Study of supported liquid membrane transport of 2,4-Dichlorophenoxyacetic acid (2,4 D) using Nano material as new support

Dichlorophenoxyacetic acid (2,4D) is one of the most widely used pesticides in agriculture for weeds elimination [1]. This carcinogenic contaminant is very toxic and has hazardous effects on the environment and ecosystem. Recently, supported liquid membrane transport has been applied for determining and treatment of organic pollutants in aqueous samples [2]. The benefits of this approach include availability, low cost, use of conventional solvents, and simple operation [3]. In this work, transport of 2,4 D from aqueous media was investigated using supported liquid membrane and the efficiency of nano materials polyacrylonitrile (PAN) has been studied as a preservative instead of conventional membranes. Optimum feed, membrane and received phase were included of pH = 1 and NaCl 2M, dichloromethane wet nano polymer, pH = 14 and NaCl 2M, respectively. Other transport conditions, such as stirring speed, time, temperature, etc., were optimized and the interference effect has been investigated. Under same working conditions, the transport of 2.4 D showed a significant increase in Nano support compared to the polysulfone.

Keywords:

Supported liquid membrane , Nano Membrane , 2 , 4-Dichlorophenoxyacetic acid , Polyacrylonitrile