Salman, Mohammed Sadeq and Alhares, Hasanain Saad and Ali, Qahtan Adnan and M-Ridha, Mohanad J. and Mohammed, Sabah J. and Abed, Khalid M. (2022) Cladophora algae modified with CuO nanoparticles for tetracycline removal from aqueous solutions. Water Air and Soil Pollution, 233 (8). ISSN 0049-6979, DOI https://doi.org/10.1007/s11270-022-05813-4.
Full text not available from this repository.Abstract
Modified algae with nano copper oxide (CuO) were used as adsorption media to remove tetracycline (TEC) from aqueous solutions. Functional groups, morphology, structure, and percentages of surfactants before and after adsorption were characterised through Fourier-transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). Several variables, including pH, connection time, dosage, initial concentrations, and temperature, were controlled to obtain the optimum condition. Thermodynamic studies, adsorption isotherm, and kinetics models were examined to describe and recognise the type of interactions involved. Resultantly, the best operation conditions were at pH 7, contact time of 240 min, 5 g/L of dosage, initial concentration of 25 mg/L, and a temperature of 45 degrees C. The removal percentage of TEC under the optimum condition was 96%. Thermodynamic analysis indicated that the removal efficiency was slightly increased with temperature depending on the positive value of Delta & x1d43b;& xdc3b;degrees, thus indicating that the adsorption phenomenon was endothermic. The Langmuir model fitted the study (R-2 = 0.998), demonstrating that the adsorption sites were homogenous. The experimental results were best matched with the second-order kinetic model, implying that chemisorption was the primary process during the adsorption process. Compared to previous research and based on the value of q(max) (15.60 mg/g), the biomass was suitable for TEC removal.
| Item Type: | Article |
|---|---|
| Funders: | None |
| Uncontrolled Keywords: | Adsorption; Cladophora algae; CuO nanoparticles; Antibiotics |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering > Department of Chemical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 08 Nov 2023 08:28 |
| Last Modified: | 08 Nov 2023 08:28 |
| URI: | http://eprints.um.edu.my/id/eprint/41573 |
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