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Updated: Sep 23, 2025

Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition
Published on: May 2, 2014
Hydrogen production from methanol aqueous solution by ZnO/Zn(OH)2 macrostructure photocatalysts
Yilun Wu1, Shan Zeng2, Yanhui Dong1
1State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University Changchun Jilin 130012 China syyin@jlu.edu.cn wpqin@jlu.edu.cn.
Abstract:
Photocatalytic H2 generation was studied for a series of ZnO/Zn(OH)2 macrostructure photocatalysts. Different ZnO/Zn(OH)2 macrostructures were prepared through a one-step hydrothermal method by adjusting the pH values of the solution and the concentration of dodecyl sulfate. Three different morphologies of the ZnO/Zn(OH)2 macrostructure were synthesized and studied using SEM and XRD. The reflectance spectra revealed that the cone shaped ZnO/Zn(OH)2 macrostructure (ZnO-C) had the lowest reflectivity of UV light. It was found that the photoelectronic properties depend on the morphology of the ZnO/Zn(OH)2 macrostructures. The photocatalytic activity of these ZnO/Zn(OH)2 macrostructure hybrids (about 0.070 mmol g-1 h-1) were higher than that observed for ZnO nanorods (0.050 mmol g-1 h-1). These results suggest the substantial potential of metal oxide materials with macrostructures in photocatalytic water splitting applications.
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