Abstract
The sorption of Fe(III) at low pH range from 1 to 4.5 on open cell polyether type HTTA-loaded polyurethane foam has been carried out using batch technique. The optimum shaking time of 2.5 · 10-4 M solution of Fe(III) was found to be 30 minutes. The concept of macropore and micropore nature of polyurethane foam sorbent offers unique advantages of adsorption. Freundlich and Langmuir adsorption isotherms are followed at low concentration range from 1 · 10-4 to 3 · 10-4 M solution of Fe(III). The Freundlich constant (1/n = 0.46 ± 0.013 and K = 9.16 ± 1.39 mg · g-1) and Langmuir isotherm constants (M = 21.78 mg · g-1 and b = 88.41 ± 9.731 · g-1) were established. The sorption mean free energy E = 12.22 ± 0.09 kJ · mol-1 and loading capacity C(m) = 145.21 ± 6.1 mg · g-1 were evaluated using Dubinin-Radushkevich isotherm, which suggested that the adsorption mechanism was chemisorption.
| Original language | English |
|---|---|
| Pages (from-to) | 283-292 |
| Number of pages | 10 |
| Journal | Journal of Radioanalytical and Nuclear Chemistry |
| Volume | 211 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1996 |
| Externally published | Yes |
ASJC Scopus subject areas
- Analytical Chemistry
- Nuclear Energy and Engineering
- Radiology Nuclear Medicine and imaging
- Pollution
- Spectroscopy
- Public Health, Environmental and Occupational Health
- Health, Toxicology and Mutagenesis