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| Type |
Poster Presentation |
| Area |
Electrochemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 19일 (금요일) 11:00~12:30 |
| Code |
ELEC.P-477 |
| Subject |
The sonochemical preparation of Bi2O3/Bi2S3 for efficient photoelectrochemical water splitting |
| Authors |
Jihyeon Kim, Ki Min Nam*
Department of Chemistry, Mokpo National University, Korea
|
| Abstract |
Photoelectrochemical (PEC) water splitting using semiconductor material has attracted a lot of attention becuase it is environmental technology which produces renewable hydrogen from water using solar energy. Above all things, Bi2S3 has been considered as one of the most promising electrode materials for PEC method due to its narrow band gap (~1.3 eV) and large absorption coefficient. In this paper, Bi2O3/Bi2S3 was synthesized via simple one-spot sonochemical method. In Bi2O3/Bi2S3 composite, photogenerated electrons in conduction band of Bi2S3 transfered to conduction band of Bi2O3, which allow electro-hole pairs to be favorably separated. For this reason, Bi2O3/Bi2S3 composite show improved photoelectrochemical activity under the visible light irradiation. |
| E-mail |
wlgus4033@hanmail.net |
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122nd General Meeting of the KCS