Taguchi L25 (5<sup>4</sup>) Approach for Methylene Blue Removal by Polyethylene Terephthalate Nanofiber-Multi-Walled Carbon Nanotube Composite
A membrane composed of polyethylene terephthalate nanofiber and multi-walled carbon nanotubes (PET NF-MWCNTs) composite is used to adsorb methylene blue (MB) dye from an aqueous solution. Scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction techniques are empl...
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MDPI AG
2022-04-01
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| author | Wafa K. Essa Suhad A. Yasin Anwar H. Abdullah Mohammad R. Thalji Ibtisam A. Saeed Mohammed A. Assiri Kwok Feng Chong Gomaa A. M. Ali |
| author_facet | Wafa K. Essa Suhad A. Yasin Anwar H. Abdullah Mohammad R. Thalji Ibtisam A. Saeed Mohammed A. Assiri Kwok Feng Chong Gomaa A. M. Ali |
| author_sort | Wafa K. Essa |
| collection | DOAJ |
| description | A membrane composed of polyethylene terephthalate nanofiber and multi-walled carbon nanotubes (PET NF-MWCNTs) composite is used to adsorb methylene blue (MB) dye from an aqueous solution. Scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction techniques are employed to study the surface properties of the adsorbent. Several parameters affecting dye adsorption (pH, MB dye initial concentration, PET NF-MWCNTs dose, and contact time) are optimized for optimal removal efficiency (R, %) by using the Taguchi L25 (5<sup>4</sup>) Orthogonal Array approach. According to the ANOVA results, pH has the highest contributing percentage at 71.01%, suggesting it has the most significant impact on removal efficiency. The adsorbent dose is the second most affected (12.08%), followed by the MB dye initial concentration of 5.91%, and the least affected is the contact time (1.81%). In addition, experimental findings confirm that the Langmuir isotherm is well-fitted, suggesting a monolayer capping of MB dye on the PET-NF-MWCNT surface with a maximum adsorption capacity of 7.047 mg g<sup>−1</sup>. Also, the kinetic results are well-suited to the pseudo-second-order model. There is a good agreement between the calculated (<i>q<sub>e</sub></i>) and experimental values for the pseudo-second-order kinetic model. |
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| last_indexed | 2024-03-09T12:51:32Z |
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| series | Water |
| spelling | doaj.art-00dafcb4d06044e0bc88c8cdb53100d12023-11-30T22:04:56ZengMDPI AGWater2073-44412022-04-01148124210.3390/w14081242Taguchi L25 (5<sup>4</sup>) Approach for Methylene Blue Removal by Polyethylene Terephthalate Nanofiber-Multi-Walled Carbon Nanotube CompositeWafa K. Essa0Suhad A. Yasin1Anwar H. Abdullah2Mohammad R. Thalji3Ibtisam A. Saeed4Mohammed A. Assiri5Kwok Feng Chong6Gomaa A. M. Ali7College of Science, University of Duhok, Duhok 42001, IraqCollege of Science, University of Duhok, Duhok 42001, IraqCollege of Science, University of Duhok, Duhok 42001, IraqIndependent Researcher, Amman P.O. Box 26110, JordanCollege of Science, University of Duhok, Duhok 42001, IraqResearch Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 80203, Abha 61413, Saudi ArabiaFaculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Gambang, Kuantan 26300, MalaysiaChemistry Department, Faculty of Science, Al–Azhar University, Assiut 71524, EgyptA membrane composed of polyethylene terephthalate nanofiber and multi-walled carbon nanotubes (PET NF-MWCNTs) composite is used to adsorb methylene blue (MB) dye from an aqueous solution. Scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction techniques are employed to study the surface properties of the adsorbent. Several parameters affecting dye adsorption (pH, MB dye initial concentration, PET NF-MWCNTs dose, and contact time) are optimized for optimal removal efficiency (R, %) by using the Taguchi L25 (5<sup>4</sup>) Orthogonal Array approach. According to the ANOVA results, pH has the highest contributing percentage at 71.01%, suggesting it has the most significant impact on removal efficiency. The adsorbent dose is the second most affected (12.08%), followed by the MB dye initial concentration of 5.91%, and the least affected is the contact time (1.81%). In addition, experimental findings confirm that the Langmuir isotherm is well-fitted, suggesting a monolayer capping of MB dye on the PET-NF-MWCNT surface with a maximum adsorption capacity of 7.047 mg g<sup>−1</sup>. Also, the kinetic results are well-suited to the pseudo-second-order model. There is a good agreement between the calculated (<i>q<sub>e</sub></i>) and experimental values for the pseudo-second-order kinetic model.https://www.mdpi.com/2073-4441/14/8/1242taguchi approachANOVAnanofibersmethylene blueadsorptionremoval efficiency |
| spellingShingle | Wafa K. Essa Suhad A. Yasin Anwar H. Abdullah Mohammad R. Thalji Ibtisam A. Saeed Mohammed A. Assiri Kwok Feng Chong Gomaa A. M. Ali Taguchi L25 (5<sup>4</sup>) Approach for Methylene Blue Removal by Polyethylene Terephthalate Nanofiber-Multi-Walled Carbon Nanotube Composite Water taguchi approach ANOVA nanofibers methylene blue adsorption removal efficiency |
| title | Taguchi L25 (5<sup>4</sup>) Approach for Methylene Blue Removal by Polyethylene Terephthalate Nanofiber-Multi-Walled Carbon Nanotube Composite |
| title_full | Taguchi L25 (5<sup>4</sup>) Approach for Methylene Blue Removal by Polyethylene Terephthalate Nanofiber-Multi-Walled Carbon Nanotube Composite |
| title_fullStr | Taguchi L25 (5<sup>4</sup>) Approach for Methylene Blue Removal by Polyethylene Terephthalate Nanofiber-Multi-Walled Carbon Nanotube Composite |
| title_full_unstemmed | Taguchi L25 (5<sup>4</sup>) Approach for Methylene Blue Removal by Polyethylene Terephthalate Nanofiber-Multi-Walled Carbon Nanotube Composite |
| title_short | Taguchi L25 (5<sup>4</sup>) Approach for Methylene Blue Removal by Polyethylene Terephthalate Nanofiber-Multi-Walled Carbon Nanotube Composite |
| title_sort | taguchi l25 5 sup 4 sup approach for methylene blue removal by polyethylene terephthalate nanofiber multi walled carbon nanotube composite |
| topic | taguchi approach ANOVA nanofibers methylene blue adsorption removal efficiency |
| url | https://www.mdpi.com/2073-4441/14/8/1242 |
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