Preparation Gd/N-Codoped TiO₂ Photocatalyst to Remove TOC in Power Plant Boiler Make-Up Water

Abstract:

A series of Gd/N codoped nanoTiO₂ photocatalyst were synthesized to remove TOC in Power plant Boiler Make-up Water. The catalysts were prepared by sol–gel method and characterized by the means of XRD, TEM and UV-Vis DRS. Compared with pure TiO₂, the catalytic activity of the nanocomposite photo-catalyst was improved significantly. The experiment results show that the optimum amounts of Gd and N-codoped TiO₂ photocatalysts were 0.5 wt.% and 5mol %, respectively. Under the UV irradiation for 5 h at pH 3.0, the photocatalytic effect could be as high as 88% and the TOC removal efficiency was 81%, which indicates that photodegradation and mineralization of HA are synchronous, the two results correlate well.

• Periodical: Advanced Materials Research (Volumes 1010-1012)
• Pages: 211-215
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1010-1012.211
• Online since: August 2014
• Authors: Bo Yang*, Mao Dong Li, Hui Zhang, Ai Zhi Yu, Jin Mei Lin, Jun Ming Zhao, Shi Ping Li
• Keywords: Boiler Make-Up Water, Gd/N-Codoped, Photocatalytic Degradation, TiO₂, TOC

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