[Paper] Advanced Powder Technology

F. G. Rinaldi, A. F. Arif, T. Ogi*, K. Okuyama, E. Tanabe :Strong Metal-Support Interactions (SMSIs) between Pt and Ti3+ on Pt/TiOx Nanoparticles for Enhanced Degradation of Organic Pollutant, Advanced Powder Technology (IF=2.659), just accepted.

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.