This study reports the fabrication and application of polyvinylidene fluoride (PVDF) ultrafiltration membranes embedded with various concentrations of the Cu₂S nanoparticles. The Cu₂S nanoparticles were generated from natural chalcocite applying a high energy planetary ball-milling technique. Non-solvent induced phase separation method was used for the fabrication of the membranes and characterized with scanning electron microscopy (SEM), energy dispersive X-ray (EDX), atomic force microscopy (AFM), porosity and static water contact angle measurements. The results of the contact angle and porosity revealed the increased hydrophilicity and porosity of the nanocomposite membranes as a result of the addition of Cu₂S leads to water permeation improvement. The nanocomposite membrane with 0.2 wt% of Cu₂S nanoparticles exhibited a maximum water flux of 248.25 Lm⁻² h⁻¹ and flux recovery ratio (FRR) value of 92.4%, which showed 65% and 19% increase compared with the control PVDF membrane. Meanwhile, the nanocomposite membranes were able to highly reject the anionic dyes such as reactive blue 21 (RB21), direct black 38 (DB38), and direct yellow 12 (DY12).

这项研究报告了嵌入各种浓度的Cu ₂ S纳米粒子的聚偏二氟乙烯（PVDF）超滤膜的制造和应用。Cu ₂ S纳米粒子是使用高能行星球磨技术从天然球晶石生成的。使用非溶剂诱导相分离法制备膜，并通过扫描电子显微镜（SEM），能量色散X射线（EDX），原子力显微镜（AFM），孔隙率和静态水接触角测量进行了表征。接触角和孔隙率的结果表明，由于添加了Cu ₂，纳米复合膜的亲水性和孔隙率提高了S导致水渗透性的改善。具有0.2 wt％的Cu ₂ S纳米颗粒的纳米复合膜的最大水通量为248.25 Lm ^-2 h ^-1，通量恢复率（FRR）值为92.4％，与对照PVDF相比，分别提高了65％和19％膜。同时，纳米复合膜能够高度排斥阴离子染料，例如活性蓝21（RB21），直接黑38（DB38）和直接黄12（DY12）。