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Volume 10
Issue 2
10.3390/toxics10020098
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Article

Removal of Hexavalent Chromium(VI) from Wastewater Using Chitosan-Coated Iron Oxide Nanocomposite Membranes

by
Jung Eun Park
1,†,
Jun-Ho Shin
1,†,
Wonzin Oh
2,
Sang-June Choi
2,
Jeongju Kim
3,
Chorong Kim
3 and
Jongho Jeon
1,*
1
Department of Applied Chemistry, College of Engineering, Kyungpook National University, Daegu 41566, Korea
2
School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, Korea
3
Korea Hydro & Nuclear Power Co., Ltd., Central Research Institute, Daejeon 34101, Korea
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Toxics 2022, 10(2), 98; https://doi.org/10.3390/toxics10020098
Submission received: 30 December 2021 / Revised: 15 February 2022 / Accepted: 16 February 2022 / Published: 19 February 2022
(This article belongs to the Special Issue Advanced Research on the Removal of Pollutants by Nanomaterials)
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Abstract

Chromium is a toxic and carcinogenic heavy metal that originates from various human activities. Therefore, the effective removal of chromium from aqueous solutions is an extremely important global challenge. Herein, we report a chitosan-coated iron oxide nanoparticle immobilized hydrophilic poly(vinylidene) fluoride membrane (Chi@Fe2O3–PVDF) which can potentially be used for efficient removal of hexavalent chromium(VI) by a simple filtration process. Membrane filtration is an easy and efficient method for treating large volumes of water in a short duration. The adsorption experiments were conducted by batch and continuous in-flow systems. The experimental data showed rapid capture of hexavalent chromium (Cr(VI)) which can be explained by the pseudo-second-order kinetic and Langmuir isotherm model. The nanocomposite membrane exhibited high adsorption capacity for Cr(VI) (14.451 mg/g in batch system, 14.104 mg/g in continuous in-flow system). Moreover, its removal efficiency was not changed significantly in the presence of several competing ions, i.e., Cl−, NO3−, SO42−, and PO43−. Consequently, the Chi@Fe2O3-PVDF-based filtration process is expected to show a promising direction and be developed as a practical method for wastewater treatment.
Keywords: composite membrane; filtration; immobilization; water treatment; hexavalent chromium composite membrane; filtration; immobilization; water treatment; hexavalent chromium

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MDPI and ACS Style

Park, J.E.; Shin, J.-H.; Oh, W.; Choi, S.-J.; Kim, J.; Kim, C.; Jeon, J. Removal of Hexavalent Chromium(VI) from Wastewater Using Chitosan-Coated Iron Oxide Nanocomposite Membranes. Toxics 2022, 10, 98. https://doi.org/10.3390/toxics10020098

AMA Style

Park JE, Shin J-H, Oh W, Choi S-J, Kim J, Kim C, Jeon J. Removal of Hexavalent Chromium(VI) from Wastewater Using Chitosan-Coated Iron Oxide Nanocomposite Membranes. Toxics. 2022; 10(2):98. https://doi.org/10.3390/toxics10020098

Chicago/Turabian Style

Park, Jung Eun, Jun-Ho Shin, Wonzin Oh, Sang-June Choi, Jeongju Kim, Chorong Kim, and Jongho Jeon. 2022. "Removal of Hexavalent Chromium(VI) from Wastewater Using Chitosan-Coated Iron Oxide Nanocomposite Membranes" Toxics 10, no. 2: 98. https://doi.org/10.3390/toxics10020098

APA Style

Park, J. E., Shin, J.-H., Oh, W., Choi, S.-J., Kim, J., Kim, C., & Jeon, J. (2022). Removal of Hexavalent Chromium(VI) from Wastewater Using Chitosan-Coated Iron Oxide Nanocomposite Membranes. Toxics, 10(2), 98. https://doi.org/10.3390/toxics10020098

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