In this study, the porous poly(vinylidene fluoride)/polyaniline-montmorillonite mixed matrix membranes (noted as the PVDF/PANI/MT membrane) were prepared using a non-solvent induced phase inversion method. The amounts of poly(vinylidene fluoride) (PVDF), polyvinylpyrrolidone (PVP), polyaniline (PANI), and montmorillonite (MT) were adjusted such that the synthesized membrane presented appropriate sponge-like structure. Results revealed that the PVDF/PANI/MT membrane with 20.0 wt% PVDF, 3.3 wt% PVP, 5.0 wt% PANI, and 12.0 wt% MT in the solvent N-methyl-2-pyrrolidone achieved the highest removal of antibiotic tetracycline (TC) from water. The adsorption isotherms of TC on the prepared membranes were well fitted by the Langmuir equation, which yielded an adsorption capacity of TC of 51.0 mg/g at 25°C and pH 6.0 on the PVDF/PANI/MT membrane. Using 0.05 mol/L of NaOH solution, the used PVDF/PANI/MT membrane could be regenerated up to 81%. The reusability of the prepared mixed matrix membrane was also examined and the cross-flow filtration-adsorption tests were finally conducted to evaluate the feasibility of the membranes for continuous operation.

在这项研究中，使用非溶剂诱导相转化方法制备了多孔聚偏二氟乙烯/聚苯胺-蒙脱土混合基质膜（称为PVDF / PANI / MT膜）。调节聚偏二氟乙烯（PVDF），聚乙烯吡咯烷酮（PVP），聚苯胺（PANI）和蒙脱石（MT）的量，以使合成膜呈现合适的海绵状结构。结果显示在溶剂N-甲基-2-吡咯烷酮中具有20.0 wt％PVDF，3.3 wt％PVP，5.0 wt％PANI和12.0 wt％MT的PVDF / PANI / MT膜对抗生素四环素（TC ）。TC在制备的膜上的吸附等温线通过Langmuir方程很好地拟合，在25°C时TC的吸附容量为51.0 mg / g在PVDF / PANI / MT膜上的°C和pH 6.0。使用0.05 mol / L的NaOH溶液，用过的PVDF / PANI / MT膜可再生至81％。还检查了所制备的混合基质膜的可重复使用性，最后进行了错流过滤吸附试验，以评估该膜连续运行的可行性。