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Selective adsorption of indium ions on polyacrylamido-2-methylpropanesulfonic acid-grafted-natural rubber |
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| รหัสดีโอไอ | |
| Creator | 1. Chor Wayakron Phetphaisit 2. Wittawat Wapanyakul 3. Wipharat Chuachuad Chaiyasith 4. Nimit Sriprang |
| Title | Selective adsorption of indium ions on polyacrylamido-2-methylpropanesulfonic acid-grafted-natural rubber |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2561 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 40 |
| Journal No. | 5 |
| Page no. | 1167-1174 |
| Keyword | 2-acrylamido-2-methylpropane sulfonic acid (AMPS), modified natural rubber, adsorption, indium ion, vulcanized rubber |
| URL Website | http://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | The adsorption characteristics for In3+ ions and a standard binary mix of In3+/Fe3+ ions on polyacrylamido-2-methylpropane sulfonic acid-g-natural rubber (PAMPS-g-NR) and its vulcanized form were investigated. The adsorptioncapacity for In3+ was investigated by the batch immersion method. The following parameters were investigated in this study: pH,initial metal concentration, temperature, and regeneration. The adsorption data were fitted with the Freundlich isotherm.Thermodynamic parameters, including Gibbs free energy, enthalpy, and entropy indicate that In3+ adsorption onto grafted NR isa feasible, spontaneous, and exothermic process in the temperature range 303-313 K. Separation of metal ions from a binarysolution based on ionic radius using vulcanized grafted NR was also investigated. The influences of method of vulcanization,solution temperature and electron dose were studied on adsorption separation efficiency for metal ion mixtures. It was found thatthe vulcanized rubber can act as a selective adsorbent. |
