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用于提高光催化去除亚甲基蓝染料效率和抗菌活性的聚丙烯和聚对苯二甲酸丁二醇酯非织造膜的表面改性

Surface Modification of PP and PBT Nonwoven Membranes for Enhanced Efficiency in Photocatalytic MB Dye Removal and Antibacterial Activity.

作者信息

Aldebasi Shahad M, Tar Haja, Alnafisah Abrar S, Salmi-Mani Hanène, Kouki Noura, Alminderej Fahad M, Lalevée Jacques

机构信息

Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia.

Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris-Saclay, CNRS, 91405 Orsay Cedex, France.

出版信息

Polymers (Basel). 2023 Aug 11;15(16):3378. doi: 10.3390/polym15163378.

DOI:10.3390/polym15163378
PMID:37631435
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10459508/
Abstract

In this study, we developed highly efficient nonwoven membranes by modifying the surface of polypropylene (PP) and poly(butylene terephthalate) (PBT) through photo-grafting polymerization. The nonwoven membrane surfaces of PP and PBT were grafted with poly(ethylene glycol) diacrylate (PEGDA) in the presence of benzophenone (BP) and metal salt. We immobilized tertiary amine groups as BP synergists on commercial nonwoven membranes to improve PP and PBT surfaces. In situ Ag, Au, and Au/Ag nanoparticle formation enhances the nonwoven membrane surface. SEM, FTIR, and EDX were used to analyze the surface. We evaluated modified nonwoven membranes for photocatalytic activity by degrading methylene blue (MB) under LED and sunlight. Additionally, we also tested modified membranes for antibacterial activity against . The results indicated that the modified membranes exhibited superior efficiency in removing MB from water. The PBT showed the highest efficiency in dye removal, and bimetallic nanoparticles were more effective than monometallic. Modified membranes exposed to sunlight had higher efficiency than those exposed to LED light, with the PBT/Au/Ag membrane showing the highest dye removal at 97% within 90 min. The modified membranes showed reuse potential, with dye removal efficiency decreasing from 97% in the first cycle to 85% in the fifth cycle.

摘要

在本研究中，我们通过光接枝聚合对聚丙烯（PP）和聚对苯二甲酸丁二醇酯（PBT）的表面进行改性，开发出了高效的非织造膜。在二苯甲酮（BP）和金属盐存在的情况下，PP和PBT的非织造膜表面接枝了聚乙二醇二丙烯酸酯（PEGDA）。我们将叔胺基团作为BP增效剂固定在商用非织造膜上，以改善PP和PBT的表面性能。原位形成的Ag、Au和Au/Ag纳米颗粒增强了非织造膜的表面性能。利用扫描电子显微镜（SEM）、傅里叶变换红外光谱（FTIR）和能量散射X射线光谱（EDX）对表面进行分析。我们通过在LED光和阳光下降解亚甲基蓝（MB）来评估改性非织造膜的光催化活性。此外，我们还测试了改性膜对……的抗菌活性。结果表明，改性膜在从水中去除MB方面表现出卓越的效率。PBT在染料去除方面效率最高，双金属纳米颗粒比单金属纳米颗粒更有效。暴露在阳光下的改性膜比暴露在LED光下的改性膜效率更高，其中PBT/Au/Ag膜在90分钟内的染料去除率最高，为97%。改性膜显示出可重复使用的潜力，染料去除效率从第一个循环的97%降至第五个循环的85%。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c6/10459508/925cba473188/polymers-15-03378-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c6/10459508/925cba473188/polymers-15-03378-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c6/10459508/bff6319ce1fe/polymers-15-03378-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c6/10459508/805053913aed/polymers-15-03378-sch002a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c6/10459508/c6f55223b048/polymers-15-03378-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c6/10459508/409cf3bc1ac6/polymers-15-03378-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c6/10459508/3c65c8284ef1/polymers-15-03378-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c6/10459508/ddad253ff7b2/polymers-15-03378-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c6/10459508/a9da9f4d5628/polymers-15-03378-g005a.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b6c6/10459508/925cba473188/polymers-15-03378-g009.jpg

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