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AuthorZhang, Wei
AuthorHe, Haili
AuthorTian, Yong
AuthorLan, Kun
AuthorLiu, Qi
AuthorWang, Changyao
AuthorLiu, Yang
AuthorElzatahry, Ahmed
AuthorChe, Renchao
AuthorLi, Wei
AuthorZhao, Dongyuan
Available date2020-06-23T20:45:40Z
Publication Date2019
Publication NameChemical Science
ResourceScopus
ISSN20416520
URIhttp://dx.doi.org/10.1039/c8sc04155e
URIhttp://hdl.handle.net/10576/15107
AbstractAs a benchmark photocatalyst, commercial P25-TiO 2 has been widely used for various photocatalytic applications. However, the low surface area and poorly porous structure greatly limit its performance. Herein, uniform ordered mesoporous TiO 2 microspheres (denoted as Meso-TiO 2 -X; X represents the rutile percentage in the resultant microspheres) with controllable anatase/rutile phase junctions and radially oriented mesochannels are synthesized by a coordination-mediated self-assembly approach. The anatase/rutile ratio in the resultant microspheres can be facilely adjusted as desired (rutile percentage: 0-100) by changing the concentration of hydrochloric acid. As a typical one, the as-prepared Meso-TiO 2 -25 microspheres have a similar anatase/rutile ratio to commercial P25. But the surface area (78.6 m 2 g -1 ) and pore volume (0.39 cm 3 g -1 ) of the resultant microspheres are larger than those of commercial P25. When used as the photocatalyst for H 2 generation, the Meso-TiO 2 -25 delivers high solar-driven H 2 evolution rates under air mass 1.5 global (AM 1.5 G) and visible-light (? > 400 nm), respectively, which are significantly larger than those of commercial P25. This coordination-mediated self-assembly method paves a new way toward the design and synthesis of high performance mesoporous photocatalysts. - 2019 The Royal Society of Chemistry.
SponsorThis work was supported by the State Key Basic Research Program of the PRC (2016YFA0204000, 2017YFA0207300 and 2018YFA0209401), NSFC of China (Grant No. U1463206, 21603036 and 21733003), and Key Basic Research Program of Science and Technology Commission of Shanghai Municipality (17JC1400100). The authors acknowledge the International Scienti?c Partnership Program ISPP at King Saud University for funding this research work through ISPP# 0018.
Languageen
PublisherRoyal Society of Chemistry
SubjectBenchmarking
Coordination reactions
Mesoporous materials
Microspheres
Oxide minerals
Titanium dioxide
TitleSynthesis of uniform ordered mesoporous TiO 2 microspheres with controllable phase junctions for efficient solar water splitting
TypeArticle
Pagination1664-1670
Issue Number6
Volume Number10
dc.accessType Open Access


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