Separation of phenol through polyvinyl-chloride inclusion membrane with bis(2-ethyl hexyl)-phosphoric acid as carrier

MENG Xiaorong; GAO Chenguang; WANG Lei; WANG Xudong; MA Yuan; CHEN Henan

doi:10.3969/j.issn.0438-1157.2014.11.032

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Separation of phenol through polyvinyl-chloride inclusion membrane with bis(2-ethyl hexyl)-phosphoric acid as carrier

更新时间：2025-12-10

- Separation of phenol through polyvinyl-chloride inclusion membrane with bis(2-ethyl hexyl)-phosphoric acid as carrier
- CIESC Journal Issue 11, Pages: 4444-4450(2014)
- 作者机构：
  
  1. 西安建筑科技大学理学院,陕西,西安,710055
  2. 西安建筑科技大学环境工程学院,陕西,西安,710055
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.11.032
  CLC： Q028.8
- Online First：05 November 2014，
  
  Published：05 November 2014
- 稿件说明：
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MENG Xiaorong, GAO Chenguang, WANG Lei, et al. Separation of phenol through polyvinyl-chloride inclusion membrane with bis(2-ethyl hexyl)-phosphoric acid as carrier[J]. CIESC Journal, 2014, (11): 4444-4450.
DOI：

MENG Xiaorong, GAO Chenguang, WANG Lei, et al. Separation of phenol through polyvinyl-chloride inclusion membrane with bis(2-ethyl hexyl)-phosphoric acid as carrier[J]. CIESC Journal, 2014, (11): 4444-4450. DOI： 10.3969/j.issn.0438-1157.2014.11.032.

摘要

以二-(2-乙基己基) 膦酸(D2EHPA

P204)为载体

制备了聚氯乙烯(PVC)为膜基材的系列聚合物包容膜(PD-PIM)

用FTIR、XRD及AFM表征了PD-PIM的化学组成、结晶行为和微观形貌.以渗透系数和渗透通量为指标

考察了PD-PIM膜中载体含量、料液相浓度和pH

以及解析相中盐酸浓度对PD-PIM分离苯酚的影响

探讨了实验条件下苯酚通过PD-PIM的传输机制.结果表明:在实验设定的范围内

PD-PIM对苯酚的传质通量随PD-PIM中载体质量分数、料液相中苯酚浓度的增加而增大

并在料液相苯酚浓度为400 mg·L-1、pH=6

解析相盐酸浓度为0.1 mol·L-1

载体P204含量为70%(质量)时达到最佳分离效果.PD-PIM对苯酚的传输机制为促进耦合迁移

初期传输符合一级动力学方程.重复使用实验证实PD-PIM具有较高的稳定性.

Abstract

A polymer inclusion membrane (PIM) system containing polyvinyl chloride (PVC) polymer matrix and bis(2-ethyl hexyl)-phosphoric acid (D2EHPA

P204)

as a specific carrier

was prepared without using any additional plasticizers

expressed as PD-PIM. The chemical composition

crystallization behavior and morphology of as-prepared PD-PIM were characterized with Fourier transform infrared spectrophotometry

X-ray diffraction and atomic force microscopy. The facilitated transport of phenol through the PD-PIM was investigated. The influences of carrier content of PD-PIM

phenol concentration

pH in source phase

and HCl concentration in receiving phase on the transport were investigated. The transport kinetics of phenol and the stability of membranes were studied. The results show that the early transmission process of phenol is in line with the first order kinetic equation and the optimal transport process can be obtained with the membrane containing 70%D2EHPA/30%PVC (mass)

from the source solution of phenol concentration at 400 mg·L-1 and pH 6.0

by using 0.1 mol·L-1 HCl as receiving phase. In addition

the experiments demonstrate that PD-PIM presents good stability and the phenol transport through the membrane is facilitated by co-transport.

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