Pt Nanocluster Co-Catalysts for Photocatalytic Water Splitting
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Alvino, Jason F
Batmunkh, Munkhbayar
Metha, Gregory E
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Abstract
Degussa P25 is a benchmark form of TiO2 used worldwide in photocatalysis studies. Currently, no such benchmark exists for co-catalysts, which are essential for many photocatalytic reactions. Here, we present the preparation of Pt nanocluster co-catalysts on TiO2 using an unmodified commercial source and equipment that is commonly available. Transmission electron microscopy reveals that the procedure produces TiO2 decorated with Pt atoms and nanoclusters (1–5 atoms). Optical reflectance and X-ray diffraction measurements show that the procedure does not affect the TiO2 polymorph or ultraviolet-visible (UV-Vis) absorbance. Gas phase photocatalytic splitting of heavy water (D2O) shows that the Pt nanocluster-decorated TiO2 outperforms Pt nanoparticle (produced by photodeposition) decorated TiO2 in D2 production. Pt nanoclusters, produced directly from a commercial source, with high co-catalyst activity, are prime candidates to be used in benchmark photocatalytic reactions.</jats:p>
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C-Journal of Carbon Research
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4
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4
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© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
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Nanotechnology
Nanomaterials
Science & Technology
Technology
Materials Science, Multidisciplinary
photocatalysis
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Shearer, CJ; Alvino, JF; Batmunkh, M; Metha, GE, Pt Nanocluster Co-Catalysts for Photocatalytic Water Splitting, C-Journal of Carbon Research, 2018, 4 (4)