Abstract: ZIF-71 crystals with a crystal size of 140 nmx450 nmx1 μm are synthesized.A series of ZIF-71/PEBA2533/PTFE mixed matrix membranes (MMMs) are prepared on PTFE carrier with ZIF-71 as the additive and PEBA2533 as the organic matrix.The morphology and structure of ZIF-71 crystals and corresponding MMMs are characterized by means of SEM,XRD,and FTIR-ATR.The adjustment effect of ZIF-71 particle size on the structure of MMMs is explored.The ZIF-71-based MMMs are applied to phenol-water solution separation.It is found that small particles of ZIF-71 crystals distribute evenly in the MMMs without any agglomeration.There happens to agglomeration when large ZIF-71 particles are added in the MMMs.MMMs loaded with small particles of ZIF-71 shows higher phenol flux and separation factor.
郝鹏, 霍宇辰, 王晓东, 黄伟. 添加物尺寸对ZIF-71/PEBA2533/PTFE膜结构及其分离性能的影响[J]. 现代化工, 2022, 42(7): 147-151.
HAO Peng, HUO Yu-chen, WANG Xiao-dong, HUANG Wei. Effect of additive size on structure and separation performance of ZIF-71/PEBA/PTFE MMMs. Modern Chemical Industry, 2022, 42(7): 147-151.
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