Impact of Hole Scavengers on Efficient Photocatalytic Hydrogen Production

被引:5
|
作者
Augustin, Ashil [1 ]
Ganguly, Priyanka [2 ]
Shenoy, Sulakshana [3 ]
Chuaicham, Chitiphon [3 ,4 ]
Pillai, Suresh C. [5 ]
Sasaki, Keiko [3 ,4 ]
Lee, Adam F. [6 ]
Sekar, Karthikeyan [1 ,3 ]
机构
[1] SRM Inst Sci & Technol, Fac Engn & Technol, Dept Chem, Sustainable Energy & Environm Res Lab, Kattankulathur 603203, Tamil Nadu, India
[2] London Metropolitan Univ, Sch Human Sci, London N7 8DB, England
[3] Kyushu Univ, Fac Engn, Dept Earth Resources Engn, 744 Motooka, Nishiku, Fukuoka 8190395, Japan
[4] Waseda Univ, Fac Sci & Engn, Okubo 3-4-1,Shinjukuku, Tokyo 1690072, Japan
[5] Atlantic Technol Univ, Dept Environm Sci, Nanotechnol & Bioengn Res Grp, ATU Sligo, Ash Lane, Sligo F91 YW50, Ireland
[6] Griffith Univ, Ctr Catalysis & Clean Energy, Sch Environm & Sci, Southport, Qld 4222, Australia
来源
ADVANCED SUSTAINABLE SYSTEMS | 2024年 / 8卷 / 12期
基金
爱尔兰科学基金会;
关键词
charge transfer; hole quenching; hydrogen; scavengers; water splitting; SACRIFICIAL REAGENTS; ENERGY-CONVERSION; LIGHT; TIO2; COCATALYSTS; EVOLUTION; FUEL; PERFORMANCE; REDUCTION; OXIDATION;
D O I
10.1002/adsu.202400321
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Hydrogen is one of the most promising alternative energy resources to replace fossil feedstocks, with so-called "green" hydrogen, derived by water splitting (WS) using renewable electricity or sunlight, the most sustainable. Photocatalytic hydrogen production, in which sunlight is the sole energy input, has been extensively studied, and requires the creation of photogenerated excitons (through irradiation of semiconductors) and their transport to aqueous media. Chemical scavengers, notably electron donating molecules, are widely used to quench photogenerated holes and thereby suppress exciton recombination which otherwise limits the hydrogen yield. Despite their prevalence, the role and significance of such scavengers (also termed sacrificial agents) in photocatalytic WS remains poorly understood, hindering their rational selection. This review focuses on the importance of electron donors in photocatalytic WS, and their participation in the reaction mechanism.
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收藏
页数:27
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