基于KIT-6和功能化KIT-6纳米颗粒的聚合物基质中具有增强性能的纳滤复合膜。

Nanofiltration Composite Membranes Based on KIT-6 and Functionalized KIT-6 Nanoparticles in a Polymeric Matrix with Enhanced Performances.

作者信息

Paun Gabriela, Parvulescu Viorica, Neagu Elena, Albu Camelia, Ionita Larisa, Maxim Monica Elisabeta, Munteanu Andrei, Ciobanu Madalina, Radu Gabriel Lucian

机构信息

National Institute for Research-Development of Biological Sciences, 060031 Bucharest, Romania.

Ilie Murgulescu Institute of Physical Chemistry of the Romanian Academy, Spl. Independentei 202, 060021 Bucharest, Romania.

出版信息

Membranes (Basel). 2021 Apr 21;11(5):300. doi: 10.3390/membranes11050300.

DOI:10.3390/membranes11050300

PMID:33918993

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8143004/

Abstract

The nanofiltration composite membranes were obtained by incorporation of KIT-6 ordered mesoporous silica, before and after its functionalization with amine groups, into polyphenylene-ether-ether-sulfone (PPEES) matrix. The incorporation of silica nanoparticles into PPEES polymer matrix was evidenced by FTIR and UV-VIS spectroscopy. SEM images of the membranes cross-section and their surface topology, evidenced by AFM, showed a low effect of KIT-6 silica nanoparticles loading and functionalization. The performances of the obtained membranes were appraised in permeation of fruit extracts and the selective separation of phenolic acids and flavonoids. The obtained results proved that the PPEES with functionalized KIT-6 nanofiltration membrane, we have prepared, is suitable for the polyphenolic compound's concentration from the natural extracts.

摘要

通过将KIT-6有序介孔二氧化硅（在其用胺基官能化之前和之后）掺入聚苯醚醚砜（PPEES）基质中，制备了纳滤复合膜。通过FTIR和UV-VIS光谱证实了二氧化硅纳米颗粒掺入到PPEES聚合物基质中。由AFM证实的膜横截面的SEM图像及其表面拓扑结构表明，KIT-6二氧化硅纳米颗粒负载和官能化的影响较小。通过水果提取物的渗透以及酚酸和黄酮类化合物的选择性分离来评估所得膜的性能。所得结果证明，我们制备的具有官能化KIT-6的纳滤膜的PPEES适用于从天然提取物中浓缩多酚化合物。