Investigation of performances and mechanism of fluoride removal by Fe(III)-loaded ligand exchange cotton cellulose adsorbent

Ya Ping Zhao; Xiu Yan Li; Lu Liu; Fu Hua Chen

doi:10.1007/bf02832442

Investigation of performances and mechanism of fluoride removal by Fe(III)-loaded ligand exchange cotton cellulose adsorbent

Ya Ping Zhao, Xiu Yan Li, Lu Liu, Fu Hua Chen

School of Ecology and Environmental Sciences

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

4 Scopus citations

Abstract

Novel adsorbent, Fe(III)-loaded ligand exchange cotton cellulose adsorbent [Fe(III)LECCA], was used to investigate the adsorption performances and mechanism of fluoride removal from aqueous solutions. The adsorbent was found to adsorb fluoride rapidly and effectively. The fluoride removal was influenced by pH. Adsorption mode followed first-order reaction at different temperature, theapparent adsorption activated energy E_a was 6.37 kJ · mol^-1, and adsorption enthalpy ΔH was 5.35 kJ · mol^-1. The adsorption capacity of fluoride on adsorbent was 3.2 mmol · g^-1 (dry weight). The maximal integer coordination ratio of fluoride with Fe (III) LECCA was 3:1. The ligand exchange mechanism of adsorption was elucidated through chemical methods and IR spectral analysis.

Original language	English
Pages (from-to)	936-940
Number of pages	5
Journal	Wuhan University Journal of Natural Sciences
Volume	10
Issue number	5
DOIs	https://doi.org/10.1007/bf02832442
State	Published - Sep 2005

Keywords

Adsorption mechanism
Fe(III) LECCA
Fluoride
Ligand exchange

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10.1007/bf02832442

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title = "Investigation of performances and mechanism of fluoride removal by Fe(III)-loaded ligand exchange cotton cellulose adsorbent",

abstract = "Novel adsorbent, Fe(III)-loaded ligand exchange cotton cellulose adsorbent [Fe(III)LECCA], was used to investigate the adsorption performances and mechanism of fluoride removal from aqueous solutions. The adsorbent was found to adsorb fluoride rapidly and effectively. The fluoride removal was influenced by pH. Adsorption mode followed first-order reaction at different temperature, theapparent adsorption activated energy Ea was 6.37 kJ · mol-1, and adsorption enthalpy ΔH was 5.35 kJ · mol-1. The adsorption capacity of fluoride on adsorbent was 3.2 mmol · g-1 (dry weight). The maximal integer coordination ratio of fluoride with Fe (III) LECCA was 3:1. The ligand exchange mechanism of adsorption was elucidated through chemical methods and IR spectral analysis.",

keywords = "Adsorption mechanism, Fe(III) LECCA, Fluoride, Ligand exchange",

author = "Zhao, \{Ya Ping\} and Li, \{Xiu Yan\} and Lu Liu and Chen, \{Fu Hua\}",

year = "2005",

month = sep,

doi = "10.1007/bf02832442",

language = "英语",

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pages = "936--940",

journal = "Wuhan University Journal of Natural Sciences",

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TY - JOUR

T1 - Investigation of performances and mechanism of fluoride removal by Fe(III)-loaded ligand exchange cotton cellulose adsorbent

AU - Zhao, Ya Ping

AU - Li, Xiu Yan

AU - Liu, Lu

AU - Chen, Fu Hua

PY - 2005/9

Y1 - 2005/9

N2 - Novel adsorbent, Fe(III)-loaded ligand exchange cotton cellulose adsorbent [Fe(III)LECCA], was used to investigate the adsorption performances and mechanism of fluoride removal from aqueous solutions. The adsorbent was found to adsorb fluoride rapidly and effectively. The fluoride removal was influenced by pH. Adsorption mode followed first-order reaction at different temperature, theapparent adsorption activated energy Ea was 6.37 kJ · mol-1, and adsorption enthalpy ΔH was 5.35 kJ · mol-1. The adsorption capacity of fluoride on adsorbent was 3.2 mmol · g-1 (dry weight). The maximal integer coordination ratio of fluoride with Fe (III) LECCA was 3:1. The ligand exchange mechanism of adsorption was elucidated through chemical methods and IR spectral analysis.

AB - Novel adsorbent, Fe(III)-loaded ligand exchange cotton cellulose adsorbent [Fe(III)LECCA], was used to investigate the adsorption performances and mechanism of fluoride removal from aqueous solutions. The adsorbent was found to adsorb fluoride rapidly and effectively. The fluoride removal was influenced by pH. Adsorption mode followed first-order reaction at different temperature, theapparent adsorption activated energy Ea was 6.37 kJ · mol-1, and adsorption enthalpy ΔH was 5.35 kJ · mol-1. The adsorption capacity of fluoride on adsorbent was 3.2 mmol · g-1 (dry weight). The maximal integer coordination ratio of fluoride with Fe (III) LECCA was 3:1. The ligand exchange mechanism of adsorption was elucidated through chemical methods and IR spectral analysis.

KW - Adsorption mechanism

KW - Fe(III) LECCA

KW - Fluoride

KW - Ligand exchange

UR - https://www.scopus.com/pages/publications/27244437056

U2 - 10.1007/bf02832442

DO - 10.1007/bf02832442

M3 - 文章

AN - SCOPUS:27244437056

SN - 1007-1202

VL - 10

SP - 936

EP - 940

JO - Wuhan University Journal of Natural Sciences

JF - Wuhan University Journal of Natural Sciences

IS - 5

ER -

Investigation of performances and mechanism of fluoride removal by Fe(III)-loaded ligand exchange cotton cellulose adsorbent

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Keywords

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