Journal
NANOSCALE
Volume 3, Issue 11, Pages 4655-4661Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1nr10628g
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Funding
- Ministry of Education, Singapore [ARC25/08 (T208B1215), RG117/06]
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A novel photocatalytic hydrogen evolution system was constructed by using well-dispersed layered double hydroxide (LDH) to immobilize the photosensitizer (rose bengal, RB) and photocatalyst (Pt). The produced amount of H-2 from such a self-assembled RB-LDH-Pt system is a few times more than that from the Free system (without LDH). Moreover, RB-LDH-Pt can be reused for at least 6 times (still having 64% of the activity in the 6(th) run) by a simple method of centrifugation which makes this system more economical by recycling the expensive Pt. The total turnover number (TON) obtained after six runs for RB-LDH-Pt was calculated to be 304 based on Pt, which gave at least 13-fold enhancement compared with that from the Free system.
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