TiO2 Nanotube Arrays Modified with Cr- Doped SrTiO3 Nanocubes for Highly Efficient Hydrogen Evolution under Visible Light | |
Jiao ZB(焦正波)1,2![]() ![]() ![]() ![]() ![]() | |
刊名 | Chemistry - A European Journal
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2014 | |
卷号 | 20期号:9页码:2654-2662 |
关键词 | doping hydrothermal synthesis nanostructures photoelectrochemistry water splitting |
ISSN号 | 0947-6539 |
通讯作者 | 毕迎普 ; 吕功煊 |
英文摘要 | In recent decades, solar-driven hydrogen production over semiconductors has attracted tremendous interest owing to the global energy and environmental crisis. Among various semiconductor materials, TiO2 exhibits outstanding photocatalytic properties and has been extensively applied in diverse photocatalytic and photoelectric systems. However, two major drawbacks limit practical applications, namely, high charge-recombination rate and poor visiblelight utilization. In this work, heterostructured TiO2 nanotube arrays grafted with Cr-doped SrTiO3 nanocubes were fabricated by simply controlling the kinetics of hydrothermal reactions. It was found that coupling TiO2 nanotube arrays with regular SrTiO3 nanocubes can significantly improve the charge separation. Meanwhile, doping Cr cations into SrTiO3 nanocubes proved to be an effective and feasible approach to enhance remarkably the visible-light response, which was also confirmed by theoretical calculations. As a result, the rate of photoelectrochemical hydrogen evolution of these novel heteronanostructures is an order of magnitude larger than those of TiO2 nanotube arrays and other previously reported SrTiO3/TiO2 nanocomposites under visible-light irradiation. Furthermore, the as-prepared Cr-doped SrTiO3/TiO2 heterostructures exhibit excellent durability and stability, which are favorable for practical hydrogen production and photoelectric nanodevices. |
学科主题 | 环境催化与清洁能源 |
收录类别 | SCI |
资助信息 | the “Hundred Talents Program” of the Chinese Academy of Science;National Natural Science Foundation of China (21273255;21303232) |
语种 | 英语 |
WOS记录号 | WOS:000331729700035 |
公开日期 | 2014-01-22 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/5044] ![]() |
专题 | 兰州化学物理研究所_OSSO国家重点实验室 兰州化学物理研究所_ERC国家工程研究中心 |
通讯作者 | Lv GX(吕功煊); Bi YP(毕迎普) |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Natl Engn Res Ctr Fine Petrochem Intermediates, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Jiao ZB,Zhang Y,Chen T,et al. TiO2 Nanotube Arrays Modified with Cr- Doped SrTiO3 Nanocubes for Highly Efficient Hydrogen Evolution under Visible Light[J]. Chemistry - A European Journal,2014,20(9):2654-2662. |
APA | Jiao ZB.,Zhang Y.,Chen T.,Dong QS.,Lu GX.,...&毕迎普.(2014).TiO2 Nanotube Arrays Modified with Cr- Doped SrTiO3 Nanocubes for Highly Efficient Hydrogen Evolution under Visible Light.Chemistry - A European Journal,20(9),2654-2662. |
MLA | Jiao ZB,et al."TiO2 Nanotube Arrays Modified with Cr- Doped SrTiO3 Nanocubes for Highly Efficient Hydrogen Evolution under Visible Light".Chemistry - A European Journal 20.9(2014):2654-2662. |
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