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Hydrophobic Two-Dimensional MoS2 Nanosheets Embedded in a Polyether Copolymer Block Amide (PEBA) Membrane for Recovering Pyridine from a Dilute Solution
ACS Omega ( IF 3.7 ) Pub Date : 2021-01-22 , DOI: 10.1021/acsomega.0c04852 Li Jun Fang 1 , Jian Hua Chen 1, 2 , Jing Mei Wang 1 , Wei Wei Lin 1 , Xiao Gen Lin 1 , Qiao Jing Lin 1 , YaSan He 1
ACS Omega ( IF 3.7 ) Pub Date : 2021-01-22 , DOI: 10.1021/acsomega.0c04852 Li Jun Fang 1 , Jian Hua Chen 1, 2 , Jing Mei Wang 1 , Wei Wei Lin 1 , Xiao Gen Lin 1 , Qiao Jing Lin 1 , YaSan He 1
Affiliation
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A two-dimensional molybdenum disulfide (MoS2) nanosheet, as a new type of inorganic material with high hydrophobicity and excellent physicochemical stability, holds great application potential in the preparation of a high separation performance organic–inorganic hybrid membrane. In this work, high hydrophobic MoS2 was embedded in hydrophobic polyether copolymer block amide (PEBA) to prepare PEBA/MoS2 organic–inorganic hybrid membranes. The structure, morphology, and hydrophobicity of the hybrid membrane were characterized by scanning electron microscopy, thermogravimetric analysis, contact angle goniometry, X-ray diffraction, infrared spectroscopy analysis, and atomic force microscopy. The effect of embedding of MoS2 on the swelling degree and pervaporation separation performance of the PEBA/MoS2 hybrid membrane was studied with a 1.0 wt % pyridine dilute solution. The results indicated that with increasing the MoS2 content, the separation factor of PEBA/MoS2 increased first and then decreased, while it showed a downward trend in the permeation flux. When the MoS2 content in the PEBA/MoS2 hybrid membrane was 10.0 wt %, the permeation flux was 83.4 g m–2 h–1 (decreased by 21.5% compared with the pure PEBA membrane), and the separation factor reached a maximum value of 11.11 (increased by 37.6% compared with the pure PEBA membrane). Meanwhile, the effects of feed temperature on the pervaporation separation performance of PEBA/MoS2 hybrid membranes were also studied. In addition, as the PEBA/MoS2 hybrid membrane has excellent thermal stability, it is expected to be a promising material for recovering pyridine from wastewater.
中文翻译：
疏水二维MoS 2纳米片嵌入聚醚共聚物嵌段酰胺（PEBA）膜中，用于从稀溶液中回收吡啶
二维二硫化钼（MoS 2）纳米片是一种新型的具有高疏水性和优异的理化稳定性的无机材料，在制备高分离性能的有机-无机杂化膜方面具有巨大的应用潜力。在这项工作中，将高疏水性MoS 2嵌入疏水性聚醚共聚物嵌段酰胺（PEBA）中，以制备PEBA / MoS 2有机-无机杂化膜。通过扫描电子显微镜，热重分析，接触角测角，X射线衍射，红外光谱分析和原子力显微镜对杂化膜的结构，形态和疏水性进行了表征。嵌入MoS 2的效果用1.0 wt％的吡啶稀溶液研究了PEBA / MoS 2杂化膜的溶胀度和全蒸发分离性能。结果表明，随着MoS 2含量的增加，PEBA / MoS 2的分离系数先增大后减小，而通量却呈下降趋势。当PEBA / MoS 2杂化膜中的MoS 2含量为10.0 wt％时，渗透通量为83.4 gm –2 h –1（与纯PEBA膜相比减少了21.5％），分离系数达到了最大值11.11（与纯PEBA膜相比增加了37.6％）。同时，研究了进料温度对PEBA / MoS 2杂化膜全蒸发分离性能的影响。另外，由于PEBA / MoS 2杂化膜具有优异的热稳定性，因此有望成为从废水中回收吡啶的有前途的材料。
更新日期：2021-02-02
中文翻译：
疏水二维MoS 2纳米片嵌入聚醚共聚物嵌段酰胺（PEBA）膜中，用于从稀溶液中回收吡啶
二维二硫化钼（MoS 2）纳米片是一种新型的具有高疏水性和优异的理化稳定性的无机材料，在制备高分离性能的有机-无机杂化膜方面具有巨大的应用潜力。在这项工作中，将高疏水性MoS 2嵌入疏水性聚醚共聚物嵌段酰胺（PEBA）中，以制备PEBA / MoS 2有机-无机杂化膜。通过扫描电子显微镜，热重分析，接触角测角，X射线衍射，红外光谱分析和原子力显微镜对杂化膜的结构，形态和疏水性进行了表征。嵌入MoS 2的效果用1.0 wt％的吡啶稀溶液研究了PEBA / MoS 2杂化膜的溶胀度和全蒸发分离性能。结果表明，随着MoS 2含量的增加，PEBA / MoS 2的分离系数先增大后减小，而通量却呈下降趋势。当PEBA / MoS 2杂化膜中的MoS 2含量为10.0 wt％时，渗透通量为83.4 gm –2 h –1（与纯PEBA膜相比减少了21.5％），分离系数达到了最大值11.11（与纯PEBA膜相比增加了37.6％）。同时，研究了进料温度对PEBA / MoS 2杂化膜全蒸发分离性能的影响。另外，由于PEBA / MoS 2杂化膜具有优异的热稳定性，因此有望成为从废水中回收吡啶的有前途的材料。
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