Photoelectrochemical hydrogen production from water/methanol decomposition using Ag/TiO2 nanocomposite thin films

被引:146
作者
Alenzi, Naser [2 ]
Liao, Wei-Ssu [3 ]
Cremer, Paul S. [3 ]
Sanchez-Torres, Viviana [1 ]
Wood, Thomas K. [1 ,4 ,5 ]
Ehlig-Economides, Christine [2 ]
Cheng, Zhengdong [1 ]
机构
[1] Texas A&M Univ, Artie McFerrin Dept Chem Engn, College Stn, TX 77843 USA
[2] Texas A&M Univ, Harold Vance Dept Petr Engn, College Stn, TX 77843 USA
[3] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA
[4] Texas A&M Univ, Dept Biol, College Stn, TX 77843 USA
[5] Texas A&M Univ, Zachry Dept Civil & Environm Engn, College Stn, TX 77843 USA
基金
美国国家科学基金会;
关键词
Photoelectrochemical hydrogen; production; Ag/TiO2 nanocomposite thin film; Solar energy; Water-splitting; Nanotechnology; VISIBLE-LIGHT IRRADIATION; TITANIUM-DIOXIDE; METHANOL/WATER DECOMPOSITION; METHYL-ORANGE; WATER; TIO2; PHOTOCATALYST; CHEMISTRY; ANATASE;
D O I
10.1016/j.ijhydene.2010.08.020
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070305 [高分子化学与物理];
摘要
Though less frequently studied for solar-hydrogen production, films are more convenient to use than powders and can be easily recycled. Anatase TiO2 films decorated with Ag nanoparticles are synthesized by a rapid, simple, and inexpensive method. They are used to cleave water to produce H, under UV light in the presence of methanol as a hole scavenger. A simple and sensitive method is established here to monitor the time course of hydrogen production for ultralow amounts of TiO2. The average hydrogen production rate of Ag/TiO2 anatase films is 147.9 35.5 amol/h/g. Without silver, it decreases dramatically to 4.65 0.39 amol/h/g for anatase TiO2 films and to 0.46 0.66 amol/hig for amorphous TiO2 films fabricated at room temperature. Our method can be used as a high through-put screening process in search of high efficiency heterogeneous photocatalysts for solar-hydrogen production from water-splitting. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:11768 / 11775
页数:8
相关论文
共 29 条
[1]
Silver-modified titanium dioxide thin films for efficient photodegradation of methyl orange [J].
Arabatzis, IM ;
Stergiopoulos, T ;
Bernard, MC ;
Labou, D ;
Neophytides, SG ;
Falaras, P .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 42 (02) :187-201
[2]
Direct writing of metal nanoparticle films inside sealed microfluidic channels [J].
Castellana, ET ;
Kataoka, S ;
Albertorio, F ;
Cremer, PS .
ANALYTICAL CHEMISTRY, 2006, 78 (01) :107-112
[3]
Hydrogen production from methanol/water decomposition in a liquid photosystem using the anatase structure of Cu loaded TiO2 [J].
Choi, Hyung-Joo ;
Kang, Misook .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2007, 32 (16) :3841-3848
[4]
Photoelectrochemical water splitting [J].
Currao, Antonio .
CHIMIA, 2007, 61 (12) :815-819
[5]
Greenhouse gas reduction benefits and costs of a large-scale transition to hydrogen in the USA [J].
Dougherty, William ;
Kartha, Sivan ;
Rajan, Chella ;
Lazarus, Michael ;
Bailie, Alison ;
Runkle, Benjamin ;
Fencl, Amanda .
ENERGY POLICY, 2009, 37 (01) :56-67
[6]
Hydrogen futures: toward a sustainable energy system [J].
Dunn, S .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2002, 27 (03) :235-264
[7]
ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].
FUJISHIMA, A ;
HONDA, K .
NATURE, 1972, 238 (5358) :37-+
[8]
Photo-catalytic degradation of methyl orange and formaldehyde by Ag/InVO4-TiO2 thin films under visible-light irradiation [J].
Ge, Lei ;
Xu, Mingxia ;
Fang, Haibo .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2006, 258 (1-2) :68-76
[9]
PRIMARY ENERGY-SOURCES FOR HYDROGEN-PRODUCTION [J].
HASSMANN, K ;
KUHNE, HM .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1993, 18 (08) :635-640
[10]
Jeon MK, 2007, J IND ENG CHEM, V13, P84