帮我对以下英文进行语言和语法润色Membrane separation has been widely employed in printing and dyeing wastewater treatment PDW for selective separation of dyessalt mixtures However the current low membrane flux and ine

Membrane separation has been widely utilized in the treatment of printing and dyeing wastewater (PDW) for the selective separation of dye/salt mixtures. However, the current low membrane flux and inevitable fouling issues significantly decrease treatment efficiency. In this study, a hydrophilic and photocatalytic powder known as TA@MIL-53(Fe) was prepared through the surface functionalization and etching of tannins (TA). Subsequently, a novel high-throughput self-cleaning composite membrane was developed by incorporating photocatalytic active materials into the polyamide (PA) selection layer using vacuum filtration assisted technology. SEM, AFM, FTIR, and UV-vis techniques were employed to investigate the influence of materials on composite films and the photocatalytic self-cleaning mechanism. The results revealed that the composite membrane exhibited optimal performance when the amount of TA@MIL-53(Fe) added was 0.02 wt%. At this composition, the membrane demonstrated a flux of 64.2 L·m-2·h-1·bar-1, with the dye retention rate for MB and TB remaining above 95%. However, the salt removal rate of the prepared membrane was low. Furthermore, compared to the membrane flux recovery (FRR) achieved through hydraulic flushing, the FRR of the MPTA-0.02 composite membrane after photocatalytic self-cleaning reached 96.5%. Additionally, the MPTA-0.02 composite film exhibited excellent self-cleaning performance and long-term stability. These findings present a new approach for developing dyes/salt separation membranes with outstanding antifouling properties