Role of anion composition of aqueous solution in forming morphology and surface of particles Fe2O3 in the course of deposition and their sorption properties

Role of anion composition of aqueous solution in forming morphology and surface of particles... An effect of nature of anions (NO 3 − , Cl−, HCO 3 − ) present in the solution of deposition on the particle formation of Fe2O3 was investigated. It was established that from nitrate solutions large shapeless agglomerates (50–200 μm) are formed, which are composed of spherical particles (specific surface S sp = 150 m2 g−1). Introduction of chloride ions leads to the formation of cubic and oval dense particles with size of about 0.12–0.20 μm (S sp = 30 m2 g−1). An efficiency of extraction of metals from aqueous solutions was examined. The metals under study can be arranged relative to pH50 in a series: Eu3+ > Ce3+ > Cu2+ > Zn2+ > Cd2+ > Co2+ > Mn2+ > Sr2+. It was found that the sorption capacity of the synthesized Fe2O3 particles with respect to the copper is 15.6 (S sp = 150 m2 g−1) and 9.2 mg g−1 (S sp = 30 m2 g−1). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Role of anion composition of aqueous solution in forming morphology and surface of particles Fe2O3 in the course of deposition and their sorption properties

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Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427214080096
Publisher site
See Article on Publisher Site

Abstract

An effect of nature of anions (NO 3 − , Cl−, HCO 3 − ) present in the solution of deposition on the particle formation of Fe2O3 was investigated. It was established that from nitrate solutions large shapeless agglomerates (50–200 μm) are formed, which are composed of spherical particles (specific surface S sp = 150 m2 g−1). Introduction of chloride ions leads to the formation of cubic and oval dense particles with size of about 0.12–0.20 μm (S sp = 30 m2 g−1). An efficiency of extraction of metals from aqueous solutions was examined. The metals under study can be arranged relative to pH50 in a series: Eu3+ > Ce3+ > Cu2+ > Zn2+ > Cd2+ > Co2+ > Mn2+ > Sr2+. It was found that the sorption capacity of the synthesized Fe2O3 particles with respect to the copper is 15.6 (S sp = 150 m2 g−1) and 9.2 mg g−1 (S sp = 30 m2 g−1).

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Nov 26, 2014

References

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