PVC/D2EHPA 聚合物包容膜对水相中苯酚的分离

Release time:2024-08-09  Hits:

• Affiliation of Author(s):化学与化工学院
• Journal:化工学报
• Key Words:中文关键字：聚合物包容膜；苯酚；二-(2-乙基己基) 膦酸；分离；渗透；萃取，英文关键字：inclusion membrane; phenol; D2EHPA; separation; pe
• 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.
• Note:孟晓荣
• Co-author:高晨光,马源,陈赫男
• First Author:wangxudong,wanglei,mengxiaorong
• Indexed by:Journal paper
• Volume:卷：65
• Issue:期：11
• Page Number:页：4444-4450
• Translation or Not:no
• Date of Publication:2014-12-01