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Extraction of metal ions from water with tetrapyrazolic macrocycles bound to Merrifield resin and silica gel
Author(s) -
Radi Smaail,
Ramdani Abdelkrim,
Lekchiri Yahya,
Morcellet Michel,
Crini Grégorio,
Janus Ludovic,
Martel Bernard
Publication year - 2000
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 - 10.1002/1097-4628(20001227)78:14<2495::aid-app90>3.0.co;2-s
Subject(s) - extraction (chemistry) , metal ions in aqueous solution , silica gel , covalent bond , polymer chemistry , grafting , chemistry , metal , alkali metal , calixarene , selectivity , materials science , chemical engineering , organic chemistry , catalysis , polymer , molecule , engineering
Two macrocyclic tetrapyrazolic compounds having internal cavities of different sizes of were covalently bound both to a porous silica gel and to a Merrifield resin. The ability of these sorbents to extract heavy and akali metal ion from water by a solid–liquid extraction process was studied and compared to results of classical liquid–liquid extraction with the unbound pyrazole compounds. The grafting at the surface of silica does not affect the complexing properties of the ligands. However, the hydrophobic nature of the Merrifield resin has a marked effect, especially on the selectivity of extraction between the alkali metals. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 2495–2499, 2000