Photocatalytic hydrogen production over CdS/titania-nanotube composite films

Sang-Jin Moon R.N.; Hyun-Mi Lee; Won-Wook So; Jin-Ook Baeg; Kijeong Kong

doi:10.1117/12.732410

11 September 2007 Photocatalytic hydrogen production over CdS/titania-nanotube composite films

Sang-Jin Moon R.N., Hyun-Mi Lee, Won-Wook So, Jin-Ook Baeg, Kijeong Kong

Proceedings Volume 6650, Solar Hydrogen and Nanotechnology II; 66500Y (2007) https://doi.org/10.1117/12.732410
Event: Solar Energy + Applications, 2007, San Diego, California, United States

Abstract

Titania nanotubes (TiNTs) with high surface area were synthesized by hydrothermal reaction under strongly basic condition and their photocatalytic application was explored. After preparing a series of CdS-TiNT composite films with variation of the mole ratio (r) of TiNT/(CdS + TiNT), their photocatalytic activities for hydrogen production and the photocurrent generation under the visible light irradiation were examined. In the aspect of light absorption for the photocatalytic reaction, the CdS-TiNT composite films revealed similar amounts of absorption to their counterparts, i.e., CdS-TiO₂ particulate series. However, the former showed less significant synergistic effect in the photocurrent generation and lower photocatalytic activities compared to the latter. Consequently, it appears that TiNTs are not so effective photocatalyic material in spite of their larger surface areas rather than TiO₂ nano-particles, because they indicate a poor crystallinity and a less intimate interaction or contact with CdS particles owing to the tubular morphology and a readily agglomeration among themselves.

Citation Download Citation

Sang-Jin Moon R.N., Hyun-Mi Lee, Won-Wook So, Jin-Ook Baeg, and Kijeong Kong "Photocatalytic hydrogen production over CdS/titania-nanotube composite films", Proc. SPIE 6650, Solar Hydrogen and Nanotechnology II, 66500Y (11 September 2007); https://doi.org/10.1117/12.732410

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available