التفاصيل البيبلوغرافية
| العنوان: |
The synergistic effect of ultrasound power and magnetite incorporation on the sorption/desorption behavior of Cr(VI) and As(V) oxoanions in an aqueous system |
| المؤلفون: |
Elwakeel, Khalid Z., Shahat, Ahmed, Al-Bogami, Abdullah S., Wijesiri, Buddhi, Goonetilleke, Ashantha |
| المصدر: |
Journal of Colloid and Interface Science |
| بيانات النشر: |
Academic Press |
| سنة النشر: |
2020 |
| المجموعة: |
Queensland University of Technology: QUT ePrints |
| مصطلحات موضوعية: |
Cr(VI)/As(V), Magnetite nanoparticles, Sorption/desorption kinetics, Thiourea-formaldehyde, Ultrasound power |
| الوصف: |
Though abundant studies have targeted the sorption of Cr(VI) and As(V) anions by organic polymers or magnetic metal oxides, there is no research literature on the sorption characteristics of Cr(VI) and As(V) by thiourea-formaldehyde resin (TF) and its magnetic derivative (MTF). TF resin is a strong chelating agent, which has several practical applications. This paper reports on the removal of Cr(VI) and As(V) oxoanions by TF and MTF sorbents. The sorbents were characterized by Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR) spectroscopy, elemental analysis, zetametry, Brunauer-Emmett-Teller (BET) analysis, and differential light scattering (DLS). The synergistic influence of magnetite incorporation and ultrasonic power on sorption kinetics, isotherms, and oxoanion desorption were investigated, including the analysis of the uncertainty in the study results. The relationship between kinetic and equilibrium constants of the two sorbents under normal shaking and ultrasound shaking was analysed. Ultrasound power improved the mass transfer and makes the sorption ultra-fast while magnetite enhanced the sorption capacity. The MTF particles sorbed 4.28 and 1.97 mmol g −1 of Cr(VI) and As(V), respectively, under optimum conditions. Further, desorption kinetics and efficiency of Cr(VI) and As(V) were estimated using normal shaking and ultrasonic agitation. Ultrasound power reduced the time and the concentration of NaCl required for the stabilization of desorption efficiency. |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf |
| اللغة: |
unknown |
| Relation: |
https://eprints.qut.edu.au/199955/1/58804942.pdf; Elwakeel, Khalid Z., Shahat, Ahmed, Al-Bogami, Abdullah S., Wijesiri, Buddhi, & Goonetilleke, Ashantha (2020) The synergistic effect of ultrasound power and magnetite incorporation on the sorption/desorption behavior of Cr(VI) and As(V) oxoanions in an aqueous system. Journal of Colloid and Interface Science, 569, pp. 76-88.; https://eprints.qut.edu.au/199955/; Institute for Future Environments; Science & Engineering Faculty; School of Civil & Environmental Engineering; Centre for Tropical Crops and Biocommodities |
| الاتاحة: |
https://eprints.qut.edu.au/199955/ |
| Rights: |
free_to_read ; http://creativecommons.org/licenses/by-nc-nd/4.0/ ; 2020 Elsevier Inc ; This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au |
| رقم الانضمام: |
edsbas.AC1A07DA |
| قاعدة البيانات: |
BASE |