Design and Synthesis of TiO2 Hollow Spheres with Spatially Separated Dual Cocatalysts for Efficient Photocatalytic Hydrogen Production

Qianqian Jiang; Li Li; Jinhong Bi; Shijing Liang; Minghua Liu

doi:10.3390/nano7020024

Nanomaterials (Jan 2017)

Design and Synthesis of TiO2 Hollow Spheres with Spatially Separated Dual Cocatalysts for Efficient Photocatalytic Hydrogen Production

Qianqian Jiang,
Li Li,
Jinhong Bi,
Shijing Liang,
Minghua Liu

Affiliations

Qianqian Jiang: Department of Environmental Science and Engineering, Fuzhou University, Minhou 350108, China
Li Li: Department of Environmental Science and Engineering, Fuzhou University, Minhou 350108, China
Jinhong Bi: Department of Environmental Science and Engineering, Fuzhou University, Minhou 350108, China
Shijing Liang: Department of Environmental Science and Engineering, Fuzhou University, Minhou 350108, China
Minghua Liu: Department of Environmental Science and Engineering, Fuzhou University, Minhou 350108, China

DOI: https://doi.org/10.3390/nano7020024
Journal volume & issue: Vol. 7, no. 2
p. 24

Abstract

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TiO2 hollow spheres modified with spatially separated Ag species and RuO2 cocatalysts have been prepared via an alkoxide hydrolysis–precipitation method and a facile impregnation method. High-resolution transmission electron microscopy studies indicate that Ag species and RuO2 co-located on the inner and outer surface of TiO2 hollow spheres, respectively. The resultant catalysts show significantly enhanced activity in photocatalytic hydrogen production under simulated sunlight attributed to spatially separated Ag species and RuO2 cocatalysts on TiO2 hollow spheres, which results in the efficient separation and transportation of photogenerated charge carriers.

Published in Nanomaterials

ISSN: 2079-4991 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: https://www.mdpi.com/journal/nanomaterials

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