Journal
JOURNAL OF CATALYSIS
Volume 325, Issue -, Pages 156-167Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2015.02.008
Keywords
Commercial TiO2-Pt nanocomposites; Platinum nanoparticles' shape controlling; Photodegradation intermediates; Photocatalysis; H-2 production
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Funding
- Swiss Contribution [SH/7/2/20]
- Romanian-Hungarian bilateral Project [661/2013/K-TET_12_RO-1-2013-0109966]
- Babes-Bolyai University [GTC_34027]
- European Union
- State of Hungary
- European Social Fund [TAMOP 4.2.4. A/1-11-1-2012-0001]
- State of HungaryEuropean Social Fund [TAMOP-4.2.4.A/2-11/1-2012-0001]
- European Social Fund
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As shape tailoring is gaining more attention in the field of photocatalysis, exploration of the impact of noble metal (Pt) nanoparticles' morphology on the activity of TiO2-Pt nanocomposites is inevitable. Spherical and polyhedral Pt nanoparticles have been synthesized by chemical reduction, while Aldrich anatase, Aldrich rutile, and Aeroxide P25 were used as base photocatalysts. The nanocomposites were analyzed using DRS, XRD, and HRTEM to uncover morphological, optical, and structural peculiarities of the composite photocatalysts. The importance of the Pt nanoparticles' geometry was proven at three levels: (i) UV light-driven photodegradation of three model pollutants: phenol, methyl orange, and oxalic acid; (ii) the primary degradation intermediates' evolution profile in the case of phenol degradation; and (iii) photocatalytic H-2 production. (C) 2015 Elsevier Inc. All rights reserved.
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