A Facile and Waste-Free Strategy to Fabricate Pt-C/TiO2 Microspheres: Enhanced Photocatalytic Performance for Hydrogen Evolution

作者：Li, Hui; Zhang, Xiaoyan; Cui, Xiaoli^*

来源：International Journal of Photoenergy, 2014, 2014: 414281.

DOI：10.1155/2014/414281

• CARBON-INCORPORATED TIO2
• CALCINATION TEMPERATURE
• H-2 PRODUCTION
• DOPED TIO2
• PLATINUM
• NANOCOMPOSITES
• NANOPARTICLES
• PHOTODEGRADATION
• OXIDATION
• REDUCTION

A facile and waste-free flame thermal synthesis method was developed for preparing Pt modified C/TiO2 microspheres (Pt-C/TiO2). The photocatalysts were characterized with X-ray diffraction, field emission scanning electron microscopy, transmission electron microscope, ultraviolet-visible (UV-vis) diffuse reflectance spectra, X-ray photoelectron spectroscopy, and thermogravimetry analysis. The photocatalytic activity was evaluated by hydrogen evolution from water splitting under UV-vis light illumination. Benefitting from the electron-hole separation behavior and reduced overpotential of H+/H-2, remarkably enhanced hydrogen production was demonstrated and the photocatalytic hydrogen generation from 0.4 wt% Pt-C/TiO2 increased by 22 times. This study also demonstrates that the novel and facile method is highly attractive, due to its easy operation, requiring no post treatment and energy-saving features.

• 出版日期2014
• 单位中国科学院上海光学精密机械研究所; 复旦大学