Adsorption Behavior of Fe(II) and Fe(III) Ions on Thiourea Cross-Linked Chitosan with Fe(III) as Template
| Autor: | FengLian Ren, ChunYuan Tao, Jun Dai |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Kinetics
Inorganic chemistry Pharmaceutical Science adsorption thiourea cross-linked chitosan template iron ion Ferric Compounds Article Analytical Chemistry Ion Chitosan lcsh:QD241-441 chemistry.chemical_compound symbols.namesake Adsorption lcsh:Organic chemistry Cross linked chitosan Drug Discovery Ferrous Compounds Physical and Theoretical Chemistry Chelating Agents Aqueous solution Organic Chemistry Temperature Langmuir adsorption model Hydrogen-Ion Concentration Thiourea chemistry Models Chemical Chemistry (miscellaneous) symbols Molecular Medicine |
| Zdroj: | Molecules, Vol 17, Iss 4, Pp 4388-4399 (2012) Molecules; Volume 17; Issue 4; Pages: 4388-4399 Molecules |
| ISSN: | 1420-3049 |
| Popis: | A new type of thiourea cross-linked chitosan with Fe(III) as template (TCCTS template) was synthesized. The adsorption of Fe(II) and Fe(III) on this TCCTS template was studied. The factors affecting adsorption such as pH and contact time were considered. The results showed that the optimum pH value for adsorption was pH = 5.0 and the adsorption equilibrium time was about 60 min. The adsorption isotherms and kinetics were investigated, and the equilibrium data agreed very well with the Langmuir model and the pseudo second-order model could describe adsorption process better than the pseudo first-order model. Results also showed that TCCTS template was a favourable adsorbent for Fe(II) and Fe(III) in aqueous solution. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|