可见光驱动光电类芬顿催化反应器的构建及其对含硫有机废水的高效降解研究

Sulfide wastewater in chemical, pharmaceutical, printing and dyeing industry always cause a foul smell， and therefore, increase the difficulty and cost for sewage treatment. The sulfur-tolerant Fenton-like photocatalysts were designed and combined with the functional carbon electrode to produce H2O2 by electrochemical reduction of oxygen and in situ generate highly active •OH radical for environmental remediation. The physical and chemical properties of the modified functional carbon electrode surface were analyzed to reveal the binding mechanism between different photocatalysts and functional carbon electrode. A novel visible-light-driven photo-electro-Fenton-like (PEF) reactor was constructed for efficient degradation of sulfur-containing organic wastewater, which was no need to add any chemical reagents and special photocatalysts separation equipment. The effects of different sulfide and sulfur-containing organic pollutants on the degradation performances of PEF reactor were investigated. Furthermore, the optimum operating conditions of PEF reactor and the degradation mechanism of the typical organic contaminants were also studied for its practical application.

化工、制药以及印染行业产生大量含硫有机废水，不仅造成水体的恶臭污染，还增加了污水的降解难度和处理成本。本项目旨在构建可见光驱动光电类芬顿催化反应器用于处理含硫有机废水。从电极材料，类芬顿催化材料以及反应机理三方面进行研究，设计了具有抗硫性能和光芬顿性能的光催化剂，并将其负载到功能碳电极材料上，制得既能产H2O2又可以原位激活H2O2产•OH的改性功能碳电极材料。同时，深入研究改性功能碳电极表面的物理化学性质，分析不同光催化剂跟功能碳电极的结合机理；探究不同类型含硫有机废水对改性功能碳电极光电类芬顿催化性能的影响，揭示改性功能碳电极对含硫有机废水的作用机制以及典型有机污染物的降解机理，构建无需添加任何化学试剂和额外分离光催化剂的光电类芬顿催化反应器，实现其对含硫有机废水的高效降解，为光电类芬顿催化技术实际应用提供理论基础和科学依据。

化工、制药以及印染行业会产生大量含硫有机废水，不仅造成水体的恶臭污染，还增加了污水的降解难度和处理成本。本项目旨在构建可见光驱动光电类芬顿催化反应器用于处理含硫有机废水。从电极材料，类芬顿催化材料以及反应机理三方面进行研究，设计了具有耐硫性能和光芬顿性能的光催化剂，并将其负载到功能碳电极材料上，制得既能产H2O2又可以原位激活H2O2产羟基自由基的改性功能碳电极材料；深入研究改性MesoC/GF电极表面的物理化学性质以及光催化剂跟MesoC/GF电极的结合机理；探究有机废水中的不同无机硫化物以及含硫有机污染物对改性MesoC/GF电极光电类芬顿催化性能的影响，揭示改性MesoC/GF电极对不同含硫废水中有机污染物的作用机制，最终构建无需添加任何化学试剂和额外分离光催化剂的光电类芬顿催化反应器，实现其对含硫有机废水的高效降解。课题旨在为光电类芬顿催化技术在处理含硫有机废水中的进一步优化与放大提供理论基础和科学依据。