Removal of fluoride ions from water by cerium-carboxymethyl cellulose beads doped with CeO2 nanoparticles

Nilay Kahya; F. Bedia Erim

doi:10.1016/j.ijbiomac.2023.124595

Removal of fluoride ions from water by cerium-carboxymethyl cellulose beads doped with CeO₂ nanoparticles

Nilay Kahya, F. Bedia Erim^*

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

A novel adsorbent for fluoride ions (F⁻) removal was prepared from cerium ion cross-linked carboxymethyl cellulose (CMC) biopolymer beads loaded with CeO₂ nanoparticles (NPs). The characterization of the beads was performed by swelling experiments, scanning electron microscopy and Fourier transforms infrared spectroscopy. The adsorption of fluoride ions from aqueous solutions was carried out with both cerium ion cross-linked CMC beads (CMC[sbnd]Ce) and CeO₂-NPs added beads (CeO₂-CMC-Ce) in a batch system. Optimized adsorption conditions were obtained by testing the parameters such as pH, contact time, adsorbent dose, and shaking rate at 25 °C. The adsorption process is well described by the Langmuir isotherm and pseudo-second-order kinetics. The maximum adsorption capacity was found as 105 and 312 mg/g F⁻ for CMC-Ce and CeO₂-CMC-Ce beads, respectively. Reusability studies showed that, the adsorbent beads have exhibited excellent sustainable properties up to 9 cycle usage. This study suggests that, CMC-Ce composite with CeO₂ nanoparticles is a very effective adsorbent in removing fluoride from water.

Original language	English
Article number	124595
Journal	International Journal of Biological Macromolecules
Volume	242
DOIs	https://doi.org/10.1016/j.ijbiomac.2023.124595
Publication status	Published - 1 Jul 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

Funding

The research was done at Istanbul Technical University, Capillary Electrophoresis, and Biopolymer Applications Research Laboratory. The authors thank the Research Foundation of Istanbul Technical University for the financial support (TDK-2020-42372). The research was done at Istanbul Technical University, Capillary Electrophoresis, and Biopolymer Applications Research Laboratory. The authors thank the Research Foundation of Istanbul Technical University for the financial support ( TDK-2020-42372 ).

Funders	Funder number
Biopolymer Applications Research Laboratory
Istanbul Teknik Üniversitesi	TDK-2020-42372

Keywords

Ceria
Defluoridation
Water treatment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.ijbiomac.2023.124595

Cite this

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title = "Removal of fluoride ions from water by cerium-carboxymethyl cellulose beads doped with CeO2 nanoparticles",

abstract = "A novel adsorbent for fluoride ions (F−) removal was prepared from cerium ion cross-linked carboxymethyl cellulose (CMC) biopolymer beads loaded with CeO2 nanoparticles (NPs). The characterization of the beads was performed by swelling experiments, scanning electron microscopy and Fourier transforms infrared spectroscopy. The adsorption of fluoride ions from aqueous solutions was carried out with both cerium ion cross-linked CMC beads (CMC[sbnd]Ce) and CeO2-NPs added beads (CeO2-CMC-Ce) in a batch system. Optimized adsorption conditions were obtained by testing the parameters such as pH, contact time, adsorbent dose, and shaking rate at 25 °C. The adsorption process is well described by the Langmuir isotherm and pseudo-second-order kinetics. The maximum adsorption capacity was found as 105 and 312 mg/g F− for CMC-Ce and CeO2-CMC-Ce beads, respectively. Reusability studies showed that, the adsorbent beads have exhibited excellent sustainable properties up to 9 cycle usage. This study suggests that, CMC-Ce composite with CeO2 nanoparticles is a very effective adsorbent in removing fluoride from water.",

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year = "2023",

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AU - Kahya, Nilay

AU - Erim, F. Bedia

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N2 - A novel adsorbent for fluoride ions (F−) removal was prepared from cerium ion cross-linked carboxymethyl cellulose (CMC) biopolymer beads loaded with CeO2 nanoparticles (NPs). The characterization of the beads was performed by swelling experiments, scanning electron microscopy and Fourier transforms infrared spectroscopy. The adsorption of fluoride ions from aqueous solutions was carried out with both cerium ion cross-linked CMC beads (CMC[sbnd]Ce) and CeO2-NPs added beads (CeO2-CMC-Ce) in a batch system. Optimized adsorption conditions were obtained by testing the parameters such as pH, contact time, adsorbent dose, and shaking rate at 25 °C. The adsorption process is well described by the Langmuir isotherm and pseudo-second-order kinetics. The maximum adsorption capacity was found as 105 and 312 mg/g F− for CMC-Ce and CeO2-CMC-Ce beads, respectively. Reusability studies showed that, the adsorbent beads have exhibited excellent sustainable properties up to 9 cycle usage. This study suggests that, CMC-Ce composite with CeO2 nanoparticles is a very effective adsorbent in removing fluoride from water.

AB - A novel adsorbent for fluoride ions (F−) removal was prepared from cerium ion cross-linked carboxymethyl cellulose (CMC) biopolymer beads loaded with CeO2 nanoparticles (NPs). The characterization of the beads was performed by swelling experiments, scanning electron microscopy and Fourier transforms infrared spectroscopy. The adsorption of fluoride ions from aqueous solutions was carried out with both cerium ion cross-linked CMC beads (CMC[sbnd]Ce) and CeO2-NPs added beads (CeO2-CMC-Ce) in a batch system. Optimized adsorption conditions were obtained by testing the parameters such as pH, contact time, adsorbent dose, and shaking rate at 25 °C. The adsorption process is well described by the Langmuir isotherm and pseudo-second-order kinetics. The maximum adsorption capacity was found as 105 and 312 mg/g F− for CMC-Ce and CeO2-CMC-Ce beads, respectively. Reusability studies showed that, the adsorbent beads have exhibited excellent sustainable properties up to 9 cycle usage. This study suggests that, CMC-Ce composite with CeO2 nanoparticles is a very effective adsorbent in removing fluoride from water.

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