Iranian Polymer Journal

, Volume 26, Issue 8, pp 639–649 | Cite as

Pervaporation properties of oleyl alcohol-filled polydimethylsiloxane membranes for the recovery of phenol from wastewater

  • Hong YeEmail author
  • Xiang Yan
  • Xiang Zhang
  • Weiwei Song
Original Paper


In the present work, the modified polydimethylsiloxane (PDMS) membranes incorporated by oleyl alcohol (OA) were prepared for the first time. The polymeric membranes were characterized by Fourier transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA), and scanning electron microscopy (SEM) before and after modification. These membranes were used for the pervaporative separation of phenol from wastewater. The effects of OA loading and feed temperature on the pervaporation performances have been investigated. The influence of ignoring the partial pressure at the permeate side was compared and discussed. The results showed that the OA presence increased phenol flux and separation factor, and decreased water flux greatly with less than 9 wt% OA loading. The highest pervaporation separation index was obtained with 5 wt% OA loading. The driving force of phenol across the membranes was much lower than that of water, and permeation of phenol was much higher than water in nature. It is necessary to discuss and compare the intrinsic properties of different membranes using permeation and selectivity, even though the membranes are tested under the same feed temperature and concentration. The partial pressure of phenol at the permeation side cannot be simply omitted for its great effect on the permeation. Increasing feed temperature will result in the increase of flux and separation factor, but decrease of permeation.


Pervaporation Oleyl alcohol Polydimethylsiloxane Modification Separation membrane 



The authors gratefully acknowledge the financial support provided by Beijing Natural Science Foundation (2172020, L140009), The Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions (CIT&TCD201404032).

Supplementary material

13726_2017_549_MOESM1_ESM.docx (93 kb)
Supplementary material 1 (DOCX 92 kb)


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Copyright information

© Iran Polymer and Petrochemical Institute 2017

Authors and Affiliations

  1. 1.Beijing Engineering and Technology Research Center of Food AdditivesBeijing Technology and Business University (BTBU)BeijingChina
  2. 2.Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light IndustryBeijing Technology and Business University (BTBU)BeijingChina

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