Khajouei Mohammad, Najafi Mahsa, Jafari Seyed Ahmad, Latifi Mohammad
Department of Chemical Engineering, Polytechique Montréal, Montréal, QC H3T 1J4, Canada.
Department of Chemical Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.
Micromachines (Basel). 2023 Jan 3;14(1):128. doi: 10.3390/mi14010128.
Nanofiltration processes for the removal of emerging contaminants such as nitrate are a focus of attention of research works as an efficient technique for providing drinking water for people. Polysulfone (PSF) nanofiltration membranes containing graphene oxide (GO)/Pt (0, 0.25, 0.5, 0.75, 1 wt%) nanoparticles were generated with the phase inversion pathway. The as-synthesized samples were characterized by FTIR, SEM, AFM, and contact angle tests to study the effect of GO/Pt on hydrophilicity and antibacterial characteristics. The results conveyed that insertion of GO/Pt dramatically improved the biofouling resistance of the membranes. Permeation experiments indicated that PSF membrane embracing 0.75 wt% GO/Pt nanoparticles had the highest nitrate flux and rejection ability. The membrane's configuration was simulated using OPEN-MX simulating software indicating membranes maintaining 0.75 wt% of GO/Pt nanoparticles revealed the highest stability, which is well in accordance with experimental outcomes.
作为一种为人们提供饮用水的有效技术，用于去除硝酸盐等新出现污染物的纳滤工艺是研究工作的重点。通过相转化途径制备了含有氧化石墨烯（GO）/铂（0、0.25、0.5、0.75、1重量%）纳米颗粒的聚砜（PSF）纳滤膜。通过傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、原子力显微镜（AFM）和接触角测试对合成后的样品进行表征，以研究GO/铂对亲水性和抗菌特性的影响。结果表明，GO/铂的插入显著提高了膜的抗生物污染性能。渗透实验表明，含有0.75重量% GO/铂纳米颗粒的PSF膜具有最高的硝酸盐通量和截留能力。使用OPEN-MX模拟软件对膜的结构进行了模拟，结果表明含有0.75重量% GO/铂纳米颗粒的膜具有最高的稳定性，这与实验结果非常吻合。
