Journal
CHEMSUSCHEM
Volume 12, Issue 2, Pages 467-472Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201802485
Keywords
plasmonic photocatalysis; solar evaporation; water treatment; wood carbon
Funding
- National Natural Science Foundation of China [21475125, 21175125, 51502286]
- Hundred Talents Program of the Chinese Academy of Sciences
- State Key Laboratory of Electroanalytical Chemistry [110000R387]
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A ternary Pt/Au/TiO2 nanoparticle (NP) decorated plasmonic wood carbon has been successfully fabricated by a simple two-step calcination method. The as-prepared Pt/Au/TiO2 NP-decorated wood carbon showed an interfacial solar steam generation efficiency up to 90.4%. Furthermore, the floating system exhibits an excellent photodegradation of tetracycline (TC; 40 mg L-1). Up to 94% degradation was achieved after 80 min of continuous light irradiation (lambda > 420 nm) with the assistance of solar steam process. The photocatalysis is promoted by the introduction of Pt/Au nanocomponents, which suppress the recombination of electron-hole pairs generated on TiO2 and facilitate electron transfer. High-performance liquid chromatography mass spectrometry was employed to identify the reaction products of the photocatalytic system and a mechanistic insight was also provided. The as-prepared three-dimensional plasmonic wood carbon has a high photocatalytic performance. Such wood carbon-based system is recyclable and scalable for practical and versatile solar-driven clean water generation.
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