Preparation and Properties of Titanium Dioxide-Based Composite Photocatalytic Materials

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  • JIANG Xinxin
    Graduate school of Engineering, Nagoya Institute of Technology
  • FUJI Masayoshi
    Graduate school of Engineering, Nagoya Institute of Technology

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  • 二酸化チタンベースの複合光触媒の調製と性能分析

Abstract

<p>Non-precious Cu2O and Cu loaded hydrogenated black TiO2 nanoparticles were prepared, and the H2 evolution and the removal of a water based organic pollutant under UV light were studied. The results revealed that the B-TiO2/Cu2O/Cu (TC6-350) sample exhibited an improved photocatalytic hydrogen evolution performance, about 47 times higher than that of the TiO2, and photocatalytic degradation of the Rhodamine B aqueous solution about 2.2 times faster than the TiO2. The enhanced photocatalytic activity can be attributed to the integration of energy band alignment, effective carrier separation, and low charge transfer resistance. In addition, the constructed B-TiO2/Cu2O/Cu nanocomposite exhibited light stability, making it a long-term competitive photocatalyst for H2 evolution. Therefore, the B-TiO2/Cu2O photocatalyst is a promising candidate for a variety of photocatalytic applications.</p>

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