Fabrication and characterization of well-dispersed plasmonic Pt nanoparticles on Ga-doped ZnO nanopagodas array with enhanced photocatalytic activity》.pdfVIP

Applied Catalysis B: Environmental 163 (2015) 156–166 Contents lists available at ScienceDirect Applied Catalysis B: Environmental j o u r na l h o m e pa g e : w w w. elsev /locate/apc atb Fabrication and characterization of well-dispersed plasmonic Pt nanoparticles on Ga-doped ZnO nanopagodas array with enhanced photocatalytic activity Hsien-Ming Chiu, Tung-Han Yang, Yang-Chih Hsueh, Tsong-Pyng Perng, Jenn-Ming Wu ∗ Department of Materials Science and Engineering, National Tsing Hua University, 101, sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan a r t i c l e i n f o a b s t r a c t Article history: Pt/GZO hybrid nanocomposites were formed by depositing Pt nanoparticles (NPs) using an atomic layer Received 30 December 2013 deposition (ALD) technique onto one-dimensional (1D) Ga-doped ZnO (GZO) nanopagodas (NPGs). The Received in revised form 24 June 2014 GZO NPGs were prepared by metal–organic chemical vapor deposition (MOCVD). The ALD deposited Pt Accepted 21 July 2014 NPs were well-dispersed and uniform on the surfaces of the GZO NPGs, which were much better than Available online 7 August 2014 Pt NPs prepared by conventional wet chemistry methods. Pt/GZO hybrid nanocomposites with 30 ALD cycles exhibited significant improvement in photocatalytic activity by about 2.7 times higher than GZO Keywords: NPGs under 254 nm UV illuminations. The effect of Pt NPs on photocatalytic activities of Pt/GZO hybrid MOCVD ZnO