首先，以水热法或溶剂热法合成了可见光响应的纳米结构钒酸铋、钨酸铋、氯氧铋、溴氧铋、碘氧铋氧化物，研究了纳米Bi2WO6/ITO薄膜光电阳极在光电催化降解RhB的过程中光电协同作用。其次，制备了 Fe@Fe2O3纳米线和Cu2O纳米立方块，构建了基于Fe@Fe2O3/AFC和Cu2O/CNTs/PTFE氧阴极的异相E-Fenton水处理体系，研究了E-Fenton反应分别在酸性和中性pH条件下降解RhB效率、稳定性、反应机制。最后，设计了双池结构可见光响应的光电催化-Fenton反应体系，发现双池体系中光电阳极池中的光电催化与氧阴极池中的Fenton氧化具有明显协同作用，进一步揭示了"双池双效"协同作用机理，研究了影响"双池双效"光电催化-Fenton体系降解效率的条件因素。本项目研究的可将光响应光电催化-Fenton体系不但能有效利用太阳能，拓展Fenton反应的pH值适用范围，更重要的是能避免单池结构体系中阴极还原氧气生成的H2O2等活性物质在阳极附近的损耗，提高能量利用率。本项目为双池结构光电催化-Fenton体系的工程应用提供理论基础和技术支持。

Firstly, a series of visible-light driven nanostructural photocatlaysts, including BiVO4, Bi2WO6, BiOCl, BiOBr, and BiOI were synthesized through hydrothermal/solvothermal method, we studied the degradation of RhB and the synergistic in the photo-electro-chemical catalytic process based on the developed nanostructured Bi2WO6/ITO film electrode. Secondly, Fe@Fe2O3 nanowires and Cu2O nanocubes were prepared successfully, we developed heterogeneous E-Fenton system for wastewater treatment based on the resulting Fe@Fe2O3/ACF and Cu2O/CNTs/PTFE composite cathodes, and we studies the degradation of RhB under wide pH range, as well as the stability of the electrodes and reaction mechanism of the degradation. Lastly, a novel combined system composing both of photo-electro-chemical anodic cell and electro-Fenton cathodic cell (PEC-E-Fenton) for wastewater treatment were developed. A Bi2WO6/ITO nanoplates electrode was used to photo-electro-chemically degrade RhB under visible light in the anodic cell, while the composite of Fe@Fe2O3/ACF or Cu2O/CNTs/PTFE was used as the gas diffusion cathode for E-Fenton oxidation in the cathodal cell, where hydrogen peroxide was electro-generated and iron ions/copper ions was leaked from Fe@Fe2O3 or Cu2O in-situ. It was found that there is an obvious synergistic effect between photo-electro-chemical catalysis in the anodic cell and the E-Fenton oxidation in the cathodal cell. We further studied the mechanism of the synergistic effect between the anodic chamber and the cathodal chamber in this PEC-E-Fenton system as well as the parameters affecting the degradationh efficiency. This project provided a novel system which can make use of solar light as well as broaden the pH value during Fenton reaction, more importantly, it provided a cost saving method to make use of electricity. The reduction of energy and cost in the developed novel PEC-E-Fenton system will promote its application in wastewater treatment.

首先，以水热法或溶剂热法合成了可见光响应的纳米结构钒酸铋、钨酸铋、氯氧铋、溴氧铋、碘氧铋氧化物，研究了纳米Bi2WO6/ITO薄膜光电阳极在光电催化降解RhB的过程中光电协同作用。其次，制备了 Fe@Fe2O3纳米线和Cu2O纳米立方块，构建了基于Fe@Fe2O3/AFC和Cu2O/CNTs/PTFE氧阴极的异相E-Fenton水处理体系，研究了E-Fenton反应分别在酸性和中性pH条件下降解RhB效率、稳定性、反应机制。最后，设计了双池结构可见光响应的光电催化-Fenton反应体系，发现双池体系中光电阳极池中的光电催化与氧阴极池中的Fenton氧化具有明显协同作用，进一步揭示了"双池双效"协同作用机理，研究了影响"双池双效"光电催化-Fenton体系降解效率的条件因素。本项目研究的可将光响应光电催化-Fenton体系不但能有效利用太阳能，拓展Fenton反应的pH值适用范围，更重要的是能避免单池结构体系中阴极还原氧气生成的H2O2等活性物质在阳极附近的损耗，提高能量利用率。本项目为双池结构光电催化-Fenton体系的工程应用提供理论基础和技术支持。