聚砜
膜
纳米复合材料
纳米材料
结垢
材料科学
接触角
石墨氮化碳
化学工程
聚合物
纳米技术
化学
复合材料
光催化
有机化学
工程类
催化作用
生物化学
作者
José Luis Cortina,Seyed Soroush Mousavi Khadem,Ahmad Dehqan,Shadi Paziresh,Mohammad Reza Ganjali,Mehdi Mehrpooya,Eslam Pourbasheer,Alireza Badiei,Amin Esmaeili,Ismail Koyuncu,Ghasem Naderi,Navid Rabiee,Otman Abida,Sajjad Habibzadeh,Mohammad Reza Saeb
标识
DOI:10.1016/j.memsci.2022.120893
摘要
Polysulfone (PSf) membranes are privileged for water and wastewater treatment, but because of their hydrophobic nature, they suffer from fouling, which lowers their performance and lifetime. In this work, g-C3N4 and g-C3N4/ZnO nanomaterials were synthesized via a hydrothermal method to modify the PSf membrane for effective dye separation and reduction of organic fouling. Since g-C3N4/ZnO possesses –OH and –NH reactive groups, g-C3N4/ZnO/PSf membrane revealed higher porosity, hydrophilicity, negative surface charge, and lower contact angle. The results of filtration analysis also showed a higher performance for nanomembranes with respect to the neat PSf. Permeability and fouling resistance of neat PSf membrane were well below those of nanocomposite membranes, such that by incorporation of 0.5 wt% g-C3N4/ZnO nanocomposite in PSf they significantly improved to 85.93 L/m2 h bar and 90%, respectively. The rejection rate was also increased for both types of dyes used in this study (99.9% for Reactive green 19 and 85.5% for Reactive Yellow 160). The outcome of this research would suggest the application of graphitic nitride nanomaterials for developing highly efficient polymer membranes.
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