Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 289, Issue 1-3, Pages 207-211Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2006.04.049
Keywords
photocatalyst; phthalocyanine; photosensitization; TiO2 particles; methyl orange; visible light
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A novel method has been developed to synthesize anatase nano-photocatalyst of copper phthalocyanine tetrasulfonate (CuPcTs) in hydrothermal condition. When TiO2 was synthesized by an in situ synchronous process, the surface of TiO2 particles adsorbed sensitizers. The photocatalyst was characterized by XRD, TEM and UV-vis spectrophotometer techniques. It was found that TiO2 powder could be sensitized to have wavelength beyond its intrinsic sensitivity using phthalocyanine. Its efficiency was tested with methyl orange (MO) under visible light by UV-vis spectrophotometer. All the photodegradations of MO must experience a dye-sensitized TiO2 photocatalytic mechanism. (c) 2006 Elsevier B.V. All rights reserved.
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