Enhanced dehydration performance of hybrid membranes by incorporating fillers with hydrophilic-hydrophobic regions
Enhanced dehydration performance of hybrid membranes by incorporating fillers with hydrophilic-hydrophobic regions
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通过加入具有亲水-疏水区域的填料增强杂化膜的脱水性能
DOI：
10.1016/j.ces.2017.12.021
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发表时间：
2018-03
影响因子：
4.7
通讯作者：
Cao Xingzhong
中科院分区：
文献类型：
--
作者：
Wang Manru;Wu Hong;Jin Xiaotong;Yang Chen;He Xinyi;Pan Fusheng;Jiang Zhongyi;Wang Chengyang;Chen Mingming;Zhang Peng;Cao Xingzhong
In this study, sulfonated pitch (SP), composed of hydrophilic sulfonate groups and hydrophobic polycyclic aromatic hydrocarbons, was incorporated into sodium alginate (SA) membranes for ethanol dehydrationviapervaporation. The morphologies and structures of the SP and hybrid membranes were confirmed by transmission electron microscopy (TEM), Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (SEM), positron annihilation lifetime spectroscopy (PALS) and water contact angle measurement. Hydrophilic sulfonate groups in SP formed hydrophilic regions which can bind water molecules, ensuring sufficient water occupancy in the membranes, while the hydrophobic polycyclic aromatic hydrocarbons provided continuous transport “highways” for the water molecules. Meanwhile, the introduction of SP created more polymer-filler interface cavities, rendering the membrane with suitable free volume property for separation. Consequently, the membrane demonstrated a maximum permeation flux of 1879 ± 80 g/m2h coupled with an optimal separation factor of 1913 ± 69 in separating 90 wt% ethanol aqueous solution. These resulted in an increase over the SA control membrane of 1.5-fold and 4-fold respectively. Moreover, the hybrid membranes exhibited good operation stability. The results suggested that incorporating fillers with hydrophilic-hydrophobic regions in the membranes can be an effective strategy to improve the performance of water-permselective membranes.
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影响因子：
4.6
作者：
B. Mondal;K. Jiao;Xianguo Li
通讯作者：
B. Mondal;K. Jiao;Xianguo Li
具有分子相互作用驱动的可调自由体积的混合基质膜，可实现高效的生物燃料回收
影响因子：
11.9
作者：
Liu Gongping;Hung Wei-Song;Shen Jie;Li Qianqian;Huang Yun-Hsuan;Jin Wanqin;Lee Kueir-Rarn;Lai Juin-Yih;Jin WQ
通讯作者：
Jin WQ
影响因子：
7.4
作者：
Chunmei Zhang;Song Yulong;Wei Wang;Xiaoyang Guo;Hui Li
通讯作者：
Chunmei Zhang;Song Yulong;Wei Wang;Xiaoyang Guo;Hui Li
影响因子：
9.5
作者：
Linglong Shan;L. Gong;Hongwei Fan;S. Ji;Guojun Zhang
通讯作者：
Linglong Shan;L. Gong;Hongwei Fan;S. Ji;Guojun Zhang
影响因子：
9.2
作者：
Cai, Y. H.;Hu, J.;Zhang, H. M.
通讯作者：
Zhang, H. M.