Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Experimental Study on Structural and Functional Characteristics of Surface-Modified Porous Membrane

다공성 멤브레인의 표면 개질에 따른 구조 및 성능 특성에 대한 실험 연구

  • Lee, Sang Hyuk (Nuclear Equipment Qualification & Safety Research Group, Korea Institute of Machinery and Materials (KIMM)) ;
  • Kim, Kiwoong (Department of Mechanical Engineering Hannam University)
  • Received : 2021.03.27
  • Accepted : 2021.04.07
  • Published : 2021.04.30
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Abstract

With the advances in recent nanotechnology, mass transport phenomena have been receiving large attention both in academic researches and industrial applications. Nonetheless, it is not clearly determined which parameters are dominant at nanoscale mass transport. Especially, membrane is a kind of technology that use a selective separation to secure fresh water. The development of great separation membrane and membrane-based separation system is an important way to solve existing water resource problems. In this study, glass fiber-based membranes which are treated by graphene oxide (GO), poly-styrene sulfonate (GOP) and sodium dodecyl sulfate (GPS) were fabricated. Mass transport parameters were investigated in terms of material-specific and structure-specific dominance. The 3D structural information of GO, GOP, and GPS was obtained by using synchrotron X-ray nano tomography. In addition, electrostatic characteristic and water absorption rate of the membranes were investigated. As a result, we calculated internal structural information using Tomadakis-Sotrichos model, and we found that manipulation of surface characteristics can improve spacer arm effect, which means enhancement of water permeability by control length of ligand and surface charge functionality of the membrane.

Keywords

Acknowledgement

이 논문은 2020학년도 한남대학교 학술연구비 지원에 의하여 연구되었음

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