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采用 MWCNT-NH2 纳米粒子对聚醚砜膜进行改性及其在渗透蒸发分离共沸物中的应用。

Modification of polyethersulfone membrane using MWCNT-NH2 nanoparticles and its application in the separation of azeotropic solutions by means of pervaporation.

机构信息

Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam.

Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam.

出版信息

PLoS One. 2020 Jul 22;15(7):e0236529. doi: 10.1371/journal.pone.0236529. eCollection 2020.

DOI:10.1371/journal.pone.0236529
PMID:32697797
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7375585/
Abstract

In this study, functionalized multi-walled carbon nanotubes (MWCNT-NH2) were synthesized as an additive for the preparation of mixed matrix membranes (MMMs) and then were investigated by FTIR and FE-SEM techniques. Polyether sulfone (PES) polymeric membrane modified with functionalized MWCNT-NH2 carbon nanotubes was prepared by phase inversion method. The effect of MWCNT-NH2 on the morphology and property of the PES membrane was evaluated using scanning electron microscopy. The flux, enrichment factor and swelling properties of modified membranes were also used to investigate the membranes performance. The results showed that the flux and enrichment factor in modified PES membrane containing 5 wt.% of functionalized MWCNT-NH2 carbon nanotubes were obtained 1.2 L.m-2h-1 and 3.3, respectively. The influence of methanol concentration on the flux and enrichment factor was investigated. The results corroborated that the flux didn't change significantly, while the enrichment factor was decreased.

摘要

在这项研究中，功能化多壁碳纳米管（MWCNT-NH2）被合成作为制备混合基质膜（MMM）的添加剂，然后通过傅里叶变换红外光谱（FTIR）和场发射扫描电子显微镜（FE-SEM）技术进行了研究。通过相转化法制备了聚醚砜（PES）聚合物膜，并用功能化 MWCNT-NH2 碳纳米管进行了改性。通过扫描电子显微镜评估了 MWCNT-NH2 对 PES 膜形貌和性能的影响。还使用通量、浓缩因子和溶胀性能来研究膜的性能。结果表明，在含有 5wt.%功能化 MWCNT-NH2 碳纳米管的改性 PES 膜中，通量和浓缩因子分别达到 1.2L·m-2·h-1 和 3.3。研究了甲醇浓度对通量和浓缩因子的影响。结果证实，通量没有明显变化，而浓缩因子降低。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/74dbe7071a34/pone.0236529.g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/15d4983a562c/pone.0236529.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/6be26f6e1166/pone.0236529.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/2b32a3f7586a/pone.0236529.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/441509ba1730/pone.0236529.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/a36ae0b13587/pone.0236529.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/56afd7644371/pone.0236529.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/74dbe7071a34/pone.0236529.g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/15d4983a562c/pone.0236529.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/6be26f6e1166/pone.0236529.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/2b32a3f7586a/pone.0236529.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/441509ba1730/pone.0236529.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/a36ae0b13587/pone.0236529.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/56afd7644371/pone.0236529.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/819e/7375585/74dbe7071a34/pone.0236529.g007.jpg

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