期刊
APPLIED SURFACE SCIENCE
卷 353, 期 -, 页码 714-722出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2015.06.133
关键词
Single-crystal-like; TiO2; {111}; Lysine; Biomolecule-inspire method
类别
资金
- National Natural Science Foundation of China [21173046, 21473031, 21273035]
- Science & Technology Plan Project of Fujian Province [2014Y2003]
- National Basic Research Program of China (973 Program) [2013CB632405]
Single-crystal-like TiO2 hierarchical spheres, which own the advantages of both high energy facets and big surface area, were successfully synthesized via a biomolecule-inspire method. Exposed facets of these TiO2 samples were custom-designed by controlling the additive amount of L-lysine. The formation mechanism was preliminary studied. Single-crystal-like TiO2 seems to grow through a facile oriented growth mechanism with the help of the capping synergetic effect of SO42- and lysine. Only appropriate ratios of lysine to SO42- can help the formation of single-crystal-like anatase TiO2 with exposed {1 0 1}, {1 1 1} planes. Both high surface area and the exposure of peculiar planes can enhance photocatalytic activity. (C) 2015 Elsevier B.V. All rights reserved.
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