Zirconium/lanthanum-modified chitosan/polyvinyl alcohol composite adsorbent for rapid removal of fluoride.

Fluorides / chemistry Chitosan / chemistry Polyvinyl Alcohol Lanthanum / chemistry Zirconium / chemistry Drinking Water Adsorption Spectroscopy, Fourier Transform Infrared Kinetics Hydrogen-Ion Concentration Water Pollutants, Chemical / chemistry
Adsorbent Fluoride Polysaccharide Synthetic polymer Water decontamination

Journal

International journal of biological macromolecules
ISSN: 1879-0003
Titre abrégé: Int J Biol Macromol
Pays: Netherlands
ID NLM: 7909578

Informations de publication

Date de publication:
15 Jul 2023
Historique:
received: 16 04 2023
revised: 22 05 2023
accepted: 27 05 2023
medline: 19 6 2023
pubmed: 3 6 2023
entrez: 2 6 2023
Statut: ppublish

Résumé

A novel and easily separable adsorbent in the shape of a membrane for the rapid removal of fluoride from water was prepared after testing Zr, La and LaZr to modify a chitosan/polyvinyl alcohol composite adsorbent (CS/PVA-Zr, CS/PVA-La, CS/PVA-LA-Zr). The CS/PVA-La-Zr composite adsorbent can remove a large amount of fluoride within 1 min of contact time, and the adsorption equilibrium can be reached within 15 min. The fluoride adsorption behavior of the CS/PVA-La-Zr composite can be described by pseudo-second-order kinetics and Langmuir isotherms models. The morphology and structure of the adsorbents were characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The adsorption mechanism was studied using Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS), and which showed that ion exchange occurred mainly with hydroxide and fluoride ions. This study showed that an easily operable, low-cost and environmentally friendly CS/PVA-La-Zr has the potential to remove fluoride effectively from drinking water in a short time.

Identifiants

DOI: 10.1016/j.ijbiomac.2023.125155 PMID: 37268075
pubmed: 37268075
pii: S0141-8130(23)02049-4
doi: 10.1016/j.ijbiomac.2023.125155
pii:
doi:

Substances chimiques

Fluorides Q80VPU408O
Chitosan 9012-76-4
Polyvinyl Alcohol 9002-89-5
Lanthanum 6I3K30563S
Zirconium C6V6S92N3C
Drinking Water 0
Water Pollutants, Chemical 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

125155

Informations de copyright

Copyright © 2023 Elsevier B.V. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of competing interest All authors disclosed no relevant relationships.

Auteurs

Liping Mei (L)

State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, PR China.

Jiao Wei (J)

State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, PR China.

Ruirui Yang (R)

State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, PR China.

Fei Ke (F)

State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, PR China.

Chuanyi Peng (C)

State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, PR China.

Ruyan Hou (R)

State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, PR China.

Junsheng Liu (J)

School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiu Avenue, Hefei 230601, PR China. Electronic address: jsliu@hfuu.edu.cn.

Xiaochun Wan (X)

State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, PR China. Electronic address: xcwan@ahau.edu.cn.

Huimei Cai (H)

State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, PR China. Electronic address: chm@ahau.edu.cn.

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Classifications MeSH

questionsmedicales.fr › Produits chimiques inorganiques › Composés du fluor › Acide fluorhydrique › Fluorures › Zirconium/lanthanum-modified...
questionsmedicales.fr › Glucides › Polyosides › Chitine › Chitosane › Zirconium/lanthanum-modified...
questionsmedicales.fr › Technologie, industrie et agriculture › Produits manufacturés › Matériaux biomédicaux et dentaires › Polymères › Matières plastiques › Polyvinyles › Poly(alcool vinylique) › Zirconium/lanthanum-modified...
questionsmedicales.fr › Produits chimiques inorganiques › Métaux › Terres rares › Lanthanides › Lanthane › Zirconium/lanthanum-modified...
questionsmedicales.fr › Produits chimiques inorganiques › Métaux › Métaux lourds › Zirconium › Zirconium/lanthanum-modified...
questionsmedicales.fr › Aliments et boissons › Boissons › Eau de boisson › Zirconium/lanthanum-modified...
questionsmedicales.fr › Phénomènes chimiques › Adsorption › Zirconium/lanthanum-modified...
questionsmedicales.fr › Techniques d'investigation › Techniques de chimie analytique › Analyse spectrale › Spectrophotométrie › Spectrophotométrie IR › Spectroscopie infrarouge à transformée de Fourier › Zirconium/lanthanum-modified...
questionsmedicales.fr › Phénomènes chimiques › Phénomènes biochimiques › Cinétique › Zirconium/lanthanum-modified...
questionsmedicales.fr › Phénomènes chimiques › Concentration en ions d'hydrogène › Zirconium/lanthanum-modified...
questionsmedicales.fr › Actions chimiques et utilisations › Actions toxiques › Polluants environnementaux › Polluants de l'eau › Polluants chimiques de l'eau › Zirconium/lanthanum-modified...