Preparation and characterization of nanocomposite membranes based on PVC/TiO2 anatase for the separation of toluene/n-heptane mixtures via pervaporation

被引：13
作者：
Tabbiche, A. [1 ]
Aouinti, L. [2 ,3 ]
机构：
[1] Univ Sci & Technol Oran Mohamed Boudiaf USTOMB, Fac Chim, Lab Ecomat Fonct & Nanostruct, BP 1505, Bir El Djir 31000, Oran, Algeria
[2] Univ Oran Es Senia, Fac Sci, Dept Chim, Lab Chim Polymeres, BP 1524 El MNouar, Oran 31000, Algeria
[3] Univ Sci & Technol Oran Mohamed Boudiaf USTOMB, Fac Chim, Dept Genie Mat, BP 1505, Bir El Djir 31000, Oran, Algeria
来源：
POLYMER BULLETIN | 2023年 / 80卷 / 01期
关键词：
Hybrid membranes; Polyvinyl chloride; Titanium dioxide anatase; Pervaporation; Toluene; n-heptane; MIXED MATRIX MEMBRANES; POLY(VINYL ALCOHOL); SODIUM ALGINATE; BENZENE/CYCLOHEXANE MIXTURES; COMPOSITE MEMBRANES; DEHYDRATION; ISOPROPANOL; PERFORMANCE; CHITOSAN; ACID;
D O I：
10.1007/s00289-021-04062-5
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Hybrid membranes based on polyvinyl chloride (PVC) containing 1-5 wt% of titanium dioxide anatase (TiO2 anatase) particles were prepared via the casting solution method. These membranes were characterized by XRD, FTIR, TGA, SEM, EDX, and contact angle measurements. The pervaporation (PV) and separation characteristics of toluene/n-heptane mixtures containing 50 wt% through these membranes were investigated at 56 degrees C. The membranes flux increased with increasing TiO2 anatase content, and the selectivity decreased; however, a significant improvement in PV performance was observed for membranes loaded with TiO2 anatase compared to pure PVC. The PVC membrane loaded with 2 wt% TiO2 anatase showed the highest separation factor of 6.27 with a normalized flux of 0.55 kg/m(2).h where in absence of TiO2 anatase the corresponding values were 9.7 and 0.05 kg/m(2).h.
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页码：643 / 666
页数：24
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