Hydrophobiciy of electrospun polyacrylonitrile (PAN) nanofiber membrane for water desalination process

Mohd Rasid, Muhammad Nur Alif (2021) Hydrophobiciy of electrospun polyacrylonitrile (PAN) nanofiber membrane for water desalination process. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The demand for freshwater is crucial as the population of the world is increasing. One of the suggested methods to dealing with this issue is water desalination. Besides reverse osmosis (RO), MD offers good results to desalinate water. MD is a desalination process based on a non-isothermal membrane that is regulated by the temperature differential produced within the membrane. There is also some limitation such as wetting which is a fundamental issue that prevents membrane desalination (MD) from being applied in a wider range of industrial applications. Besides that, fouling can be caused by a variety of factors, including membrane properties. To build a membrane that is ideal for long-term performance, a study is required to investigate the relationship between the MD and mechanical properties. The polyacrylonitrile (PAN) is the polymer and electrospinning has been introduced as one of the highly effective techniques in the production of nanostructures with unique properties such as surface area and high porosity. The concentration of the liquid solution of the material is I 0% wt where the results of the electrospun experiment will be analyzed and the properties of the material in PAN-DMF are described by using Scanning Electron Microscopy (SEM). The nature of the material in PAN-DMF shows that it is hydrophobic. This method is carried out using Contact Angle Measurement tools to determine surface hydrophobicity, and the average for fiber size measurement is l.2µm and 1.4µm. This research aims to provide a brief overview of electrospun PAN nano fiber and how it is used to reach the required properties in polymeric membranes used in desalination in MD.

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