Removal of Gas-Phase Elemental Mercury by Photocatalytic with Liquid Absorption

Abstract:

In order to study the influence of UV irradiation, treat temperature of nano-titanium dioxide and intensity of UV irradiation on the mercury removal performance, experiments were carried out on a photocatalytic oxidization system to find the best experimental conditions. Commercial Degussa P25 was used as a photocatalyst loading on titanium mesh, and the mercury removal efficiency was stable at 8% in the absence of UV irradiation. Under the UV irradiation of 300W mercury lamp, the mercury removal efficiency surged to 100%. With the same light intensity, the same removal time, the mercury removal efficiency of nano-titanium dioxide calcinated at 100°C reached 92.2% after 0.5h while the mercury removal efficiency of nano-titanium dioxide calcinated at 500°C reached 93.6%. Intensity of UV irradiation has a positive impact on the mercury removal performance.

• Periodical: Advanced Materials Research (Volumes 424-425)
• Pages: 430-434
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.424-425.430
• Online since: January 2012
• Authors: Jie He Chen, Min Yu Sun, Jiang Wu, Ping He, Wei Guo Pan, Jian Xing Ren, Wen Gao, Hai Yan Luo, Xiao Ying Zhang, Ji Hui Fang
• Keywords: Mercury, Photocatalytic Oxidation, TiO₂, Uv Irradiation

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