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Removal of metallic ions from ethanol solutions with modified natural cotton fiber
Author(s) -
Teixeira Claudinei F.,
Nesello Dariane,
Anizelli Pedro R.,
Gardes Bernard J. L.,
Almeida Flaveli A. S.,
Alfaya Antonio A. S.,
Gushikem Yoshitaka,
Alfaya Rení V. S.
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.33703
Subject(s) - adsorption , potentiometric titration , ethanol , metal ions in aqueous solution , metal , chemistry , elution , fiber , ion exchange , solvent , nuclear chemistry , ionic bonding , chloride , langmuir adsorption model , composite number , polymer chemistry , materials science , ion , chromatography , organic chemistry , composite material
A new material of cotton fiber/Al 2 O 3 /SiPy + Cl − , COTALPy, was prepared containing on its surface the polymer silsesquioxane 3‐ n ‐propylpyridinium chloride strongly adhered. This new composite based on long fibers of natural cotton is chemically stable and had its adsorption properties studied. The COTALPy presented a maximum ionic exchange capacity of 0.85 mmol g −1 by potentiometric titulation. The adsorption isotherms of CuCl 2 , ZnCl 2 , CdCl 2 , NiCl 2 , and FeCl 2 in ethanol solutions were determined for each metal. The adsorption process was studied and data compared with the Langmuir model. The maximum adsorption capacities (in mmol g −1 ) were: CuCl 2 = 0.20, ZnCl 2 = 0.18, CdCl 2 = 0.35, NiCl 2 = 0.22, and FeCl 2 = 0.68. Real samples of fuel ethanol were eluted through a column containing the COTALPy, and it presented high‐practical potential for removal of metallic ions. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011