Nonaqueous seeded growth of flower-like mixed-phase titania nanostructures for photocatalytic applications

Journal Article · Wed Sep 15 00:00:00 EDT 2010 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2010.06.016· OSTI ID:21432460

Hsu, Y -C; Lin, H -C; Chen, C -H; Liao, Y -T ^[1]

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1. Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan (China)

A nonaqueous seeded-grown synthesis of three-dimensional TiO{sub 2} nanostructures in the benzyl alcohol reaction system was reported. The synthesis was simple, high-yield, and requires no structural directing or capping agents. It could be largely accelerated by applying microwave heating. The TiO{sub 2} nanostructures had a unique flower-like morphology and high surface area. Furthermore, the structural analyses suggested that the nanostructures had a non-uniform distribution of crystalline phases, with the inner part rich in anatase and the outer part rich in rutile. After heat treatments, the mixed-phase TiO{sub 2} nanostructures exhibited high photocatalytic activities for the photodegradation of methylene blue as compared to Degussa P25. The high photoactivities may be associated with the high surface area and the synergistic effect resulting from the anisotropic mixed-phase nanostructures. The results demonstrate the uniqueness of the nonaqueous seeded growth and the potential of the TiO{sub 2} nanostructures for practical applications. - Graphical abstract: Flower-like TiO{sub 2} nanostructures synthesized by a nonaqueous seeded growth without using any structural directing or capping agents.

• OSTI ID: 21432460
• Journal Information: Journal of Solid State Chemistry, Vol. 183, Issue 9; Other Information: DOI: 10.1016/j.jssc.2010.06.016; PII: S0022-4596(10)00267-7; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ANISOTROPY
BENZYL ALCOHOL
METHYLENE BLUE
MICROWAVE HEATING
MORPHOLOGY
NANOSTRUCTURES
PHOTOCATALYSIS
RUTILE
SURFACE AREA
SYNTHESIS
TITANIUM OXIDES
ALCOHOLS
AMINES
ANTI-INFECTIVE AGENTS
ANTIMICROBIAL AGENTS
AROMATICS
AZINES
CATALYSIS
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
DRUGS
HALIDES
HALOGEN COMPOUNDS
HEATING
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHENOTHIAZINES
RADIOACTIVE MATERIALS
RADIOACTIVE MINERALS
SURFACE PROPERTIES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS