Surface-engineered TiO2 nanoparticles incorporated Chitosan polymer membrane for seawater desalination: Fabrication, characterization, and performance evaluation

Volume 6, Issue 04, Pages xxx-xxx, Dec 2023 *** Field: Analytical Environmental Chemistry

  • Muhammad Nurdin, Corresponding Author, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari 93231, Southeast Sulawesi, Indonesia
  • Mike Delvinasari Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari 93231, Southeast Sulawesi, Indonesia
  • La Ode Ahmad Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari 93231, Southeast Sulawesi, Indonesia
  • Maulidyah Maulidiyah Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari 93231, Southeast Sulawesi, Indonesia
  • Dwiprayogo Wibowo Department of Environmental Science, School of Environmental Science, Universitas Indonesia, Jakarta 10430, Indonesia. and Department of Environmental Engineering, Faculty of Engineering, Universitas Muhammadiyah Kendari, Kendari 93231, Southeast Sulawesi, Indonesia.
  • Faizal Mustapa Department of Marine Sciences, Institut Teknologi dan Bisnis Muhammadiyah Kolaka, Kolaka 93511, Southeast Sulawesi, Indonesia
  • Amir Mahmud Department of Fishery Resources – Faculty of Marine, Universitas Muhammadiyah Kendari
  • Muhammad Idris Department of Agriculture Sciences, Faculty of Agriculture, Universitas Halu Oleo
  • Muh. Ramli Department of Marine Sciences, Faculty of Marine, Universitas Halu Oleo
Keywords: Membrane, Desalination, TiO2, Polymer structure, Reverse Osmosis, Seawater


The effect of surface coating against RO membrane over TiO2-NPs incorporated with chitosan (TiO2-NPs/chitosan) membrane was evaluated to obtain a simple method to fabricate RO membrane for enhanced performance on seawater desalination. The impact of surface coating on the chitosan membrane performance in seawater reverse osmosis (SWRO) was investigated by altering the mass of TiO2-NPs (0.25 g and 0.5 g) used for the surface coating RO membrane. TiO2-NPs were applied to the membranes using a surface coating technique and dried to create a sturdy polymer structure. The characteristic of fabricated membranes shows the function group reflects on organic compounds from /chitosan membranes polymer (–OH, -CH, C=O, C-O-C, -CH3, C-O, and NH2). In addition, TiO2-NPs are also expressed in the wavenumber range of 850-500 cm-1, which characterizes the presence of Ti-O-Ti bonds. Morphological and crystal analyses of TiO2-NPs incorporated in chitosan membrane show significantly smaller pores formed because TiO2-NPs are essential in the high permeability performance under the amorphous phase structure. Under the RO desalination process, the high performance of fabricated membranes was evaluated against water flux and salt rejection. Adding TiO2-NPs can affect the decrease in water flux value by 23 L m-2 h-1 and increase salt rejection by 52.94%. 


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How to Cite
Nurdin, M., Delvinasari, M., Ahmad, L., Maulidiyah, M., Wibowo, D., Mustapa, F., Mahmud, A., Idris, M., & Ramli, M. (2023). Surface-engineered TiO2 nanoparticles incorporated Chitosan polymer membrane for seawater desalination: Fabrication, characterization, and performance evaluation. Analytical Methods in Environmental Chemistry Journal, 6(04), xxx-xxx.
Original Article