Foroutan, R and Peighambardoust, SJ and Aghdasinia, H and Mohammadi, R and Ramavandi, B (2020) Modification of bio-hydroxyapatite generated from waste poultry bone with MgO for purifying methyl violet-laden liquids. Environmental Science and Pollution Research, 27 (35). pp. 44218-44229. ISSN 09441344
Full text not available from this repository.Abstract
In the present work, biological hydroxyapatite (Bio-HAp) was generated from waste poultry bone and modified with magnesium oxide (MgO) nanoparticles (Bio-HAp/MgO) and used in the adsorption process of methyl violet (MV). The Bio-HAp and Bio-HAp/MgO mesoporous composites were characterized using physicochemical techniques. Bio-HAp and Bio-HAp/MgO composites had crystalline and mesoporous structures. The specific surface area of Bio-HAp/MgO mesoporous composites (14.7 m2/g) was higher and lower than that of Bio-HAp (4.6 m2/g) and MgO (154.9 m2/g), respectively. The effect of pH (2–10), temperature (25–45 °C), contact time (10–50 min), initial MV concentration (5–25 mg/L), and Bio-HAp/MgO quantity (0.5–2.5 g/L) on the adsorption efficiency was optimized through response surface methodology-central composite design (RSM-CCD). Among four isotherm models, the Freundlich isotherm (R2 > 0.98) was better matched with the equilibrium data. Based on the isotherm parameters (E, n, and RL), the MV adsorption process using Bio-HAp particles and Bio-HAp/MgO mesoporous composites is physical and desirable. The pseudo-second-order (R2 > 0.97) was more potent than the other models for modeling kinetic data. According to the thermodynamic investigation, the MV adsorption was an exothermic and spontaneous process. The mesoporous composite had good reusability to remove MV dye from liquid media up to 5 steps. Bio-HAp particles and Bio-HAp/MgO mesoporous composites were tested for treatment, which significantly reduced the dye content of the real sample. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Biological hydroxyapatite Magnesium oxide Mesoporous composite Textile wastewater |
| Subjects: | WA Public Health |
| Divisions: | Vice Chancellery for Research > Persian_Gulf_Biomedical_Sciences_Research_Institute |
| Depositing User: | خدیجه شبانکاره |
| Date Deposited: | 20 Dec 2020 09:30 |
| Last Modified: | 20 Dec 2020 09:30 |
| URI: | http://eprints.bpums.ac.ir/id/eprint/8993 |
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