Fabrication of anatase TiO2 tapered tetragonal nanorods with designed {100}, {001} and {101} facets for enhanced photocatalytic H2 evolution

被引:22
作者
Liu, Zuohua [1 ]
Zheng, Yujie [1 ]
Gao, Tingting [1 ]
Zhang, Ling [1 ]
Sun, Xuefeng [1 ]
Zhou, Guowei [1 ]
机构
[1] Qilu Univ Technol, Key Lab Fine Chem Univ Shandong, Sch Chem & Pharmaceut Engn, Jinan 250353, Shandong, Peoples R China
基金
中国国家自然科学基金;
关键词
Anatase; Tapered tetragonal nanorods; Exposed facets; Hydrogen generation; TITANIUM-DIOXIDE; SOLVOTHERMAL SYNTHESIS; SINGLE-CRYSTALS; GREEN SYNTHESIS; NANOCRYSTALS; SHAPE; WATER; NANOSHEETS; NANOPARTICLES; PERFORMANCE;
D O I
10.1016/j.ijhydene.2017.07.067
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
In this study, anatase TiO2 nanorods with exposed high-energy {100} and {001} facets and low-energy {101} facets were fabricated in the presence of surfactants cetyltrimethylammonium bromide, didecyldimethylammonium bromide, and ammonia via a facile hydrothermal method without the erosive reagent hydrofluoric acid. The particle size and morphology were mainly tuned by regulating the hydrothermal temperature. When the temperature was increased from 150 degrees C to 180 degrees C and 200 degrees C, the length of the nanorods decreased from 700-1000 nm to 400-500 nm and 100-200 nm, respectively. Concurrently, the edges and tops of the truncated tetragonal pyramid of the TiO2 nanorods became blurry and flattened. The synthesized typical TiO2 nanorods were then used as photocatalysts, and their performance during the direct generation of H-2 from water was evaluated. The TiO2 nanorods obtained at 150 degrees C successfully produced high amounts of H-2 evolution (281.36 mu mol) in the presence of methanol as a sacrificial agent under ultraviolet light irradiation for 4 h. The outstanding photocatalytic activity of the nanorods was mainly ascribed to the formation of surface heterojunctions in the edges and corners between adjacent high-energy {001) or {100} facets and low-energy {101) facets. The formed heterojunctions could facilitate charge separation through preferential carrier flow toward the specific facets. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:21775 / 21785
页数:11
相关论文
共 64 条
[1]   Activation effect of silver nanoparticles on the photoelectrochemical performance of mesoporous TiO2 nanospheres photoanodes for water oxidation reaction [J].
Arunachalam, Prabhakarn ;
Amer, Mabrook S. ;
Ghanem, Mohamed A. ;
Al-Mayouf, Abdullah M. ;
Zhao, Dongyuan .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2017, 42 (16) :11346-11355
[2]   Prediction of TiO2 nanoparticle phase and shape transitions controlled by surface chemistry [J].
Barnard, AS ;
Curtiss, LA .
NANO LETTERS, 2005, 5 (07) :1261-1266
[3]   Titanium Dioxide (Anatase and Rutile): Surface Chemistry, Liquid Solid Interface Chemistry, and Scientific Synthesis of Supported Catalysts [J].
Bourikas, Kyriakos ;
Kordulis, Christos ;
Lycourghiotis, Alexis .
CHEMICAL REVIEWS, 2014, 114 (19) :9754-9823
[4]   Synergetic Enhancement of Light Harvesting and Charge Separation over Surface-Disorder-Engineered TiO2 Photonic Crystals [J].
Cai, Jinmeng ;
Wu, Moqing ;
Wang, Yating ;
Zhang, Hao ;
Meng, Ming ;
Tian, Ye ;
Li, Xingang ;
Zhang, Jing ;
Zheng, Lirong ;
Gong, Jinlong .
CHEM, 2017, 2 (06) :877-892
[5]   Thermodynamically Driven One-Dimensional Evolution of Anatase TiO2 Nanorods: One-Step Hydrothermal Synthesis for Emerging Intrinsic Superiority of Dimensionality [J].
Chen, Jiazang ;
Bin Yang, Hong ;
Miao, Jianwei ;
Wang, Hsin-Yi ;
Liu, Bin .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2014, 136 (43) :15310-15318
[6]   Heterojunctions in g-C3N4/B-TiO2 nanosheets with exposed {001} plane and enhanced visible-light photocatalytic activities [J].
Chen, Liuyong ;
Zhou, Xiaosong ;
Jin, Bei ;
Luo, Jin ;
Xu, Xuyao ;
Zhang, Lingling ;
Hong, Yanping .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2016, 41 (18) :7292-7300
[7]   Dye-sensitized anatase titanium dioxide nanocrystalline with (001) preferred orientation induced by Langmuir-Blodgett monolayer [J].
Deng, HH ;
Zhang, H ;
Lu, ZH .
CHEMICAL PHYSICS LETTERS, 2002, 363 (5-6) :509-514
[8]   The surface science of titanium dioxide [J].
Diebold, U .
SURFACE SCIENCE REPORTS, 2003, 48 (5-8) :53-229
[9]   Shape-controlled synthesis of single-crystalline anatase TiO2 micro/nanoarchitectures for efficient dye-sensitized solar cells [J].
Ding, Yong ;
Zhang, Tingting ;
Liu, Cheng ;
Yang, Yi ;
Pan, Jiahong ;
Yao, Jianxi ;
Hu, Linhua ;
Dai, Songyuan .
SUSTAINABLE ENERGY & FUELS, 2017, 1 (03) :520-528
[10]   Shape-Controlled Synthesis of Highly Crystalline Titania Nanocrystals [J].
Dinh, Cao-Thang ;
Nguyen, Thanh-Dinh ;
Kleitz, Freddy ;
Do, Trong-On .
ACS NANO, 2009, 3 (11) :3737-3743