Fig xA a UV ndash vis absorbance

AcknowledgementsFinancial support from the National Natural Science Foundation of China (no. 21401180), Provincial Natural Science Foundation of Anhui (1508085ME104), and Scientific Research Foundation for the Anhui Provincial Returned Overseas Chinese Scholars (Electrospun low dimensional TiO2 nano-structures and application in photovoltaic devices) CCT 031374 gratefully acknowledged.
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Keywords
Titanium dioxide; High-reactive 0 0 1 facets; Synthesis; Properties; Noble metals
1. Introduction
Semiconductor photocatalysis is an efficient method for the chemical utilization of solar energy. It is based on the surface trapping of light-generated charges which induce interfacial electron-transfer reactions with a great variety of substrates [1], [2] and [3]. Titanium dioxide has been widely used as a photocatalyst for the oxidation of organic pollutants due to its high photostability, commercial availability, low cost and relatively good activity. Literature data show that optical, magnetic, dielectric and chemical properties of a semiconductor particle are depended on the shape of the crystal particle, while an electrode experiment using single-crystal rutile TiO2 has indicated that photoelectrochemical properties also depend on the kind of exposed crystal face [4], [5], [6] and [7].