HYDROGEL SUPERBASORBENT POLY(ACRYLAMIDE-CO-ACRYLICACID)-CHITOSAN PREPARED BY GAMMA RADIATION FOR ADSORPTION OF Cu2+ AND Fe3+ METALIONS
| Main Authors: | ., Erizal; Pusat Aplikasi Teknologi Isotop dan Radiasi (PATIR) - BATAN Jl. Raya Lebak Bulus No.49, Jakarta 12070, Abidin, Zainal; Pusat Aplikasi Teknologi Isotop dan Radiasi (PATIR) - BATAN Jl. Raya Lebak Bulus No.49, Jakarta 12070, ., Deswita; Pusat Teknologi Bahan Industri Nuklir (PTBIN) - BATAN Kawasan Puspiptek, Serpong 15314, Tangerang, ., Sudirman; Pusat Teknologi Bahan Industri Nuklir (PTBIN) - BATAN Kawasan Puspiptek, Serpong 15314, Tangerang |
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| Other Authors: | BATAN |
| Format: | Article application/pdf eJournal |
| Bahasa: | ind |
| Terbitan: |
BATAN
, 2013
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| Online Access: |
http://jurnal.batan.go.id/index.php/jsmi/article/view/965 |
Daftar Isi:
- Hydrogel superabsorbent of poly(acrylamide-co-acrylic acid) (poly(AAm-ko-AA)) containing chitosan have been prepared by gamma radiation. The use of chitosan was intended to enhance the ability of hydrogels for metal ions adsorption. Acrylamide-acrylic acid (10/15 vol.%) solution mixture with varying chitosan concentration (0,05-0,2 wt%) was exposed to gamma radiation at a single dose 20 kGy (dose rate 10 kGy/h). Gel fraction, swelling ratio, Equilibrium Degree of Swelling (EDS), and the ability of hydrogels at weight ranged of 0-150 g in maximum swelling conditions in absorption Cu2+ and Fe3+ ions (20.000 ppm} have been studied. The result showed that gel fraction decreased from 93 % to 90 % and swelling ratio increased 30-100 g/g at intervals 20-210 minutes with increasing chitosan concentration (0,05-0,20 %). EDS increased from 300 to 600 g/g at intervals 24-72 hours. With increasing weight of hydrogel up to 150 g at maximum chitosan concentration (0.20%) can absorb Cu2+ and Fe3+ ions up to 90 % (~18.000 ppm) at 10 min for each observation of the weight effect on adsorption capacities. The capacity of hydrogels on adsorption Cu2+ and Fe3+ ions at weight ranged 10-50 g was liniear and adsoption rate on Cu2+ ions was lower than Fe3+ ions. The hydrogel structures changed from swollen to shrinked state after metal ions adsorption. Hydrogel poly(AAm-co-AA)-chitosan with absorption capacity in swollen state potentially can be used as an absorbent heavy metal ions pollutant in high concentration.Keywords: Superabsorbent, Irradiation, Chitosan, Adsorption, Metal ions.