Park, Hyunwoong .
JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (14) :7134-7142
[8]   Hydrothermal production of SrTiO3 nanotube arrays [J].
Jitputti, Jaturong ;
Charoensirithavorn, Patcharee ;
Yoshikawa, Susumu .
CHEMISTRY LETTERS, 2007, 36 (12) :1508-1509
[9]   A ternary hybrid CdS/Pt-TiO2 nanotube structure for photoelectrocatalytic bactericidal effects on Escherichia Coli [J].
Kang, Qing ;
Lu, Qing Z. ;
Liu, Shao H. ;
Yang, Li X. ;
Wen, Ling F. ;
Luo, Sheng L. ;
Cai, Qing Y. .
BIOMATERIALS, 2010, 31 (12) :3317-3326
[10]   Charge transfer in iron oxide photoanode modified with carbon nanotubes for photoelectrochemical water oxidation: An electrochemical impedance study [J].
Kim, Jae Young ;
Jun, Hwichan ;
Hong, Suk Joon ;
Kim, Hyun Gyu ;
Lee, Jae Sung .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (16) :9462-9468
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