Synthesis and Evaluation of Asymmetric Mesoporous PTFE/Clay Composite Membranes for Textile Wastewater Treatment

Asymmetric mesoporous composite PTFE membranes wit 40, 50, and 85 wt.% of a clay (kaolin) were fabricated and characterized using a scanning electron microscope equipped with EDX for morphology and elemental analysis. The surface chemistry of the membranes was checked using Fourier transform infrare...

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Autores principales:	Saida Bousbih, Rihab Belhadj Ammar, Raja Ben Amar, Lasâad Dammak, Fadila Darragi, Emna Selmane
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	natural clay ultrafiltration mesoporous membrane PTFE real textile wastewater Chemical technology TP1-1185 Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/4216dda734ae44428b808a696dff2cad
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spelling	oai:doaj.org-article:4216dda734ae44428b808a696dff2cad2021-11-25T18:19:48ZSynthesis and Evaluation of Asymmetric Mesoporous PTFE/Clay Composite Membranes for Textile Wastewater Treatment10.3390/membranes111108502077-0375https://doaj.org/article/4216dda734ae44428b808a696dff2cad2021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0375/11/11/850https://doaj.org/toc/2077-0375Asymmetric mesoporous composite PTFE membranes wit 40, 50, and 85 wt.% of a clay (kaolin) were fabricated and characterized using a scanning electron microscope equipped with EDX for morphology and elemental analysis. The surface chemistry of the membranes was checked using Fourier transform infrared spectroscopy. The effect of incorporating the clay on the hydrophilicity, permeability, morphology, and antifouling properties of the fabricated membranes was investigated. It was observed that incorporating kaolin particles improved the mechanical properties but decreased the contact angle of the membranes, thereby resulting in an improvement in the membrane permeability. The performance of the three composite UF membranes was evaluated through the treatment of a real textile effluent sample containing indigo dye. The results confirmed that these membranes are effective in the removal of COD, color, and turbidity. Indeed, at a transmembrane pressure of 2.5 bar, almost total removal of the turbidity, COD removal > 85%, and color removal > 97% were attained. Furthermore, membrane A85 (with 85% clay) showed the best performance, with a water flux of 659.1 L·h<sup>−1</sup>·m<sup>−2</sup>·bar<sup>−1</sup>. This study highlights the potential of incorporating low-cost clay material for the enhancement of the performance of mixed organic/inorganic matrix membranes, which can be applied to textile wastewater treatment.Saida BousbihRihab Belhadj AmmarRaja Ben AmarLasâad DammakFadila DarragiEmna SelmaneMDPI AGarticlenatural clayultrafiltrationmesoporous membranePTFEreal textile wastewaterChemical technologyTP1-1185Chemical engineeringTP155-156ENMembranes, Vol 11, Iss 850, p 850 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	natural clay ultrafiltration mesoporous membrane PTFE real textile wastewater Chemical technology TP1-1185 Chemical engineering TP155-156
spellingShingle	natural clay ultrafiltration mesoporous membrane PTFE real textile wastewater Chemical technology TP1-1185 Chemical engineering TP155-156 Saida Bousbih Rihab Belhadj Ammar Raja Ben Amar Lasâad Dammak Fadila Darragi Emna Selmane Synthesis and Evaluation of Asymmetric Mesoporous PTFE/Clay Composite Membranes for Textile Wastewater Treatment
description	Asymmetric mesoporous composite PTFE membranes wit 40, 50, and 85 wt.% of a clay (kaolin) were fabricated and characterized using a scanning electron microscope equipped with EDX for morphology and elemental analysis. The surface chemistry of the membranes was checked using Fourier transform infrared spectroscopy. The effect of incorporating the clay on the hydrophilicity, permeability, morphology, and antifouling properties of the fabricated membranes was investigated. It was observed that incorporating kaolin particles improved the mechanical properties but decreased the contact angle of the membranes, thereby resulting in an improvement in the membrane permeability. The performance of the three composite UF membranes was evaluated through the treatment of a real textile effluent sample containing indigo dye. The results confirmed that these membranes are effective in the removal of COD, color, and turbidity. Indeed, at a transmembrane pressure of 2.5 bar, almost total removal of the turbidity, COD removal > 85%, and color removal > 97% were attained. Furthermore, membrane A85 (with 85% clay) showed the best performance, with a water flux of 659.1 L·h<sup>−1</sup>·m<sup>−2</sup>·bar<sup>−1</sup>. This study highlights the potential of incorporating low-cost clay material for the enhancement of the performance of mixed organic/inorganic matrix membranes, which can be applied to textile wastewater treatment.
format	article
author	Saida Bousbih Rihab Belhadj Ammar Raja Ben Amar Lasâad Dammak Fadila Darragi Emna Selmane
author_facet	Saida Bousbih Rihab Belhadj Ammar Raja Ben Amar Lasâad Dammak Fadila Darragi Emna Selmane
author_sort	Saida Bousbih
title	Synthesis and Evaluation of Asymmetric Mesoporous PTFE/Clay Composite Membranes for Textile Wastewater Treatment
title_short	Synthesis and Evaluation of Asymmetric Mesoporous PTFE/Clay Composite Membranes for Textile Wastewater Treatment
title_full	Synthesis and Evaluation of Asymmetric Mesoporous PTFE/Clay Composite Membranes for Textile Wastewater Treatment
title_fullStr	Synthesis and Evaluation of Asymmetric Mesoporous PTFE/Clay Composite Membranes for Textile Wastewater Treatment
title_full_unstemmed	Synthesis and Evaluation of Asymmetric Mesoporous PTFE/Clay Composite Membranes for Textile Wastewater Treatment
title_sort	synthesis and evaluation of asymmetric mesoporous ptfe/clay composite membranes for textile wastewater treatment
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4216dda734ae44428b808a696dff2cad
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Synthesis and Evaluation of Asymmetric Mesoporous PTFE/Clay Composite Membranes for Textile Wastewater Treatment

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