| 학회 |
한국화학공학회 |
| 학술대회 |
2005년 봄 (04/22 ~ 04/23, 여수대학교) |
| 권호 |
11권 1호, p.515 |
| 발표분야 |
에너지/환경 |
| 제목 |
Hydrogen Production over Nano Bulk Composite (NBC) Photocatalyst Based on Bulk CdS under Visible Light Irradiation (λ≥420nm) |
| 초록 |
Nano-Bulk composite (NBC) photocatalysts based on bulk CdS were fabricated as precipitation method and sol-gel synthesis. The contact between two phases was maximized and the electron carrier component was in a nanoparticulate form. Their photocatalytic activity of H2 production was investigated from aqueous solution containing hole scavengers such as sulfide and sulfite under visible light irradiation (λ≥420nm). The amount of hydrogen evolution of CdS based-composite photocatalyst was increased by ca. 4.5 times from that of single-phase CdS photocatalyst. Therefore, in this work, it could be confirmed that the formation of NBC photocatalyst is an effective strategy to acquire an active photocatalyst probably because the photoelectrons generated from CdS photocatalyst diffuse rapidly toward TiO2 nanoparticles enabling an efficient electron-hole separation. |
| 저자 |
장점석, 지상민, 김현규, 배상원, 손효창, Pramod H. Borse, 이재성
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| 소속 |
포항공과대 |
| 키워드 |
1 |
| E-Mail |
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| 원문파일 |
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