通过掺入金属有机骨架CuBTC提高聚乙二醇膜的脱硫性能

Improved Desulfurization Performance of Polyethyleneglycol Membrane by Incorporating Metal Organic Framework CuBTC.

作者信息

Cai Caibin, Fan Xiaotao, Han Xiaolong, Li Jiding, Vardhan Harsh

机构信息

School of Chemical Engineering, Northwest University, Xi'an, Shaanxi 710069, China.

State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China.

出版信息

Polymers (Basel). 2020 Feb 11;12(2):414. doi: 10.3390/polym12020414.

DOI:10.3390/polym12020414

PMID:32054080

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7077731/

Abstract

In this paper, copper benzene-1,3,5-tricarboxylate (CuBTC) was incorporated into polyethylenglyol (PEG) to prepare a mixed matrix membrane (MMM) for pervaporation desulfurization. The characterization results showed that the prepared CuBTC particles had an ideal octahedral shape and micropores. The Cu in CuBTC interacts with thiophene via π-complexation, thus enhancing the separation performance of the hybrid membranes. The effect of CuBTC content and the operating condition on the pervaporation performance of the MMMs was investigated. An optimal pervaporation separation performance was acquired with a permeation flux of 2.21 kg/(m·h) and an enrichment factor of 8.79, which were increased by 100% and 39% compared with the pristine PEG membrane. Moreover, the CuBTC-filled PEG membrane showed a good stability in the long-term desulfurization under a high operating temperature of 75 °C for five days.

摘要

在本文中，将苯-1,3,5-三甲酸铜（CuBTC）掺入聚乙二醇（PEG）中以制备用于渗透汽化脱硫的混合基质膜（MMM）。表征结果表明，所制备的CuBTC颗粒具有理想的八面体形状和微孔。CuBTC中的Cu通过π-络合与噻吩相互作用，从而提高了混合膜的分离性能。研究了CuBTC含量和操作条件对MMM渗透汽化性能的影响。获得了最佳的渗透汽化分离性能，渗透通量为2.21 kg/(m·h)，富集因子为8.79，与原始PEG膜相比分别提高了100%和39%。此外，填充CuBTC的PEG膜在75°C的高操作温度下进行为期五天的长期脱硫过程中表现出良好的稳定性。