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Self-Assembly of Covalently Linked Porphyrin Dimers at the Solid–Liquid Interface
Open AccessArticle

Polyethersulfone Mats Functionalized with Porphyrin for Removal of Para-nitroaniline from Aqueous Solution

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Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria, 6-95100 Catania, Italy
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INSTM UdR of Catania, Viale A. Doria, 6-95125 Catania, Italy
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Author to whom correspondence should be addressed.
Academic Editors: Nathalie Solladié and Regis Rein
Molecules 2019, 24(18), 3344; https://doi.org/10.3390/molecules24183344
Received: 29 July 2019 / Revised: 9 September 2019 / Accepted: 10 September 2019 / Published: 14 September 2019
(This article belongs to the Special Issue Spatial Organization of Multi-Porphyrins for Pre-Defined Properties)
The dispersion of para-nitroaniline (p-NA) in water poses a threat to the environment and human health. Therefore, the development of functional adsorbents to remove this harmful compound is crucial to the implementation of wastewater purification strategies, and electrospun mats represent a versatile and cost-effective class of materials that are useful for this application. In the present study, we tested the ability of some polyethersulfone (PES) nanofibers containing adsorbed porphyrin molecules to remove p-NA from water. The functional mats in this study were obtained by two different approaches based on fiber impregnation or doping. In particular, meso-tetraphenyl porphyrin (H2TPP) or zinc(II) meso-tetraphenyl porphyrin (ZnTPP) were immobilized on the surface of PES fiber mats by dip-coating or added to the PES electrospun solution to obtain porphyrin-doped PES mats. The presence of porphyrins on the fiber surfaces was confirmed by UV–Vis spectroscopy, fluorescence measurements, and XPS analysis. p-NA removal from water solutions was spectrophotometrically detected and evaluated. View Full-Text
Keywords: porphyrin; para-nitroaniline; polyethersulfone; electrospinning; wastewater treatment porphyrin; para-nitroaniline; polyethersulfone; electrospinning; wastewater treatment
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MDPI and ACS Style

Gangemi, C.M.A.; Iudici, M.; Spitaleri, L.; Randazzo, R.; Gaeta, M.; D’Urso, A.; Gulino, A.; Purrello, R.; Fragalà, M.E. Polyethersulfone Mats Functionalized with Porphyrin for Removal of Para-nitroaniline from Aqueous Solution. Molecules 2019, 24, 3344.

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