Elmarghany Mohamed R, El-Shazly Ahmed H, Rajabzadeh Saeid, Salem Mohamed S, Shouman Mahmoud A, Sabry Mohamed Nabil, Matsuyama Hideto, Nady Norhan
Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura 35516, Egypt.
Chemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), Alexandria 21934, Egypt.
Membranes (Basel). 2020 Jan 16;10(1):15. doi: 10.3390/membranes10010015.
In this work, a novel triple-layer nanocomposite membrane prepared with polyethersulfone (PES)/carbon nanotubes (CNTs) as the primary bulk material and poly (vinylidene fluoride-co-hexafluoro propylene) (PcH)/CNTs as the outer and inner surfaces of the membrane by using electrospinning method is introduced. Modified PES with CNTs was chosen as the bulk material of the triple-layer membrane to obtain a high porosity membrane. Both the upper and lower surfaces of the triple-layer membrane were coated with PcH/CNTs using electrospinning to get a triple-layer membrane with high total porosity and noticeable surface hydrophobicity. Combining both characteristics, next to an acceptable bulk hydrophobicity, resulted in a compelling membrane for membrane distillation (MD) applications. The prepared membrane was utilized in a direct contact MD system, and its performance was evaluated in different salt solution concentrations, feed velocities and feed solution temperatures. The results of the prepared membrane in this study were compared to those reported in previously published papers. Based on the evaluated membrane performance, the triple-layer nanocomposite membrane can be considered as a potential alternative with reasonable cost, relative to other MD membranes.
在这项工作中，介绍了一种新型的三层纳米复合膜，该膜采用静电纺丝法制备，以聚醚砜（PES）/碳纳米管（CNT）作为主要基体材料，聚（偏二氟乙烯 - 共 - 六氟丙烯）（PcH）/碳纳米管作为膜的外表面和内表面。选择用碳纳米管改性的聚醚砜作为三层膜的基体材料以获得高孔隙率的膜。使用静电纺丝法在三层膜的上表面和下表面均涂覆PcH/碳纳米管，以得到具有高总孔隙率和显著表面疏水性的三层膜。兼具这两种特性，除了可接受的基体疏水性外，还造就了一种适用于膜蒸馏（MD）应用的引人注目的膜。将制备的膜应用于直接接触式膜蒸馏系统，并在不同盐溶液浓度、进料速度和进料溶液温度下对其性能进行评估。将本研究中制备的膜的结果与先前发表的论文中报道的结果进行比较。基于评估的膜性能，相对于其他膜蒸馏膜，这种三层纳米复合膜可被视为一种具有合理成本的潜在替代品。
