Preparation and Analysis of Anatase TiO₂ Nanosheets with an Optimal Percentage of {001} Facets for High Efficient Photocatalyst

Abstract:

Anatase TiO₂ nanosheets with different percentage of exposed high-reactive {001} facets were synthesized successfully. Besides the FESEM and TEM anslysis, XRD, Raman, and PL analysis were also conducted systematically to give a new insight on analyzing the as-prepared {001} facets dominated TiO₂ photocatalysts. Photocatalytic activities of the photocatalysts were tested by the degradation of methylene blue (MB) aqueous solution under UV irradiation. The results indicated that there was an optimal percentage of the exposed {001} facets existed to give the highest photocatalytic activity of as-prepared TiO₂ nanosheets. A possible mechanism for the enhanced photocatalytic activity of the {001} facets dominated anatase TiO₂ was also proposed.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 429-434
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.429
• Online since: August 2013
• Authors: Wei Wang, Chun Hua Lu*, Ya Ru Ni, Zhong Zi Xu
• Keywords: {001} Facet, Crystal Growth, Luminescence, Photocatalysis, TiO₂

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