Strong metal-support interactions (SMSIs) between Pt and Ti3+ on Pt/TiOx nanoparticles for enhanced degradation of organic pollutant |
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| Authors: | Febrigia Ghana Rinaldi Aditya Farhan Arif Takashi Ogi Kikuo Okuyama Eishi Tanabe |
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| Affiliation: | 1. Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima 739-8527, Japan;2. Product Design Division, Department of Production Technology, Western Hiroshima Prefectural Technology Research Institute, Kagamiyama 3-chome 13-6, Higashihiroshima 7390046, Japan |
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| Abstract: | In this work, Pt nanoparticles were deposited onto the surface of Magnéli phase titanium suboxide (TiOx) nanoparticles using a microwave-assisted deposition method. The effect of different concentrations of Pt nanoparticles was investigated to evaluate the strong metal-support interactions (SMSIs) between Pt and TiOx based on their performance for the degradation of organic pollutant molecules. The adsorption and catalytic performance of the as-synthesized Pt/TiOx nanoparticles were evaluated with respect to the degradation of rhodamine B (RhB) molecules without any external energy source. The Pt/TiOx nanoparticles with Pt loading at 10 wt% (10%Pt/TiOx) exhibited a remarkable performance. The XPS, CV, and FTIR analyses confirmed the presence of RhB degradation reactions under dark condition. This remarkable performance of the Pt/TiOx nanoparticles was attributed to the SMSIs between Pt and Ti3+ atoms, which improves their performance compared with Pt/TiO2 nanoparticles, and high density of active sites due to their nanometer size, which results in better performance compared with that of Pt/TiOx submicron particles. |
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| Keywords: | Water pollutant removal Degradation of organic material Strong metal-support interactions Titanium suboxide Catalytic performance Microwave synthesis |
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