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Title: Uptake of metal ions by a silica-based tetraphenylporphyrin sorbent

Abstract

The [5-p-carboxyphenyl-10,15,20-triphenyl]porphyrin (TPP) covalently attached to aminopropyl silica gel was examined with respect to the sorption of transition metal ions. The distribution coefficients (K{sub d}) are reported for some metal ions with this new sorbent as a function of pH. It was found that in optimum pH conditions the sorption of Cu(II) and Fe(III) is much faster than that of Co(II) and Cr(III). The binding of metal ions is strongly affected by the presence of various species accelerating the complex formation. The application of porphyrin ligands for preconcentration and metal-matrix separation was also examined using complex formation in solution coupled with an anion exchange resin and column chelation procedure, e.g. sorption of metal on an anion exchanger previously loaded with tetra(4-carboxyphenyl)porphyrin.

Authors:
; ;
Publication Date:
Research Org.:
Univ. of Warsaw (PL)
OSTI Identifier:
20000561
Alternate Identifier(s):
OSTI ID: 20000561
Resource Type:
Journal Article
Journal Name:
Solvent Extraction and Ion Exchange
Additional Journal Information:
Journal Volume: 17; Journal Issue: 5; Other Information: PBD: Sep 1999; Journal ID: ISSN 0736-6299
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 54 ENVIRONMENTAL SCIENCES; PORPHYRINS; SORPTIVE PROPERTIES; SILICA GEL; COPPER; IRON; COBALT; CHROMIUM; ION EXCHANGE; SORPTION; WASTE WATER; WATER TREATMENT

Citation Formats

Pyrzynska, K., Sadowska, M., and Trojanowicz, M. Uptake of metal ions by a silica-based tetraphenylporphyrin sorbent. United States: N. p., 1999. Web.
Pyrzynska, K., Sadowska, M., & Trojanowicz, M. Uptake of metal ions by a silica-based tetraphenylporphyrin sorbent. United States.
Pyrzynska, K., Sadowska, M., and Trojanowicz, M. Wed . "Uptake of metal ions by a silica-based tetraphenylporphyrin sorbent". United States.
@article{osti_20000561,
title = {Uptake of metal ions by a silica-based tetraphenylporphyrin sorbent},
author = {Pyrzynska, K. and Sadowska, M. and Trojanowicz, M.},
abstractNote = {The [5-p-carboxyphenyl-10,15,20-triphenyl]porphyrin (TPP) covalently attached to aminopropyl silica gel was examined with respect to the sorption of transition metal ions. The distribution coefficients (K{sub d}) are reported for some metal ions with this new sorbent as a function of pH. It was found that in optimum pH conditions the sorption of Cu(II) and Fe(III) is much faster than that of Co(II) and Cr(III). The binding of metal ions is strongly affected by the presence of various species accelerating the complex formation. The application of porphyrin ligands for preconcentration and metal-matrix separation was also examined using complex formation in solution coupled with an anion exchange resin and column chelation procedure, e.g. sorption of metal on an anion exchanger previously loaded with tetra(4-carboxyphenyl)porphyrin.},
doi = {},
journal = {Solvent Extraction and Ion Exchange},
issn = {0736-6299},
number = 5,
volume = 17,
place = {United States},
year = {1999},
month = {9}
}