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WO3/BiVO4 photoanode coated with mesoporous Al2O3 layer for oxidative production of hydrogen peroxide from water with high selectivity
被引:86
|作者:
Fuku, Kojiro
[1
]
Miyase, Yuta
[1
,2
]
Miseki, Yugo
[1
]
Gunji, Takahiro
[1
,2
]
Sayama, Kazuhiro
[1
,2
]
机构:
[1] Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta RCPV, Cent 5,1-1-1 Higashi, Tsukuba, Ibaraki 3058565, Japan
[2] Tokyo Univ Sci, Dept Pure & Appl Chem, 2641 Yamasaki, Noda, Chiba 2788514, Japan
来源:
RSC ADVANCES
|
2017年
/
7卷
/
75期
关键词:
VISIBLE-LIGHT IRRADIATION;
BISMUTH VANADATE;
METAL-OXIDES;
EFFICIENT;
PHOTOCATALYST;
COMPOSITE;
PHOTOELECTRODES;
NANOPARTICLES;
ELECTROLYTES;
SEPARATION;
D O I:
10.1039/c7ra09693c
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A WO3/BiVO4 photoanode coated with various metal oxides demonstrated high selectivity (faradaic efficiency) for hydrogen peroxide (H2O2) generation from water (H2O) under irradiation of simulated solar light in a highly concentrated hydrogen carbonate (KHCO3) aqueous solution. A mesoporous and amorphous aluminium oxide (Al2O3) layer significantly facilitated inhibition of the oxidative degradation of generated H2O2 into oxygen (O-2) on the photoanode, resulting in unprecedented H2O2 selectivity (ca. 80%) and the accumulation (> 2500 mu M at 50C).
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页码:47619 / 47623
页数:5
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