Iron Molybdate Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions
The present study investigated iron molybdate (Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub>), synthesized via a simple method, as a nanosorbent for methylene blue (MB) dye removal from aqueous solutions. Investigations of the effects of several parameters like cont...
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MDPI AG
2020-11-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/25/21/5100 |
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| author | Ahmed Mohmoud Souad Rakass Hicham Oudghiri Hassani Fethi Kooli Mostafa Abboudi Sami Ben Aoun |
| author_facet | Ahmed Mohmoud Souad Rakass Hicham Oudghiri Hassani Fethi Kooli Mostafa Abboudi Sami Ben Aoun |
| author_sort | Ahmed Mohmoud |
| collection | DOAJ |
| description | The present study investigated iron molybdate (Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub>), synthesized via a simple method, as a nanosorbent for methylene blue (MB) dye removal from aqueous solutions. Investigations of the effects of several parameters like contact time, adsorbent dose, initial dye concentration, temperature and pH were carried out. The results showed that MB removal was affected, significantly, by adsorbent dose and pH. Interestingly, lower values of adsorbent dose resulted in the removal of higher amounts of MB. At the optimum pH, the removal efficiency of 99% was gained with an initial MB concentration of ≤60 ppm. The kinetic study specified an excellent correlation of the experimental results with the pseudo-second-order kinetics model. Thermodynamic studies proved a spontaneous, favorable and endothermic removal. The maximum amount of removal capacity of MB dye was 6173 mg/g, which was determined from the Langmuir model. The removal efficiency was shown to be retained after three cycles of reuse, as proven by thermal regeneration tests. The presence and adsorption of the dye onto the Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> nanoparticle surface, as well as the regeneration of the latter, was ascertained by scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR). These findings are indicative that the investigated nanosorbent is an excellent candidate for the removal of MB in wastewater. |
| first_indexed | 2024-03-10T15:06:48Z |
| format | Article |
| id | doaj.art-255a2f0b27e642a68dfc31e764737406 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T15:06:48Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-255a2f0b27e642a68dfc31e7647374062023-11-20T19:38:46ZengMDPI AGMolecules1420-30492020-11-012521510010.3390/molecules25215100Iron Molybdate Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous SolutionsAhmed Mohmoud0Souad Rakass1Hicham Oudghiri Hassani2Fethi Kooli3Mostafa Abboudi4Sami Ben Aoun5Petroleum Technology, Operated Offshore Oil Field Development, Qatar Petroleum, Doha P.O. Box 3212, QatarLaboratory of Applied Organic Chemistry (LCOA), Chemistry Department, Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University, P.O. Box 2202, Imouzzer Road, 30000 Fez, MoroccoEngineering Laboratory of Organometallic, Molecular Materials and Environment (LIMOME), Faculty of Sciences, Chemistry Department, Sidi Mohamed Ben Abdellah University, P.O. Box 1796 (Atlas), 30000 Fez, MoroccoDepartment of Chemistry, Faculty of Science, Islamic University of Madinah, Al-Madinah Al-Munawarah 42351, Saudi ArabiaDepartment of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah P.O. Box 30002, Saudi ArabiaDepartment of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah P.O. Box 30002, Saudi ArabiaThe present study investigated iron molybdate (Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub>), synthesized via a simple method, as a nanosorbent for methylene blue (MB) dye removal from aqueous solutions. Investigations of the effects of several parameters like contact time, adsorbent dose, initial dye concentration, temperature and pH were carried out. The results showed that MB removal was affected, significantly, by adsorbent dose and pH. Interestingly, lower values of adsorbent dose resulted in the removal of higher amounts of MB. At the optimum pH, the removal efficiency of 99% was gained with an initial MB concentration of ≤60 ppm. The kinetic study specified an excellent correlation of the experimental results with the pseudo-second-order kinetics model. Thermodynamic studies proved a spontaneous, favorable and endothermic removal. The maximum amount of removal capacity of MB dye was 6173 mg/g, which was determined from the Langmuir model. The removal efficiency was shown to be retained after three cycles of reuse, as proven by thermal regeneration tests. The presence and adsorption of the dye onto the Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> nanoparticle surface, as well as the regeneration of the latter, was ascertained by scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR). These findings are indicative that the investigated nanosorbent is an excellent candidate for the removal of MB in wastewater.https://www.mdpi.com/1420-3049/25/21/5100nanosorbentFe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub>removalmethylene blueregeneration |
| spellingShingle | Ahmed Mohmoud Souad Rakass Hicham Oudghiri Hassani Fethi Kooli Mostafa Abboudi Sami Ben Aoun Iron Molybdate Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions Molecules nanosorbent Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> removal methylene blue regeneration |
| title | Iron Molybdate Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions |
| title_full | Iron Molybdate Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions |
| title_fullStr | Iron Molybdate Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions |
| title_full_unstemmed | Iron Molybdate Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions |
| title_short | Iron Molybdate Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Nanoparticles: Efficient Sorbent for Methylene Blue Dye Removal from Aqueous Solutions |
| title_sort | iron molybdate fe sub 2 sub moo sub 4 sub sub 3 sub nanoparticles efficient sorbent for methylene blue dye removal from aqueous solutions |
| topic | nanosorbent Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> removal methylene blue regeneration |
| url | https://www.mdpi.com/1420-3049/25/21/5100 |
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