Floating 3D-PDMS-Iron oxide molecular baskets for decontaminating diverse pollutants and analyzing structural composition impacts

Abstract Novel iron oxide-incorporated porous polydimethylsiloxane sponges were developed using a simple, non-toxic two-step process. Characterized through various techniques, these sponges serve as effective photocatalysts, absorbents, and adsorbents for pollutant removal. They demonstrated nearly...

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Main Authors: Sethu Kalidhasan, Jonghoon Choi, Hee-Young Lee
Format: Article
Language:English
Published: Nature Portfolio 2024-11-01
Series:npj Clean Water
Online Access:https://doi.org/10.1038/s41545-024-00419-1
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author Sethu Kalidhasan
Jonghoon Choi
Hee-Young Lee
author_facet Sethu Kalidhasan
Jonghoon Choi
Hee-Young Lee
author_sort Sethu Kalidhasan
collection DOAJ
description Abstract Novel iron oxide-incorporated porous polydimethylsiloxane sponges were developed using a simple, non-toxic two-step process. Characterized through various techniques, these sponges serve as effective photocatalysts, absorbents, and adsorbents for pollutant removal. They demonstrated nearly 100% degradation of rhodamine B under optimal conditions ( ~ 100% with Xe arc lamp, 50 mg, pH 3-9, and 4 h), following a pseudo second-order kinetic model (r2 = 0.9999). The sponges also exhibited good activity for other pollutants, including methylene blue (76–87%), 1,4-dichlorobenzene (57–71%), and azithromycin (82–87%), and maintained high performance over 11 reuse cycles with minimal iron loss. In addition, fresh and used catalysts effectively separated oils (173–680 mg with 50 mg of absorbent, and 10–15 s) and chromium (VI) [~87% with 1 ppm, 50 mg, pH 7, and 24 h] from water. This environmentally sustainable approach produces no toxic waste and allows for simple regeneration, making it a promising solution for the water treatment industry.
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spelling doaj-art-9c49e05f508743bf80fa0a185e5066892024-12-01T12:07:56ZengNature Portfolionpj Clean Water2059-70372024-11-017111110.1038/s41545-024-00419-1Floating 3D-PDMS-Iron oxide molecular baskets for decontaminating diverse pollutants and analyzing structural composition impactsSethu Kalidhasan0Jonghoon Choi1Hee-Young Lee2Department of Chemical Engineering, Kumoh National Institute of TechnologySchool of Integrative Engineering, Chung-Ang UniversityDepartment of Chemical Engineering, Kumoh National Institute of TechnologyAbstract Novel iron oxide-incorporated porous polydimethylsiloxane sponges were developed using a simple, non-toxic two-step process. Characterized through various techniques, these sponges serve as effective photocatalysts, absorbents, and adsorbents for pollutant removal. They demonstrated nearly 100% degradation of rhodamine B under optimal conditions ( ~ 100% with Xe arc lamp, 50 mg, pH 3-9, and 4 h), following a pseudo second-order kinetic model (r2 = 0.9999). The sponges also exhibited good activity for other pollutants, including methylene blue (76–87%), 1,4-dichlorobenzene (57–71%), and azithromycin (82–87%), and maintained high performance over 11 reuse cycles with minimal iron loss. In addition, fresh and used catalysts effectively separated oils (173–680 mg with 50 mg of absorbent, and 10–15 s) and chromium (VI) [~87% with 1 ppm, 50 mg, pH 7, and 24 h] from water. This environmentally sustainable approach produces no toxic waste and allows for simple regeneration, making it a promising solution for the water treatment industry.https://doi.org/10.1038/s41545-024-00419-1
spellingShingle Sethu Kalidhasan
Jonghoon Choi
Hee-Young Lee
Floating 3D-PDMS-Iron oxide molecular baskets for decontaminating diverse pollutants and analyzing structural composition impacts
npj Clean Water
title Floating 3D-PDMS-Iron oxide molecular baskets for decontaminating diverse pollutants and analyzing structural composition impacts
title_full Floating 3D-PDMS-Iron oxide molecular baskets for decontaminating diverse pollutants and analyzing structural composition impacts
title_fullStr Floating 3D-PDMS-Iron oxide molecular baskets for decontaminating diverse pollutants and analyzing structural composition impacts
title_full_unstemmed Floating 3D-PDMS-Iron oxide molecular baskets for decontaminating diverse pollutants and analyzing structural composition impacts
title_short Floating 3D-PDMS-Iron oxide molecular baskets for decontaminating diverse pollutants and analyzing structural composition impacts
title_sort floating 3d pdms iron oxide molecular baskets for decontaminating diverse pollutants and analyzing structural composition impacts
url https://doi.org/10.1038/s41545-024-00419-1
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AT jonghoonchoi floating3dpdmsironoxidemolecularbasketsfordecontaminatingdiversepollutantsandanalyzingstructuralcompositionimpacts
AT heeyounglee floating3dpdmsironoxidemolecularbasketsfordecontaminatingdiversepollutantsandanalyzingstructuralcompositionimpacts