Investigations into the surface chemistry of Arsenite with bifunctional metal oxides

本项目研究了具有光氧化和吸附能力的金属氧化物在清除地下水源中的砷，特别是As（III）方面的潜在应用。该项目目前正在使用介孔TiO 2/Fe 2 O3材料，将使用能够预测一系列水条件下吸附能力的模型来表征吸附过程。该项目还将测试双复合材料的光氧化性能，旨在通过带隙调整，光催化剂或合成过程的变化以及优化辐照设置来提高As（III）的氧化速率。吸附和光氧化将通过柱调查相结合，目的是设计一种能够从真实的地下水源中有效去除As（III）的装置。

This project investigates the potential application of metal oxides with both photo-oxidation and adsorption capacities for the scavenging of arsenic, particularly As(III), from groundwater sources. Currently working with mesoporous TiO2/Fe2O3 materials, the project will see characterisation of the adsorption process performed with a model capable of predicting adsorption capacities under a range of water conditions developed. The project will also characterise the photo-oxidation performance of the bicomposite materials with the aim to enhance As(III) oxidation rates through band-gap tuning, changes in the photocatalyst or the synthetic procedure, and optimising the irradiation setup. Adsorption and photo-oxidation will be combined through column investigations with the aim of engineering a device capable of efficient As(III) removal from real groundwater sources.