CIESC Journal ›› 2016, Vol. 67 ›› Issue (5): 1915-1921.doi: 10.11949/j.issn.0438-1157.20151401

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Visible near-infrared amino phthalocyanine-titanium dioxide photocatalyst: preparation and performance

XU Yanming, ZHAO Ming, LI Jian, REN Qiang, WANG Chenyi   

  1. School of Material Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
  • Received:2015-09-06 Revised:2015-11-03 Online:2016-05-05 Published:2015-11-17

Abstract:

An α-TDMACuPc-TiO2 photocatalyst was prepared through Sol-Gel method using 3,3',3",3"'-tetra-dimethylamino copper(Ⅱ) phthalocyanine (α-TDMACuPc) of a soluble amino phthalocyanine as a sensitizer. The photocatalyst was characterized by ultraviolet-visible spectroscopy (UV-Vis) and X-ray diffraction (XRD). Its photocatalytic performance for the degradation of methyl violet was evaluated. It showed that α-TDMACuPc sensitizer exhibited strong absorption in near-infrared region, and the absorption spectrum of sensitized TiO2 could be extended to visible near-infrared light region. Besides, the sensitized TiO2 features rutile structure. Its sensitization by α-TDMACuPc significantly improved the photocatalytic activity of TiO2 in visible near-infrared light region. The α-TDMACuPc-TiO2 photocatalyst with 1%(mass) α-TDMACuPc exhibited the highest catalytic activity as well as relatively good stability.

Key words: amino phthalocyanine, sensitization, titanium dioxide, visible near-infrared photocatalyst, absorption, catalysis, degradation

CLC Number: 

  • O643

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