Adsorption of Mercury(II) Ions by Poly(Hydroxyethylmethacrylate) Adsorbents with Thiazolidine Groups
A wide variety of adsorbents has been reported in the literature for heavy metal adsorption. We have recently developed a new polymer system for the removal of contaminant heavy metal ions from aquatic systems. Thus, poly(hydroxyethylmethacrylate) (PHEMA) microbeads carrying thiazolidine (0.318 mmol...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2002-04-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361702760254405 |
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| author | Ç. Arpa A. Sağlam S. Bektał S. Patir Ö. Genç A. Denizli |
| author_facet | Ç. Arpa A. Sağlam S. Bektał S. Patir Ö. Genç A. Denizli |
| author_sort | Ç. Arpa |
| collection | DOAJ |
| description | A wide variety of adsorbents has been reported in the literature for heavy metal adsorption. We have recently developed a new polymer system for the removal of contaminant heavy metal ions from aquatic systems. Thus, poly(hydroxyethylmethacrylate) (PHEMA) microbeads carrying thiazolidine (0.318 mmol/g) were prepared for the removal of different amounts of mercury(II) ions (50–900 mg/l) from aqueous solutions and at different pH values (3.0–7.0). Adsorption rates were high with adsorption equilibria being reached within 10 min. The adsorption of Hg(II) ions on to the thiazolidine-immobilized microbeads from single solutions amounted to 1.11 mmol/g. The formation constant of the thiazolidine–metal ion complex was investigated by the method of Ružić. The calculated value of the stability constant was 9.11 × 10 5 l/mol for the Hg(II)–thiazolidine complex. PHEMA microbeads carrying thiazolidine may be regenerated by washing with a solution of hydrochloric acid (0.05 M). The maximum desorption ratio was as high as 99%. These PHEMA microbeads may be used repeatedly for more than three adsorption/desorption cycles without any considerable loss in adsorption capacity. |
| format | Article |
| id | doaj-art-9ecaa68bc9f9410785f352f6987bca40 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2002-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-9ecaa68bc9f9410785f352f6987bca402025-01-03T00:10:43ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382002-04-012010.1260/026361702760254405Adsorption of Mercury(II) Ions by Poly(Hydroxyethylmethacrylate) Adsorbents with Thiazolidine GroupsÇ. Arpa0A. Sağlam1S. Bektał2S. Patir3Ö. Genç4A. Denizli5 Department of Chemistry, Hacettepe University, 06532 Beytepe, Ankara, Turkey Department of Chemistry, Hacettepe University, 06532 Beytepe, Ankara, Turkey Department of Chemistry, Hacettepe University, 06532 Beytepe, Ankara, Turkey Department of Science Education, Hacettepe University, 06532 Beytepe, Ankara, Turkey Department of Chemistry, Hacettepe University, 06532 Beytepe, Ankara, Turkey Department of Chemistry, Hacettepe University, 06532 Beytepe, Ankara, TurkeyA wide variety of adsorbents has been reported in the literature for heavy metal adsorption. We have recently developed a new polymer system for the removal of contaminant heavy metal ions from aquatic systems. Thus, poly(hydroxyethylmethacrylate) (PHEMA) microbeads carrying thiazolidine (0.318 mmol/g) were prepared for the removal of different amounts of mercury(II) ions (50–900 mg/l) from aqueous solutions and at different pH values (3.0–7.0). Adsorption rates were high with adsorption equilibria being reached within 10 min. The adsorption of Hg(II) ions on to the thiazolidine-immobilized microbeads from single solutions amounted to 1.11 mmol/g. The formation constant of the thiazolidine–metal ion complex was investigated by the method of Ružić. The calculated value of the stability constant was 9.11 × 10 5 l/mol for the Hg(II)–thiazolidine complex. PHEMA microbeads carrying thiazolidine may be regenerated by washing with a solution of hydrochloric acid (0.05 M). The maximum desorption ratio was as high as 99%. These PHEMA microbeads may be used repeatedly for more than three adsorption/desorption cycles without any considerable loss in adsorption capacity.https://doi.org/10.1260/026361702760254405 |
| spellingShingle | Ç. Arpa A. Sağlam S. Bektał S. Patir Ö. Genç A. Denizli Adsorption of Mercury(II) Ions by Poly(Hydroxyethylmethacrylate) Adsorbents with Thiazolidine Groups Adsorption Science & Technology |
| title | Adsorption of Mercury(II) Ions by Poly(Hydroxyethylmethacrylate) Adsorbents with Thiazolidine Groups |
| title_full | Adsorption of Mercury(II) Ions by Poly(Hydroxyethylmethacrylate) Adsorbents with Thiazolidine Groups |
| title_fullStr | Adsorption of Mercury(II) Ions by Poly(Hydroxyethylmethacrylate) Adsorbents with Thiazolidine Groups |
| title_full_unstemmed | Adsorption of Mercury(II) Ions by Poly(Hydroxyethylmethacrylate) Adsorbents with Thiazolidine Groups |
| title_short | Adsorption of Mercury(II) Ions by Poly(Hydroxyethylmethacrylate) Adsorbents with Thiazolidine Groups |
| title_sort | adsorption of mercury ii ions by poly hydroxyethylmethacrylate adsorbents with thiazolidine groups |
| url | https://doi.org/10.1260/026361702760254405 |
| work_keys_str_mv | AT carpa adsorptionofmercuryiiionsbypolyhydroxyethylmethacrylateadsorbentswiththiazolidinegroups AT asaglam adsorptionofmercuryiiionsbypolyhydroxyethylmethacrylateadsorbentswiththiazolidinegroups AT sbektał adsorptionofmercuryiiionsbypolyhydroxyethylmethacrylateadsorbentswiththiazolidinegroups AT spatir adsorptionofmercuryiiionsbypolyhydroxyethylmethacrylateadsorbentswiththiazolidinegroups AT ogenc adsorptionofmercuryiiionsbypolyhydroxyethylmethacrylateadsorbentswiththiazolidinegroups AT adenizli adsorptionofmercuryiiionsbypolyhydroxyethylmethacrylateadsorbentswiththiazolidinegroups |