Highly Efficient Methylene Blue Dye Removal by Nickel Molybdate Nanosorbent
Removing methylene blue (MB) dye from aqueous solutions was examined by the use of nickel molybdate (α-NiMoO<sub>4</sub>) as an adsorbent produced by an uncomplicated, rapid, and cost-effective method. Different results were produced by varying different parameters such as the pH, the ad...
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doaj-4a0db013fbf346c59ff03c1adc5258602021-03-05T00:04:30ZengMDPI AGMolecules1420-30492021-03-01261378137810.3390/molecules26051378Highly Efficient Methylene Blue Dye Removal by Nickel Molybdate NanosorbentSouad Rakass0Hicham Oudghiri Hassani1Ahmed Mohmoud2Fethi Kooli3Mostafa Abboudi4Eman Assirey5Fahd Al Wadaani6Laboratory of Applied Organic Chemistry (LCOA), Chemistry Department, Faculty of Sciences and Techniques, Sidi Mohamed Ben Abdellah University, Po. 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, Po. Box 1796 (Atlas), 30000 Fez, MoroccoPetroleum Technology, Operated Offshore Oil Field Development, Qatar Petroleum, Doha P.O. Box 3212, QatarDepartment of Chemistry, Faculty of Science, Islamic University of Madinah, Al-Madinah Al-Munawwarah 42351, Saudi ArabiaChemistry Department, College of Science, Taibah University, Al-Madinah Al-Munawwarah 30002, Saudi ArabiaChemistry Department, College of Science, Taibah University, Al-Madinah Al-Munawwarah 30002, Saudi ArabiaChemistry Department, College of Science, Taibah University, Al-Madinah Al-Munawwarah 30002, Saudi ArabiaRemoving methylene blue (MB) dye from aqueous solutions was examined by the use of nickel molybdate (α-NiMoO<sub>4</sub>) as an adsorbent produced by an uncomplicated, rapid, and cost-effective method. Different results were produced by varying different parameters such as the pH, the adsorbent dose, the temperature, the contact time, and the initial dye concentration. Adsorbent dose and pH had a major removal effect on MB. Interestingly, a lower amount of adsorbent dose caused greater MB removal. The amount of removal gained was efficient and reached a 99% level with an initial methylene blue solution concentration of ≤160 ppm at pH 11. The kinetic studies indicated that the pseudo-second-order kinetic model relates very well with that of the obtained experimental results. The thermodynamic studies showed that removing the MB dye was favorable, spontaneous, and endothermic. Impressively, the highest quantity of removal amount of MB dye was 16,863 mg/g, as shown by the Langmuir model. The thermal regeneration tests revealed that the efficiency of removing MB (11,608 mg/g) was retained following three continuous rounds of recycled adsorbents. Adsorption of MB onto α-NiMoO<sub>4 </sub>nanoparticles and its regeneration were confirmed by Fourier transform infrared spectroscopy (FTIR) analysis and scanning electron microscopy (SEM) analysis. The results indicated that α-NiMoO<sub>4 </sub>nanosorbent is an outstanding and strong candidate that can be used for removing the maximum capacity of MB dye in wastewater.https://www.mdpi.com/1420-3049/26/5/1378nanosorbentregenerationα-NiMoO<sub>4</sub>methylene blueremoval |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Souad Rakass Hicham Oudghiri Hassani Ahmed Mohmoud Fethi Kooli Mostafa Abboudi Eman Assirey Fahd Al Wadaani |
spellingShingle |
Souad Rakass Hicham Oudghiri Hassani Ahmed Mohmoud Fethi Kooli Mostafa Abboudi Eman Assirey Fahd Al Wadaani Highly Efficient Methylene Blue Dye Removal by Nickel Molybdate Nanosorbent Molecules nanosorbent regeneration α-NiMoO<sub>4</sub> methylene blue removal |
author_facet |
Souad Rakass Hicham Oudghiri Hassani Ahmed Mohmoud Fethi Kooli Mostafa Abboudi Eman Assirey Fahd Al Wadaani |
author_sort |
Souad Rakass |
title |
Highly Efficient Methylene Blue Dye Removal by Nickel Molybdate Nanosorbent |
title_short |
Highly Efficient Methylene Blue Dye Removal by Nickel Molybdate Nanosorbent |
title_full |
Highly Efficient Methylene Blue Dye Removal by Nickel Molybdate Nanosorbent |
title_fullStr |
Highly Efficient Methylene Blue Dye Removal by Nickel Molybdate Nanosorbent |
title_full_unstemmed |
Highly Efficient Methylene Blue Dye Removal by Nickel Molybdate Nanosorbent |
title_sort |
highly efficient methylene blue dye removal by nickel molybdate nanosorbent |
publisher |
MDPI AG |
series |
Molecules |
issn |
1420-3049 |
publishDate |
2021-03-01 |
description |
Removing methylene blue (MB) dye from aqueous solutions was examined by the use of nickel molybdate (α-NiMoO<sub>4</sub>) as an adsorbent produced by an uncomplicated, rapid, and cost-effective method. Different results were produced by varying different parameters such as the pH, the adsorbent dose, the temperature, the contact time, and the initial dye concentration. Adsorbent dose and pH had a major removal effect on MB. Interestingly, a lower amount of adsorbent dose caused greater MB removal. The amount of removal gained was efficient and reached a 99% level with an initial methylene blue solution concentration of ≤160 ppm at pH 11. The kinetic studies indicated that the pseudo-second-order kinetic model relates very well with that of the obtained experimental results. The thermodynamic studies showed that removing the MB dye was favorable, spontaneous, and endothermic. Impressively, the highest quantity of removal amount of MB dye was 16,863 mg/g, as shown by the Langmuir model. The thermal regeneration tests revealed that the efficiency of removing MB (11,608 mg/g) was retained following three continuous rounds of recycled adsorbents. Adsorption of MB onto α-NiMoO<sub>4 </sub>nanoparticles and its regeneration were confirmed by Fourier transform infrared spectroscopy (FTIR) analysis and scanning electron microscopy (SEM) analysis. The results indicated that α-NiMoO<sub>4 </sub>nanosorbent is an outstanding and strong candidate that can be used for removing the maximum capacity of MB dye in wastewater. |
topic |
nanosorbent regeneration α-NiMoO<sub>4</sub> methylene blue removal |
url |
https://www.mdpi.com/1420-3049/26/5/1378 |
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