Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 25, Issue 31, Pages 31250-31261Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-018-3113-9
Keywords
TiO2; {001} facets; Core-shell; Mesoporous; Photocatalytic
Categories
Funding
- National Key Research and Development Program of China [2016YFC0700901, 2016YFC0700607]
- [BZZ14J001]
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TiO2 microstructures were synthesized via a facile one-step route for enhanced intrinsic photocatalytic performance. The prepared TiO2 microstructures are featured by both mesoporous core-shell structures and coexposed {001}/{101} facets. Their intrinsic photocatalytic performance were remarkably enhanced due to their high specific surface area, coexposed {001}/{101} facets, and promoted separation of photogenerated carriers. Furthermore, the origin and detailed mechanism for diethylenetriamine (DETA) that served as a high efficient stabilizer of TiO2 {001} facet have been theoretically investigated. Finally, a new DETA-modified Ostwald ripening mechanism was originally proposed when studying the growth mechanism of the mesoporous core-shell TiO2 spherical microstructures with coexposed {001}/{101} facets.
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