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Titolo:
Procion blue MX-3G-attached microporous poly(2-hydroxyethyl methacrylate) membranes for copper, arsenic, cadmium, and mercury adsorption
Autore:
Denizli, A; Say, R; Testereci, HN; Arica, MY;
Indirizzi:
Hacettepe Univ, Dept Chem, TR-06532 Ankara, Turkey Hacettepe Univ AnkaraTurkey TR-06532 Dept Chem, TR-06532 Ankara, Turkey Hacettepe Univ, Dept Sci Educ, TR-06532 Ankara, Turkey Hacettepe Univ Ankara Turkey TR-06532 Sci Educ, TR-06532 Ankara, Turkey Kirikkale Univ, Dept Chem, Kirikkale, Turkey Kirikkale Univ Kirikkale Turkey kale Univ, Dept Chem, Kirikkale, Turkey Kirikkale Univ, Dept Biol, Kirikkale, Turkey Kirikkale Univ Kirikkale Turkey kale Univ, Dept Biol, Kirikkale, Turkey
Titolo Testata:
SEPARATION SCIENCE AND TECHNOLOGY
fascicolo: 12, volume: 34, anno: 1999,
pagine: 2369 - 2381
SICI:
0149-6395(1999)34:12<2369:PBMMPM>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEPARATION; RESINS; RECOVERY; IONS; ZINC; ACID;
Keywords:
Procion Blue MX-3G; pHEMA membranes; heavy metal removal, copper(II), arsenic(III), cadmium(II), and mercury(II);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Denizli, A PK 51, TR-06242 Ankara, Turkey PK 51 Ankara Turkey TR-06242PK 51, TR-06242 Ankara, Turkey
Citazione:
A. Denizli et al., "Procion blue MX-3G-attached microporous poly(2-hydroxyethyl methacrylate) membranes for copper, arsenic, cadmium, and mercury adsorption", SEP SCI TEC, 34(12), 1999, pp. 2369-2381

Abstract

pHEMA membranes carrying 25.6 mmol Procion Blue MX-3G/m(2) were used for removal of heavy metal ions (i.e., copper, arsenic, cadmium, and mercury) from aqueous media containing different amounts of these ions (0.1-4.5 mmol/L) and at different pH values (2.0-8.0). The maximum adsorption capacities of heavy metal ions onto Procion Blue MX-3G-attached membranes under noncompetitive conditions were 5.6 mmol/m(2) for Cu(II), 19.6 mmol/m(2) for As(III), 46.2 mmol/m(2) for Cd(II), and 119.6 mmol/m(2) for Hg(II). The competitive adsorption capacities of the heavy metal ions were 6.9 mmol/m(2) for Cu(II), 21.2 mmol/m(2) for As(III), 33.9 mmol/m(2) for Cd(II), and 52.5 mmol/m(2) for Hg(II). The same affinity order was observed under noncompetitive and competitive adsorption: Hg(II) > Cd(IT) > As(III) > Cu(II). The adsorption of heavy metal ions increased with increasing pH and reached a plateau value at around pH 6.0. Adsorption of heavy metal ions from artificial wastewater was also studied. The adsorption capacities are 3.5 mmol/m(2) for Cu(I), 10.2 mmol/m(2) for As(III), 24.7 mmol/m(2) for Cd(II), and 37.3 mmol/m(2) for Hg(II). Desorption of heavy metal ions was performed using 0.1 M HNO3. Procion Blue MX-3G-attached membranes are suitable for repeated use of more than 5 cycles without noticeable loss of capacity.

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Documento generato il 10/07/20 alle ore 09:43:57