Photocatalytic membranes are the most effective solution for dye wastewater treatment and membrane pollution reduction, among them, how to improve the visible light responsiveness of photocatalytic membranes is the focus of research in this direction. In this paper, a novel Δ(Z + II)-type photocatalyst with visible light responsiveness was prepared using YVO4-modified dual-precursorgraphitic carbon nitride (U6M1). The Nonsolvent Induce Phase Separation (NIPS) was used to create the YVO4/U6M1/PES membrane, which gave the membrane photocatalytic capacity. The efficiency of removing rhodamine B(RhB) reached 99 % within 120 min, and the separation efficiency of Acid Red 18(AR-18) reached 95.1 % within 150 min. In addition, the membrane also has certain self-cleaning capabilities and can maintain a separation efficiency of more than 89 % after 5 cycles. As a green material, the composite membrane loaded with YVO4/U6M1 photocatalyst has great potential in the practical application of dye wastewater treatment.

中文翻译：

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用于快速染料降解的可见光响应 YVO4/U6M1/PES 复合膜


光催化膜是染料废水处理和减少膜污染的最有效解决方案，其中，如何提高光催化膜的可见光响应性是该方向的研究重点。本文利用 YVO4 改性的双前驱体石墨氮化碳 （U6M1） 制备了一种具有可见光响应性的新型 Δ（Z + II） 型光催化剂。非溶剂诱导相分离 （NIPS） 用于制造 YVO4/U6M1/PES 膜，从而赋予膜光催化能力。120 min内去除罗丹明B（RhB）的效率达到99 %，酸红18（AR-18）的分离效率在150 min内达到95.1 %。此外，该膜还具有一定的自清洁能力，可在 5 次循环后保持 89% 以上的分离效率。负载 YVO4/U6M1 光催化剂的复合膜作为一种绿色材料，在染料废水处理中具有很大的实际应用潜力。