Simultaneous removal of metals Cu2+, Fe3+ and Cr3+ with anions SO4 2- and HPO4 2- using clinoptilolite

Vassilis J. Inglezakis, Antonis A. Zorpas, Maria D. Loizidou, Helen P. Grigoropoulou

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

In the present study the effect of SO4 2- and HPO4 2- on ion exchange of Cu2+, Fe3+ and Cr3+ on natural clinoptilolite is examined under normality of 0.01 N, temperature of 25 ± 2 °C and pH 2-2.5 after four days of equilibration. It is observed that Cu2+ uptake is significantly decreased in the presence of HPO4 2- and SO4 2. The observed effect is less significant for Fe3+ and Cr3+ in the presence of SO4 2- and HPO4 2- respectively. This could possibly be due to the metal-anion complex formation and the nature and charges of the complex species present. Blank solutions show precipitation in the case of Fe3+/HPO4 2- solution, leading in complete removal of Fe3+ from solutions. Precipitation along with ion exchange is resulting in higher removal of Fe3+ from the solution than ion exchange or precipitation alone. Finally, anion co-removal is significant, reaching 80% for HPO4 2- ions.

Original languageEnglish
Pages (from-to)167-171
Number of pages5
JournalMicroporous and Mesoporous Materials
Volume61
Issue number1-3
DOIs
Publication statusPublished - Jul 18 2003
Externally publishedYes

Fingerprint

Anions
Negative ions
Metals
anions
Ion exchange
metals
ions
normality
blanks
Ions
clinoptilolite
Temperature
temperature

Keywords

  • Adsorption
  • Anion complexes
  • Clinoptilolite
  • Heavy metals
  • Ion exchange

ASJC Scopus subject areas

  • Catalysis
  • Materials Science(all)

Cite this

Simultaneous removal of metals Cu2+, Fe3+ and Cr3+ with anions SO4 2- and HPO4 2- using clinoptilolite. / Inglezakis, Vassilis J.; Zorpas, Antonis A.; Loizidou, Maria D.; Grigoropoulou, Helen P.

In: Microporous and Mesoporous Materials, Vol. 61, No. 1-3, 18.07.2003, p. 167-171.

Research output: Contribution to journalArticle

Inglezakis, Vassilis J. ; Zorpas, Antonis A. ; Loizidou, Maria D. ; Grigoropoulou, Helen P. / Simultaneous removal of metals Cu2+, Fe3+ and Cr3+ with anions SO4 2- and HPO4 2- using clinoptilolite. In: Microporous and Mesoporous Materials. 2003 ; Vol. 61, No. 1-3. pp. 167-171.
@article{fbdeb22470284c8abb1c8753d67a0287,
title = "Simultaneous removal of metals Cu2+, Fe3+ and Cr3+ with anions SO4 2- and HPO4 2- using clinoptilolite",
abstract = "In the present study the effect of SO4 2- and HPO4 2- on ion exchange of Cu2+, Fe3+ and Cr3+ on natural clinoptilolite is examined under normality of 0.01 N, temperature of 25 ± 2 °C and pH 2-2.5 after four days of equilibration. It is observed that Cu2+ uptake is significantly decreased in the presence of HPO4 2- and SO4 2. The observed effect is less significant for Fe3+ and Cr3+ in the presence of SO4 2- and HPO4 2- respectively. This could possibly be due to the metal-anion complex formation and the nature and charges of the complex species present. Blank solutions show precipitation in the case of Fe3+/HPO4 2- solution, leading in complete removal of Fe3+ from solutions. Precipitation along with ion exchange is resulting in higher removal of Fe3+ from the solution than ion exchange or precipitation alone. Finally, anion co-removal is significant, reaching 80{\%} for HPO4 2- ions.",
keywords = "Adsorption, Anion complexes, Clinoptilolite, Heavy metals, Ion exchange",
author = "Inglezakis, {Vassilis J.} and Zorpas, {Antonis A.} and Loizidou, {Maria D.} and Grigoropoulou, {Helen P.}",
year = "2003",
month = "7",
day = "18",
doi = "10.1016/S1387-1811(03)00364-0",
language = "English",
volume = "61",
pages = "167--171",
journal = "Microporous and Mesoporous Materials",
issn = "1387-1811",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Simultaneous removal of metals Cu2+, Fe3+ and Cr3+ with anions SO4 2- and HPO4 2- using clinoptilolite

AU - Inglezakis, Vassilis J.

AU - Zorpas, Antonis A.

AU - Loizidou, Maria D.

AU - Grigoropoulou, Helen P.

PY - 2003/7/18

Y1 - 2003/7/18

N2 - In the present study the effect of SO4 2- and HPO4 2- on ion exchange of Cu2+, Fe3+ and Cr3+ on natural clinoptilolite is examined under normality of 0.01 N, temperature of 25 ± 2 °C and pH 2-2.5 after four days of equilibration. It is observed that Cu2+ uptake is significantly decreased in the presence of HPO4 2- and SO4 2. The observed effect is less significant for Fe3+ and Cr3+ in the presence of SO4 2- and HPO4 2- respectively. This could possibly be due to the metal-anion complex formation and the nature and charges of the complex species present. Blank solutions show precipitation in the case of Fe3+/HPO4 2- solution, leading in complete removal of Fe3+ from solutions. Precipitation along with ion exchange is resulting in higher removal of Fe3+ from the solution than ion exchange or precipitation alone. Finally, anion co-removal is significant, reaching 80% for HPO4 2- ions.

AB - In the present study the effect of SO4 2- and HPO4 2- on ion exchange of Cu2+, Fe3+ and Cr3+ on natural clinoptilolite is examined under normality of 0.01 N, temperature of 25 ± 2 °C and pH 2-2.5 after four days of equilibration. It is observed that Cu2+ uptake is significantly decreased in the presence of HPO4 2- and SO4 2. The observed effect is less significant for Fe3+ and Cr3+ in the presence of SO4 2- and HPO4 2- respectively. This could possibly be due to the metal-anion complex formation and the nature and charges of the complex species present. Blank solutions show precipitation in the case of Fe3+/HPO4 2- solution, leading in complete removal of Fe3+ from solutions. Precipitation along with ion exchange is resulting in higher removal of Fe3+ from the solution than ion exchange or precipitation alone. Finally, anion co-removal is significant, reaching 80% for HPO4 2- ions.

KW - Adsorption

KW - Anion complexes

KW - Clinoptilolite

KW - Heavy metals

KW - Ion exchange

UR - http://www.scopus.com/inward/record.url?scp=0042842389&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0042842389&partnerID=8YFLogxK

U2 - 10.1016/S1387-1811(03)00364-0

DO - 10.1016/S1387-1811(03)00364-0

M3 - Article

VL - 61

SP - 167

EP - 171

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

SN - 1387-1811

IS - 1-3

ER -