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Characterization and kinetic studies of poly(Vinylidene fluoride-co-hexafluoropropylene) polymer inclusion membrane for the malachite green extraction

Soo, Jillin Ai Lam and Makhtar, Muaz Mohd. Zaini and Shoparwe, Noor Fazliani and Otitoju, Tunmise Ayode and Mohamad, Mardawani and Tan, Lian See and Li, Sanxi (2021) Characterization and kinetic studies of poly(Vinylidene fluoride-co-hexafluoropropylene) polymer inclusion membrane for the malachite green extraction. Membranes, 11 (9). pp. 1-23. ISSN 2077-0375

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Official URL: http://dx.doi.org/10.3390/membranes11090676

Abstract

Textile industry effluent contains a high amount of toxic colorants. These dyes are car-cinogenic and threats to the environment and living beings. In this study, poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-co-HFP) was used as the based polymer for PIMs with bis-(2-ethylhexyl) phosphate (B2EHP) and dioctyl phthalate (DOP) as the carrier and plasticizer. The fabricated PIMs were employed to extract the cation dye (Malachite Green; MG) from the feeding phase. PIMs were also characterized by scanning electron microscopy (SEM), atomic force micro-scope (AFM), contact angle, water uptake, Fourier-transform infrared spectroscopy (FTIR) and ions exchange capacity. The performance of the PIMs was investigated under various conditions such as percentage of carrier and initial dye concentration. With permeability and flux values of 0.1188 cm/min and 1.1913 mg cm/min, PIM produced with 18% w/w PVDF-co-HFP, 21% w/w B2EHP, 1% w/w DOP and 40% w/w THF and was able to achieve more than 97% of MG extraction. The experimental data were then fitted with a pseudo-second-order (PSO) model, and the calculated R2 value was ~0.99. This shows that the data has a good fit with the PSO model. PIM is a potential alternative technology in textile industry effluent treatment; however, the right formulation is crucial for developing a highly efficient membrane.

Item Type:Article
Uncontrolled Keywords:Extraction, Kinetic study, Malachite green, Poly(vinylidene fluoride-co-hexafluoropropylene), Polymer inclusion membrane
Subjects:T Technology > T Technology (General)
Divisions:Malaysia-Japan International Institute of Technology
ID Code:97414
Deposited By: Widya Wahid
Deposited On:10 Oct 2022 07:21
Last Modified:10 Oct 2022 07:21

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