Structurally controlled ZnO/TiO2 heterostructures as efficient photocatalysts for hydrogen generation from water without noble metals: The role of microporous amorphous/crystalline composite structure
Structurally controlled ZnO/TiO2 heterostructures as efficient photocatalysts for hydrogen generation from water without noble metals: The role of microporous amorphous/crystalline composite structure
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DOI：
10.1016/j.jpowsour.2013.07.044
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发表时间：
2014-01-01
影响因子：
9.2
通讯作者：
Li, Jian
中科院分区：
文献类型：
--
作者：
Guo, Siyao;Han, Song;Li, Jian
本发明开发了一种基于低温水热技术的多功能合成方法，用于制备具有不同结构（例如，无定形、无定形/结晶和结晶）。特别地，在Ti/Zn的比例为3/1 M的情况下，获得了具有非晶/晶体结构的新型微孔ZnO/TiO 2复合材料。这种新型的ZnO/TiO 2复合异质结构不仅具有大的比表面积（311.9 m（2）g（-1）），而且在没有贵金属助催化剂的情况下在太阳能水裂解反应中表现出优异的性能。基于我们深入的机理分析，非晶ZnO和晶体TiO 2之间的协同效应是该材料性能增强的原因。(C)2013爱思唯尔有限公司版权所有。
A versatile synthetic method, which is based on a low-temperature hydrothermal technique, is developed for the fabrication of a microporous ZnO/TiO2 composite catalyst with different structures (e.g., amorphous, amorphous/crystalline and crystalline). In particular, a novel microporous ZnO/TiO2 composite with amorphous/crystalline structure is obtained with a 3/1 M ratio of Ti/Zn. This novel ZnO/TiO2 composite heterostructure not only has a large specific surface area (311.9 m(2) g(-1)) but also exhibits outstanding performance during solar water splitting reactions to generate hydrogen without a noble metal co-catalyst. Based on our in-depth mechanistic analysis, the synergistic effect between the amorphous ZnO and crystalline TiO2 is responsible for the enhanced performance of this material. (C) 2013 Elsevier B.V. All rights reserved.