Journal
APPLIED SURFACE SCIENCE
Volume 430, Issue -, Pages 407-414Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2017.08.071
Keywords
Hydrogenation; TiO2; Photocatalytic hydrogen production; Photodegradation; Sol-gel method
Categories
Funding
- Ministry of Science and Technology, Taiwan [MOST 106-2221-E-182-057-MY3, MOST 106-2119-M-002-030, MOST 105-2632-E-182-001]
- Chang Gung Memorial Hospital, Linkou [CMRPD2E0071, CMRPD2E0072, BMRPC74]
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Black TiO2 nanoparticles (BTN) was prepared by sol-gel derived precursor calcined in an argon atmosphere. The synthesized BTN with trivalent titanium ion, structural defect, and oxygen vacancy shows a remarkably high absorbance in the visible light spectrum. BTN thus behaves a higher visible-active nanoreactor than white TiO2 nanoparticles (WTN) in the aqueous solution for organic pollutant degradation. Moreover, palladium decoration on the BTN surface (Pd-BTN) demonstrates a fascinating clean energy application. The obtained Pd-BTN fulfills a satisfied green material demand in the photocatalytic hydrogen production application. Pd-BTN calcined at 400. degrees C (Pd-BTN-400) shows the high photocatalytic hydrogen generation rate of 5200 mu mol/g h under UV-A irradiation and 9300 mu mol/g h under UV-B irradiation, respectively. The well-developed material, Pd-BTN-400, could be one of the best solutions in the concern of clean energy and water-purification with regard to the continuous environmental issue. (C) 2017 Elsevier B.V. All rights reserved.
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