3 ADSORPTIONS OF SOME HEAVY-METAL IONS IN AQUEOUS-SOLUTIONS BY ACRYLAMIDE MALEIC-ACID HYDROGELS

Author(s): SARAYDIN, D; KARADAG, E; GUVEN, O

Title: ADSORPTIONS OF SOME HEAVY-METAL IONS IN AQUEOUS-SOLUTIONS BY ACRYLAMIDE MALEIC-ACID HYDROGELS

Source: SEPARATION SCIENCE AND TECHNOLOGY, 30 (17): 3287-3298 1995

Language: English

Document Type: Article

Author Keywords: HYDROGEL; POLY(ACRYLAMIDE MALEIC ACID); ADSORPTION; URANYL ION; HEAVY METAL IONS

Keywords Plus: AMIDOXIME GROUPS; POLYMER

Abstract: In this study, acrylamide-maleic acid (AAm/MA) hydrogels in the form of rod have been prepared by gamma-radiation. They have been used for adsorption of some heavy metal ions such as uranium, iron, and copper. For the hydrogel containing 40 mg of maleic acid and irradiated at 3.73 kGy, maximum and minimum swellings in the aqueous solutions of the heavy metal ions have been observed with water (1480%) and the aqueous solution of iron(III) nitrate (410%), respectively. Diffusions of water and heavy metal ions onto hydrogels have been found to be of the non-Fickian type of diffusion. In experiments of uranyl ions adsorption, Type II adsorption has been found. One gram of AAm/MA hydrogels sorbed 14-86 mg uranyl ions from solutions of uranyl acetate, 14-90 mg uranyl ions from solutions of uranyl nitrate, 16-39 mg iron ions from solutions of iron(IV) nitrate, and 28-81 mg copper ions from solutions of copper acetate, while acrylamide hydrogel did not sorb any heavy metals ions.

Addresses: HACETTEPE UNIV,DEPT CHEM,ANKARA 06532,TURKEY

Reprint Address: SARAYDIN, D, CUMHURIYET UNIV,DEPT CHEM,SIVAS 58140,TURKEY.

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Cited Reference Count: 21

Times Cited: 14

Publisher: MARCEL DEKKER INC

Publisher Address: 270 MADISON AVE, NEW YORK, NY 10016

ISSN: 0149-6395

29-char Source Abbrev.: SEPAR SCI TECHNOL

ISO Source Abbrev.: Sep. Sci. Technol.

Source Item Page Count: 12

Subject Category: CHEMISTRY, MULTIDISCIPLINARY; ENGINEERING, CHEMICAL

ISI Document Delivery No.: RZ522