【摘要】 针对乳化液废水形成的碳排放而引发的环境负担，提出以自主合成的W/C₃N₄@陶土复合光催化材料用于降解模拟乳化液废水，从而实现“碳达峰，碳中和”的建设。采用SEM、FT-IR、XRD、XPS等对复合材料的结构性质进行表征，并探究模拟乳化液废水的油水分离现象和影响光催化性能的因素。结果表明：在模拟乳化液废水pH为7、反应时间为180 min的条件下，先进行光催化破乳，模拟乳化液废水的油水分离效率为84.3%且油水分离后的模拟乳化液废水在光学显微镜下有微量油滴；光催化继续降解剩余在水中的溶解油和表面活性剂，其总有机碳（total organic carbon, TOC）去除率为61.9%,达到废水排放的标准；W/C₃N₄@陶土经循环使用5次后其TOC去除率仅下降1.8%,表明在降解过程中催化材料的损耗量较少，所以能保持较高的反应活性。更多还原

【Abstract】 Aiming at the environmental burden caused by carbon emission from emulsion wastewater, an independently synthesized W/C₃N₄@ceramic composite photocatalytic material was proposed to degrade emulsion simulated wastewater, so as to achieve the construction of carbon peak carbon neutrality. The structural properties of the composites were characterized by SEM, FT-IR, XRD and XPS, and the factors affecting the oil-water separation and photocatalytic performance of the emulsion were investigated. The results show that pH of the simulated emulsion wastewater is 7, and the reaction time is 180 min, photocatalytic demulsification was performed to separate the oil and water which the oil-water separation efficiency is 84.3%, and the emulsion simulated wastewater after oil and water separation has a small amount of oil droplets under the optical microscope; The photodegradation experiment of simulated emulsion wastewater by photocatalytic materials is carried out, and the total organic carbon（TOC） removal rate is 61.9%, which is higher than the discharge standard of emulsion wastewater; The TOC removal rate of the composites decreases by 1.8% after 5 cycles, indicating that the catalyst loss in the degradation process is less and the reaction activity is maintained at a higher level.更多还原