| dc.creator |
Say, R |
|
| dc.creator |
Tuzmen, N |
|
| dc.creator |
Alsancak, G |
|
| dc.creator |
Senel, S |
|
| dc.creator |
Denizli, A |
|
| dc.date |
2003-01-01T01:00:00Z |
|
| dc.date.accessioned |
2021-12-03T11:29:05Z |
|
| dc.date.available |
2021-12-03T11:29:05Z |
|
| dc.identifier |
59509be4-099c-4daa-9f8b-147978fdcc00 |
|
| dc.identifier |
10.1016/s1381-5148(02)00221-3 |
|
| dc.identifier |
https://avesis.sdu.edu.tr/publication/details/59509be4-099c-4daa-9f8b-147978fdcc00/oai |
|
| dc.identifier.uri |
http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/92011 |
|
| dc.description |
In this study. the Hg2+ adsorption-desorption properties of poly(ethyleneimine) (PEI)-attached poly(2-hydroxyethylmethacry late) (PHEMA) beads were investigated. Spherical PHEMA beads with an average size of 150-200 mum were obtained by suspension polymerization of 2-hydroxyethylmethacrylate conducted in an aqueous dispersion medium. Owing to the reasonably rough character of the bead surface, PHEMA beads had a specific surface area of 14.8 m(2)/g. PEI chains could be covalently attached onto the PHEMA beads with equilibrium binding capacities up to 50 mg PEI/g beads. PEI-attached PHEMA beads were utilized as adsorbent in the adsorption-desorption of Hg2+ ions from synthetic solutions. The adsorption process was fast; 90% of adsorption occurred within 45 min and equilibrium was reached at around I h. The maximum Hg2+ adsorption capacity obtained was 1.67 mmol/g at a pH of about pH 5.0. Adsorption behavior can be described at least approximately by the Langmuir equation. The metal-chelating beads can be easily regenerated by 0.1 M HNO3 with higher effectiveness. Adsorption of heavy metal ions from artificial wastewater was also studied. The adsorption capacities were 1.32 mmol/g for Hg2+, 0.34 mmol/g for Ni2+ and 0.42 mmol/g for Cu2+. (C) 2003 Elsevier Science B.V. All rights reserved. |
|
| dc.language |
eng |
|
| dc.rights |
info:eu-repo/semantics/closedAccess |
|
| dc.title |
Mercury removal from synthetic solutions using poly (2-hydroxyethylmethacrylate) gel beads modified with poly (ethyleneimine) |
|
| dc.type |
info:eu-repo/semantics/article |
|