Removing Pb(II) Ions from Aqueous Solution by a Promising Absorbent of Tannin-Immobilized Cellulose Microspheres

Tannin/cellulose microspheres (T/C) were successfully prepared via a facile homogeneous reaction in a water/oil (W/O) emulsion for removing Pb(II) ions from aqueous solution. The structure of the microspheres was characterized by scanning electron microscopy (SEM), Fourier-transform infrared (FTIR)...

Descripción completa

Detalles Bibliográficos
Autores principales: Pei, Ying, Xu, Gaoqiang, Wu, Xiao, Tang, Keyong, Wang, Guozhen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473306/
https://www.ncbi.nlm.nih.gov/pubmed/30960532
http://dx.doi.org/10.3390/polym11030548
_version_ 1783412400000598016
author Pei, Ying
Xu, Gaoqiang
Wu, Xiao
Tang, Keyong
Wang, Guozhen
author_facet Pei, Ying
Xu, Gaoqiang
Wu, Xiao
Tang, Keyong
Wang, Guozhen
author_sort Pei, Ying
collection PubMed
description Tannin/cellulose microspheres (T/C) were successfully prepared via a facile homogeneous reaction in a water/oil (W/O) emulsion for removing Pb(II) ions from aqueous solution. The structure of the microspheres was characterized by scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, and a zeta potential test. The effects of pH, adsorbent dosage, contact time, and temperature on adsorption ability were investigated. The results showed that T/C microspheres could combine Pb(II)ions via electrostatic attractions and physical adsorption. Adsorption kinetics could be better described by the pseudo-second-order kinetic model. The adsorption behaviors were in agreement with the Langmuir adsorption isotherm model with a fitting correlation coefficient of 0.9992. The maximum adsorption capacity was 23.75 mg/g from the Langmuir isotherm evaluation at 308K with an initial pH of 5. The results suggested that tannin/cellulose microspheres could be a low-cost and effective adsorbent for removing Pb(II) ions from aqueous solution.
format Online
Article
Text
id pubmed-6473306
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-64733062019-05-03 Removing Pb(II) Ions from Aqueous Solution by a Promising Absorbent of Tannin-Immobilized Cellulose Microspheres Pei, Ying Xu, Gaoqiang Wu, Xiao Tang, Keyong Wang, Guozhen Polymers (Basel) Article Tannin/cellulose microspheres (T/C) were successfully prepared via a facile homogeneous reaction in a water/oil (W/O) emulsion for removing Pb(II) ions from aqueous solution. The structure of the microspheres was characterized by scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, and a zeta potential test. The effects of pH, adsorbent dosage, contact time, and temperature on adsorption ability were investigated. The results showed that T/C microspheres could combine Pb(II)ions via electrostatic attractions and physical adsorption. Adsorption kinetics could be better described by the pseudo-second-order kinetic model. The adsorption behaviors were in agreement with the Langmuir adsorption isotherm model with a fitting correlation coefficient of 0.9992. The maximum adsorption capacity was 23.75 mg/g from the Langmuir isotherm evaluation at 308K with an initial pH of 5. The results suggested that tannin/cellulose microspheres could be a low-cost and effective adsorbent for removing Pb(II) ions from aqueous solution. MDPI 2019-03-22 /pmc/articles/PMC6473306/ /pubmed/30960532 http://dx.doi.org/10.3390/polym11030548 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Pei, Ying
Xu, Gaoqiang
Wu, Xiao
Tang, Keyong
Wang, Guozhen
Removing Pb(II) Ions from Aqueous Solution by a Promising Absorbent of Tannin-Immobilized Cellulose Microspheres
title Removing Pb(II) Ions from Aqueous Solution by a Promising Absorbent of Tannin-Immobilized Cellulose Microspheres
title_full Removing Pb(II) Ions from Aqueous Solution by a Promising Absorbent of Tannin-Immobilized Cellulose Microspheres
title_fullStr Removing Pb(II) Ions from Aqueous Solution by a Promising Absorbent of Tannin-Immobilized Cellulose Microspheres
title_full_unstemmed Removing Pb(II) Ions from Aqueous Solution by a Promising Absorbent of Tannin-Immobilized Cellulose Microspheres
title_short Removing Pb(II) Ions from Aqueous Solution by a Promising Absorbent of Tannin-Immobilized Cellulose Microspheres
title_sort removing pb(ii) ions from aqueous solution by a promising absorbent of tannin-immobilized cellulose microspheres
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473306/
https://www.ncbi.nlm.nih.gov/pubmed/30960532
http://dx.doi.org/10.3390/polym11030548
work_keys_str_mv AT peiying removingpbiiionsfromaqueoussolutionbyapromisingabsorbentoftanninimmobilizedcellulosemicrospheres
AT xugaoqiang removingpbiiionsfromaqueoussolutionbyapromisingabsorbentoftanninimmobilizedcellulosemicrospheres
AT wuxiao removingpbiiionsfromaqueoussolutionbyapromisingabsorbentoftanninimmobilizedcellulosemicrospheres
AT tangkeyong removingpbiiionsfromaqueoussolutionbyapromisingabsorbentoftanninimmobilizedcellulosemicrospheres
AT wangguozhen removingpbiiionsfromaqueoussolutionbyapromisingabsorbentoftanninimmobilizedcellulosemicrospheres

Ejemplares similares