文献类型：期刊文献

英文题名：Polyethersulfone Ultrafiltration Membranes Co-Blended with Amphiphilic Polymers and Nitrogen-Doped Titanium Dioxide Nanoparticles for Anticontamination and Photodegradation

作者：Wang, Jikui[1]; Yan, Jiani[1]; Ma, Deyi[1]; Zou, Xinquan[1]; Ma, Ruiyang[1]; Bi, Bodong[1]; Sheng, Yan[1]; Zhang, Kaixin[1]

机构：[1] School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200030, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230388244)

语种：英文

外文关键词：Aromatic compounds - Contact angle - Doping (additives) - Ethylene glycol - Hydrophilicity - Mammals - Membranes - Photocatalytic activity - Polyethylene glycols - Polyols - TiO2 nanoparticles - Ultrafiltration - Water treatment

摘要：Photocatalyst nanoparticles face challenges in their application due to their challenging dispersion and recycling requirements, making loading photocatalyst nanoparticles onto polymer membranes a viable option. Polyethersulfone (PES) ultrafiltration membranes have a high tendency to scale due to their inherent hydrophobicity, which limits their application and increases water treatment costs. To minimize membranes clogging and introduce the photocatalytic function, the modified PES ultrafiltration membranes (NTP) were produced by introducing Poly (ethylene glycol)-block-poly (propylene glycol)-block-poly (ethylene glycol) (PEG-PPG-PEG) and different qualities of homemade Nitrogen-doped titanium dioxide (N-TiO2). NTP3 exhibited a bovine serum albumin interception rate of 93.8% and achieved a methylene blue photocatalytic efficiency of 95.3% after 120 minutes of operation. Furthermore, NTP4 showcased a water contact angle of 41.0°. Notably, under a pressure of 0.1 MPa, the pure water flux of NTP4 surged by 499.3% compared to that of a pure PES membrane. The fouling resistance ratio for membrane flux witnessed an increase from 70.0% to 82.7%, demonstrating the enhanced durability of NTP4. Moreover, the comprehensive analysis for NTP4 revealed a total contamination rate of 40.2%, comprising 23.0% reversible and 17.3% irreversible contamination. The method for mixing N-TiO2 and PEG-PPG-PEG is straightforward and convenient, offering potential for the development of NTP with resistance to pollution and degradation in visible/UV environments. ? 2023, The Authors. All rights reserved.