- 태양광 수소 생산용 CdS와 CdSe 흡착 TiO2 나노튜브 어레이
- ㆍ 저자명
- 김현,양비룡,Kim. Hyun,Yang. Bee-Lyong
- ㆍ 간행물명
- 한국세라믹학회지
- ㆍ 권/호정보
- 2012년|49권 1호|pp.130-133 (4 pages)
- ㆍ 발행정보
- 한국세라믹학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this work we report investigation results of enhanced visible light photocatalytic properties of CdS and CdSe sensitized $TiO_2$ nanotube heterostructures. Anodically grown ordered $TiO_2$ nanotube arrays were sensitized with CdS and CdSe by using successive ionic layer adsorption and reaction method. Photocatalytic measurements revealed that heterostructured samples show enhanced photocurrent density under the visible light illumination. Improved visible light performance of the heterostuctures was explained by lower band gap of the CdS and CdSe and their favorable conduction band positions relative to $TiO_2$. Moreover, due to the lower band gap of the CdSe (1.7 eV) compared to CdS (2.4 eV), both photocurrent density and photoconversion efficiency results showed superior activity.