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Titolo:
NOVEL DYE-ATTACHED MACROPOROUS FILMS FOR CADMIUM, ZINC AND LEAD SORPTION - ALKALI-BLUE 6B-ATTACHED MACROPOROUS POLY(2-HYDROXYETHYL METHACRYLATE)
Autore:
DENIZLI A; KESENCI K; ARICA MY; SALIH B; HASIRCI V; PISKIN E;
Indirizzi:
PK 51 SAMANPAZARI TR-06242 ANKARA TURKEY UNIV HACETTEPE,DEPT CHEM TR-06100 ANKARA TURKEY UNIV HACETTEPE,DEPT CHEM ENGN TR-06100 ANKARA TURKEY KIRIKKALE UNIV,DEPT BIOL KIRIKKALE TURKEY METU,DEPT BIOL SCI,BIOTECHNOL RES UNIT ANKARA TURKEY
Titolo Testata:
Talanta
fascicolo: 4, volume: 46, anno: 1998,
pagine: 551 - 558
SICI:
0039-9140(1998)46:4<551:NDMFFC>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
MACRORETICULAR CHELATING RESIN; URANIUM ADSORPTION; LIQUID MEMBRANES; AMIDOXIME GROUPS; COPPER-ION; RECOVERY; SEPARATION; ACID;
Keywords:
ALKALI BLUE 6B; POLY(HEMA) FILMS; HEAVY METAL REMOVAL; CADMIUM(II); ZINC(II); LEAD(II);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
A. Denizli et al., "NOVEL DYE-ATTACHED MACROPOROUS FILMS FOR CADMIUM, ZINC AND LEAD SORPTION - ALKALI-BLUE 6B-ATTACHED MACROPOROUS POLY(2-HYDROXYETHYL METHACRYLATE)", Talanta, 46(4), 1998, pp. 551-558

Abstract

Alkali Blue GB-attached poly(2-hydroxyethyl methacrylate) (poly(HEMA)) microporous films were investigated as chelate forming sorbents for heavy metal removal. Poly(HEMA) microporous films were prepared by UV-initiated photo-polymerization of HEMA in the presence of an initiator(azobisisobutyronitrile (AIBN)). Alkali Blue 6E was attached covalently. These films with a swelling ratio of 58%, and carrying 14.8 mmol Alkali Blue 6E m(-2) which were then used in the removal of Cd(II), Zn(II) and Pb(II) from aqueous media. Adsorption rates were very high, equilibrium was achieved in about 30 min. The maximum adsorption of heavy metal ions onto the Alkali Blue BE-attached films were 41.4 mmol m(-2) for Cd(II), 52.4 mmol m(-2) for Zn(II), and 64.5 mmol m(-2) for Pb(II). When the heavy metal ions competed during the adsorption from a mixture the adsorption values for Cd(II), Zn(II) and Pb(II) were quite close. Heavy metal ions were desorbed by using 0.1 M HNO3. A significant amount of the adsorbed heavy metal ions (up to 95%) could be desorbed in 30 min. Repeated adsorption/desorption cycles showed the feasibility of these novel dye-attached microporous films for heavy metal removal. (C) 1998 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 20:06:16