121st General Meeting of the KCS

Type Poster Presentation
Area Electrochemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code ELEC.P-618
Subject Electrochemical Selectivity of Organics Transport through Polypyrrole-modified PC Membrane
Authors Youmi Han, Doyoun Choi, Yongkeun Son1,*
Sungkyunkwan University, Korea
1Department of Chemistry, Sungkyunkwan University, Korea
Abstract Complex chemicals in industry can affect human health and ecological environment. Therefore, separating chemicals from waste water is an important issue for keeping environment clean. We can use a variety of chemical separation methods such as chromatography, electrophoresis, membrane separation method and so on for separating complex chemicals. Among them, membrane separation method is one of the effective methods for separating various toxic molecules because it can be easy to apply to bulk systems. We can separate chemical species depending on their charges or sizes through a membrane. Especially, using conducting polymer modified membrane is good for separating charged species due to its mechanical stability and good redox property in addition to gain conductivity. We modified polycarbonate (PC) membrane with polypyrrole (PPy) and investigated transport property of benzaylamine (BA). BA was selectively transported through PPy-modified PC membrane depending on applied potentials. When no potential or positive potential (+0.7 V) was applied, BA was not transported. However, BA was transported well when negative potential (-0.7 V) was applied. In this work, we tried to show the different transport properties of organics depending on their molecular structure. The membrane morphology was investigated by Scanning electron microscope (SEM) and Energy dispersive X-ray spectroscopy (EDS). The transportation was detected by using High-performance liquid chromatography (HPLC).
E-mail ymhan@skku.edu