【摘 要】
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Cementitious material is one of the potential substrates for widely practical application of photocatalysis.The loading effect and photocatalytic performanc
【机 构】
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State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan
【出 处】
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The 14th International Congress on the Chemistry of Cement (
论文部分内容阅读
Cementitious material is one of the potential substrates for widely practical application of photocatalysis.The loading effect and photocatalytic performance were investigated by loading nano-TiO2 on the porous magnesium oxychloride cement in different hydration periods.Nano-TiO2 were loaded on 7d, 14d, 21d, 28d hydrated porous magnesium oxychloride cement by vacuum negative pressure method.The results show that the cement based photocatalytic material presented high photocatalytic efficiency.In middle and later cement hydrated period, the needle shape crystal of phase 5 grew well, which benefit the surface nano-TiO2 photocatalyst dispersing into the interspace of phase 5 and the combination between the photocatalyst and the phase 5.
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