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Open AccessArticle

Improving Water Permeability of Hydrophilic PVDF Membrane Prepared via Blending with Organic and Inorganic Additives for Humic Acid Separation

1
Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
2
Graduate School of Environmental Management, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
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Graduate School of Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
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Center for Membrane and Film Technology, Kobe University, Rokkodai-Cho 1-1, Nadaku, Kobe 657-8501, Japan
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Department of Chemical Engineering, Universiti Teknologi Petronas, Perak 32610, Malaysia
*
Author to whom correspondence should be addressed.
Academic Editor: Ming-Chung Wu
Molecules 2019, 24(22), 4099; https://doi.org/10.3390/molecules24224099
Received: 3 October 2019 / Revised: 1 November 2019 / Accepted: 5 November 2019 / Published: 13 November 2019
(This article belongs to the Special Issue Advanced Materials and Technologies for Wastewater Treatment)
The removal of impurities from water or wastewater by the membrane filtration process has become more reliable due to good hydraulic performance and high permeate quality. The filterability of the membrane can be improved by having a material with a specific pore structure and good hydrophilic properties. This work aims at preparing a polyvinylidene fluoride (PVDF) membrane incorporated with phospholipid in the form of a 2-methacryloyloxyethyl phosphorylcholine, polymeric additive in the form of polyvinylpyrrolidone, and its combination with inorganic nanosilica from a renewable source derived from bagasse. The resulting membrane morphologies were analyzed by using scanning electron microscopy. Furthermore, atomic force microscopy was performed to analyze the membrane surface roughness. The chemical compositions of the resulting membranes were identified using Fourier transform infrared. A lab-scale cross-flow filtration system module was used to evaluate the membrane’s hydraulic and separation performance by the filtration of humic acid (HA) solution as the model contaminant. Results showed that the additives improved the membrane surface hydrophilicity. All modified membranes also showed up to five times higher water permeability than the pristine PVDF, thanks to the improved structure. Additionally, all membrane samples showed HA rejections of 75–90%. View Full-Text
Keywords: polyvinylidene fluoride (PVDF); 2-methacryloyloxyethyl phosphorylcholine (MPC); polyvinylpyrrolidone (PVP); organic and inorganic additives polyvinylidene fluoride (PVDF); 2-methacryloyloxyethyl phosphorylcholine (MPC); polyvinylpyrrolidone (PVP); organic and inorganic additives
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MDPI and ACS Style

Arahman, N.; Mulyati, S.; Fahrina, A.; Muchtar, S.; Yusuf, M.; Takagi, R.; Matsuyama, H.; Nordin, N.A.H.; Bilad, M.R. Improving Water Permeability of Hydrophilic PVDF Membrane Prepared via Blending with Organic and Inorganic Additives for Humic Acid Separation. Molecules 2019, 24, 4099.

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