Preparation of Floating TiO₂/EP by Hydrothermal Method

Abstract:

Most of photocatalytic reaction taken place in a slurry type reactor, which is of poor light utilization and difficulty to recycling of photocatalyst. To overcome these drawbacks, a floating photocatalyst (TiO₂/EP) was prepred by hrothermal method, in which EP(Expanded Perlite) was used as an substrate. Photocatalysts activity was evaluated under UV light using Rhodamine B as the pollutant model. The effect of heating temperature, heating time and dosage of EP on activity of TiO2/EP were Discussed. The results showed 2h and 200°C were the optimal conditions and the dosage of EP has no significant effect on activity of TiO₂/EP. The results of XRD and SEM showed TiO₂ is anatase form, well crystallized and dispersed; its particle size is about 100~150nm. This floating photocatalyst can remove about 97.4% rhodamine B(10mg/L) during 90min under UV light. It has broad prospects for engineering applications.

• Periodical: Advanced Materials Research (Volume 800)
• Pages: 13-17
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.800.13
• Online since: September 2013
• Authors: Jinlei Bao, Xiao Yuan Fan, Wei Ping Jin, Bi Bo Liu
• Keywords: Expanded Perlite, Floating Photocatalyst, Hydrothermal Method, Rhodamine B (RhB)

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