文献类型：期刊文献

英文题名：Construction of MoS2 hybrid membranes on ceramic hollow fibers for efficient dehydration of isopropanol solution via pervaporation

作者：Taymazov, Dovletjan[1];Zhang, Hao[1];Li, Wen-Xuan[1];Li, Ping-Ping[1];Xie, Fei[1];Gong, Xin-Yu[1];Zhang, Sheng-Ning[1];Ma, Xiao-Hua[1];Xu, Zhen-Liang[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Mei Long Rd 130, Shanghai 200237, Peoples R China

年份：2021

卷号：277

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20213410803805);WOS:【SCI-EXPANDED(收录号:WOS:000701893700001)】；

基金：The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (21978081), the Shanghai Science and Technology Development Funds (21ZR1417500), and the Open Project of State Key Laboratory of Chemical Engineering (SKL-ChE-21C03).

语种：英文

外文关键词：MoS2; Intermediate layer; Ceramic hollow fiber; Hybrid membrane; Pervaporation

摘要：Due to environmental issues and intense competition in the marketplace, industries and governmental organizations invest in new technology research to improve productivity, environmental protection, and costefficiency. Pervaporation is a membrane-based separation technology, which is cost-effective, environmentally friendly, and efficient in the separation of azeotropic mixtures. Here, we report the fabrication of a hybrid membrane based on molybdenum disulfide (MoS2) material, which can be used to dehydrate alcohol through a pervaporation process. Ceramic hollow fiber (CHF) membrane was used as a substrate in MoS2hybrid membrane, and TiO2 intermediate layer was constructed to reduce the macropores on the CHF surface. Polyethyleneimine (PEI) was used as a binder in the fabrication of the MoS2 layer. MoS2-PEI layer was prepared by vacuum suction method and then crosslinked with trimesoyl chloride (TMC) to prevent the hybrid layer from swelling in an aqueous solution. We investigated the morphology and physicochemical characteristics of the hybrid membranes by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), atomic force microscopy (AFM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and water contact angle (WCA) measurements. The fabricated MoS2hybrid membrane possesses a permeation flux of 5697 g m-2h- 1 and separation factor of 320 in a 90 wt% isopropanol aqueous solution at 343 K. In this study, we provide a comprehensive understanding of the fabrication of MoS2hybrid membrane on the CHF membrane for efficient dehydration of isopropanol via the pervaporation process.