Abstract
Various metal-oxide nanoparticles and chitosan were blended to form new adsorbents (M-Oxide-CTS) for removing boron from aqueous solutions in a batch system. The maximum boron adsorption capacity (q = 7.8 mg/g) was reached at pH = 4 within 5 min. Calculations based on Langmuir, Freundlich, and Dubinin–Radushkevich models showed the heterogeneous and physical nature of boron adsorption on M-Oxide-CTS. Modeling of the thermodynamic date indicated the nonspontaneous and exothermic process. The pseudo-second-order model adequately described the boron adsorption on M-Oxide-CTS. Desorption by means of alkaline solution at pH = 12 was carried out successfully.
| Original language | English |
|---|---|
| Pages (from-to) | 1559-1571 |
| Number of pages | 13 |
| Journal | Separation Science and Technology |
| Volume | 52 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 13 Jun 2017 |
Keywords
- Boron adsorption
- chitosan hydrogel
- iron(III) hydroxide
- titanium dioxide nanoparticles
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- Process Chemistry and Technology
- Filtration and Separation
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