Properties and application of MoS2 nanopowder: Characterization, Congo red dye adsorption, and optimization
The properties of natural crystalline molybdenum disulfide (MoS2) nanopowder were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, transmission electron microscopy, selected area electron diffraction, scanning electron microscopy, energy-...
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doaj-7c295448bef7448581c90fda010e6bfe2021-07-23T04:49:20ZengElsevierJournal of Materials Research and Technology2238-78542021-07-011311691180Properties and application of MoS2 nanopowder: Characterization, Congo red dye adsorption, and optimizationIbrahim M. Alarifi0Youssef O. Al-Ghamdi1Reem Darwesh2Mohammad Omaish Ansari3Mohammad Kashif Uddin4Department of Mechanical and Industrial Engineering, Majmaah University, Al-Majmaah, 11952, Saudi ArabiaDepartment of Chemistry, College of Science, Al-Zulfi Campus, Majmaah University, Al-Majmaah, 11952, Saudi ArabiaDepartment of Physics, King Abdulaziz University, Jeddah, 21589, Saudi ArabiaCenter of Nanotechnology, King Abdulaziz University, Jeddah, 21589, Saudi ArabiaDepartment of Chemistry, College of Science, Al-Zulfi Campus, Majmaah University, Al-Majmaah, 11952, Saudi Arabia; Corresponding author.The properties of natural crystalline molybdenum disulfide (MoS2) nanopowder were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, transmission electron microscopy, selected area electron diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and elemental mapping. In addition, the Congo red (CR) dye (adsorbate)-MoS2 (adsorbent) relationship was investigated. Moreover, the influence of significant factors including pH, temperature, concentration, and time on the adsorption performance of MoS2 nanopowder was investigated. The MoS2 nanopowder exhibited excellent decolorization property. The adsorption isotherm data were best fitted with the Langmuir model, and the calculated maximum adsorption capacity was 80.64 mg/g at 50 °C. In addition, the pseudo-second-order model well-fitted the adsorption kinetics data. The adsorption was a physical process involving electrostatic attraction and the optimum conditions for CR adsorption were determined by the Taguchi method. The reusability test results proved that MoS2 is economical and can be efficiently employed for environmental remediation.http://www.sciencedirect.com/science/article/pii/S2238785421004683Molybdenum disulfideNanopowderCongo RedCharacterizationApplication |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ibrahim M. Alarifi Youssef O. Al-Ghamdi Reem Darwesh Mohammad Omaish Ansari Mohammad Kashif Uddin |
spellingShingle |
Ibrahim M. Alarifi Youssef O. Al-Ghamdi Reem Darwesh Mohammad Omaish Ansari Mohammad Kashif Uddin Properties and application of MoS2 nanopowder: Characterization, Congo red dye adsorption, and optimization Journal of Materials Research and Technology Molybdenum disulfide Nanopowder Congo Red Characterization Application |
author_facet |
Ibrahim M. Alarifi Youssef O. Al-Ghamdi Reem Darwesh Mohammad Omaish Ansari Mohammad Kashif Uddin |
author_sort |
Ibrahim M. Alarifi |
title |
Properties and application of MoS2 nanopowder: Characterization, Congo red dye adsorption, and optimization |
title_short |
Properties and application of MoS2 nanopowder: Characterization, Congo red dye adsorption, and optimization |
title_full |
Properties and application of MoS2 nanopowder: Characterization, Congo red dye adsorption, and optimization |
title_fullStr |
Properties and application of MoS2 nanopowder: Characterization, Congo red dye adsorption, and optimization |
title_full_unstemmed |
Properties and application of MoS2 nanopowder: Characterization, Congo red dye adsorption, and optimization |
title_sort |
properties and application of mos2 nanopowder: characterization, congo red dye adsorption, and optimization |
publisher |
Elsevier |
series |
Journal of Materials Research and Technology |
issn |
2238-7854 |
publishDate |
2021-07-01 |
description |
The properties of natural crystalline molybdenum disulfide (MoS2) nanopowder were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, transmission electron microscopy, selected area electron diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and elemental mapping. In addition, the Congo red (CR) dye (adsorbate)-MoS2 (adsorbent) relationship was investigated. Moreover, the influence of significant factors including pH, temperature, concentration, and time on the adsorption performance of MoS2 nanopowder was investigated. The MoS2 nanopowder exhibited excellent decolorization property. The adsorption isotherm data were best fitted with the Langmuir model, and the calculated maximum adsorption capacity was 80.64 mg/g at 50 °C. In addition, the pseudo-second-order model well-fitted the adsorption kinetics data. The adsorption was a physical process involving electrostatic attraction and the optimum conditions for CR adsorption were determined by the Taguchi method. The reusability test results proved that MoS2 is economical and can be efficiently employed for environmental remediation. |
topic |
Molybdenum disulfide Nanopowder Congo Red Characterization Application |
url |
http://www.sciencedirect.com/science/article/pii/S2238785421004683 |
work_keys_str_mv |
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