Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 152, Issue -, Pages 68-72Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2014.01.022
Keywords
Photocatalysis; Hydrogen production; In situ photodeposition; CdS; Environment of photodeposition
Funding
- National High Technology Research and Development Program of China [2012AA051501]
- National Key Basic Research and Development Program [2009CB220000]
- International Cooperation Project of Shanghai Municipal Science and Technology Commission [12160705700]
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Low-cost and effective cocatalysts nickel oxides were deposited on CdS via a simple in situ photodeposition under different solution. It was found that the environment of photodeposition played a critical role in photocatalytic H-2 evolution activities. CdS loaded nickel oxide in alkaline solution showed the highest activity of photocatalytic hydrogen production, reaching to 590.8 mu mol h(-1) when the mole ratio of Ni2+ and CdS was 0.01, which was 117 times higher than that of pure CdS. The high photocatalytic hydrogen production activity might be attributed to the following reasons: (1) NiO could disperse on CdS tightly; (2) the OH- in the alkaline solution could be benefit for the transfer of holes. Thus, the holes and electrons could be separated efficiently. (C) 2014 Elsevier B.V. All rights reserved.
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