Enhanced hydrogen generation from methanol aqueous solutions over Pt/MoO3/TiO2 under ultraviolet light

被引：51
作者：
Ma, Bao Jun [1 ]
Kim, Jin Su [2 ]
Choi, Chang Hyuck [1 ]
Woo, Seong Ihl [1 ,2 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Grad Program BK21, Taejon 305701, South Korea
[2] Korea Adv Inst Sci & Technol, Grad Sch EEWS WCU, Taejon 305701, South Korea
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2013年 / 38卷 / 09期
基金：
新加坡国家研究基金会;
关键词：
Photocatalysis; Hydrogen evolution; Heterojunction; Z-scheme; Pt/MoO3/TiO2; WATER-SPLITTING SYSTEM; SHUTTLE REDOX MEDIATOR; VISIBLE-LIGHT; PHOTOCATALYTIC ACTIVITY; HETEROGENEOUS PHOTOCATALYSIS; TIO2; PHOTOCATALYSTS; SOLID-SOLUTION; SURFACE; PHASE; H-2;
D O I：
10.1016/j.ijhydene.2012.12.142
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：
The photocatalytic activity in hydrogen production from methanol reforming can be significantly enhanced by Pt/MoO3/TiO2 photocatalysts. Compared with Pt/P25, the photocatalytic activity of optimized Pt/MoO3/TiO2 shows an evolution rate of 169 mu mol/h/g of hydrogen, which is almost two times higher than that of Pt/P25. XRD and Raman spectra show that MoO3 are formed on the surface of TiO2. It is found that with the bulk MoO3 just formed, the catalyst shows the highest activity due to a large amount of heterojunctions and the high crystallinity of MoO3. The HRTEM image showed a close contact between MoO3 and TiO2. It is proposed that the Z-scheme type of heterojunction between MoO3 and TiO2 is responsible for the improved photocatalytic activity. The heterojunction structure of MoO3/TiO2 does not only promote the charge separation, but also separates the reaction sites, where the oxidation (mainly on MoO3) and reduction (on TiO2) reactions occurred. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：3582 / 3587
页数：6
相关论文
共 50 条
[41]   NiS/Pt loaded on electrospun TiO2 nanofiber with enhanced visible-light-driven photocatalytic hydrogen production br [J].
Chang, Yu-Cheng ;
Zeng, Cheng-Jyun ;
Chen, Chin-Yi ;
Tsay, Chien-Yie ;
Lee, Gang-Juan ;
Wu, Jerry J. .
MATERIALS RESEARCH BULLETIN, 2023, 157
[42]   Rationally designed C3N4/TiO2 (anatase/brookite) heterojunction for enhanced photocatalytic hydrogen generation under visible light [J].
Martinez-Garcia, H. ;
Salazar-Marin, D. ;
Collins-Martinez, V. ;
Torres-Torres, J. G. ;
Kesarla, M. K. ;
Jaramillo-Quintero, O. A. ;
Hernandez-Como, N. ;
Oza, Goldie ;
Ortiz-Chi, F. ;
Diaz-Real, J. A. ;
Godavarthi, S. .
CERAMICS INTERNATIONAL, 2023, 49 (21) :33901-33911
[43]   Synthesis and Characterization of Visible Light Driven Mesoporous Nano-Photocatalyst MoO3/TiO2 [J].
Kong, Fei ;
Huang, Li ;
Luo, Leilei ;
Chu, Sheng ;
Wang, Ying ;
Zou, Zhigang .
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2012, 12 (03) :1931-1937
[44]   Enhanced and Selective Degradation of Pollutants over Cyclodextrin/TiO2 under Visible Light Irradiation [J].
Zhang, Xu ;
Li, Xuankun ;
Deng, Nansheng .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2012, 51 (02) :704-709
[45]   High photocatalytic hydrogen production from methanol aqueous solution using the photocatalysts CuS/TiO2 [J].
Wang, Qizhao ;
An, Ning ;
Bai, Yan ;
Hang, Haohao ;
Li, Jiajia ;
Lu, Xiaolin ;
Liu, Yinghua ;
Wang, Fangping ;
Li, Zhimin ;
Lei, Ziqiang .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (25) :10739-10745
[46]   Enhanced photocatalytic activity in H2 production from methanol aqueous solution based on the synthesized Pt-TiO2-decorated MoSe2 nanocomposites [J].
Alshgari, Razan A. ;
Khan, Mohammad Rizwan ;
Mohandoss, Sonaimuthu ;
ALOthman, Zeid A. ;
Alotibi, Amerah M. ;
Alothman, Asma A. ;
Ahmad, Naushad .
JOURNAL OF ALLOYS AND COMPOUNDS, 2024, 980
[47]   In2O3/TiO2 nano photocatalysts for solar hydrogen production from methanol:water mixtures [J].
Lalitha, K. ;
Kumari, V. Durga ;
Subrahmanyam, M. .
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 2014, 53 (4-5) :472-477
[48]   Quantum yields for sacrificial hydrogen generation from saccharides over a Pt-loaded TiO2 photocatalyst [J].
Yasuda, Masahide ;
Kurogi, Ryo ;
Matsumoto, Tomoko .
RESEARCH ON CHEMICAL INTERMEDIATES, 2016, 42 (04) :3919-3928
[49]   Quantum yields for sacrificial hydrogen generation from saccharides over a Pt-loaded TiO2 photocatalyst [J].
Masahide Yasuda ;
Ryo Kurogi ;
Tomoko Matsumoto .
Research on Chemical Intermediates, 2016, 42 :3919-3928
[50]   Observation of oxo-bridged yttrium in TiO2 nanostructures and their enhanced photocatalytic hydrogen generation under UV/Visible light irradiations [J].
Ravikumar, Chandan H. ;
Sakar, M. ;
Mahto, Ashesh ;
Nanjundaiah, Ravishankar Thammadihalli ;
Thippeswamy, Ramakrishnappa ;
Teixeira, Sergio Ribeiro ;
Balakrishna, R. Geetha .
MATERIALS RESEARCH BULLETIN, 2018, 104 :212-219
12345