Cargando…
Enhanced photocatalytic activity of Cu and Ni-doped ZnO nanostructures: A comparative study of methyl orange dye degradation in aqueous solution
Heterogeneous photocatalysis has been considered one of the most effective and efficient techniques to remove organic contaminants from wastewater. The present work was designed to examine the photocatalytic performance of metal (Cu and Ni) doped ZnO nanocomposites in methyl orange (MO) dye degradat...
Autores principales: | , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10360600/ https://www.ncbi.nlm.nih.gov/pubmed/37484277 http://dx.doi.org/10.1016/j.heliyon.2023.e16506 |
_version_ | 1785076114755944448 |
---|---|
author | Al-Mamun, Md. Rashid Iqbal Rokon, Md. Zaveed Rahim, Md. Abdur Hossain, Md. Ikram Islam, Md. Shahinoor Ali, Md. Romzan Bacchu, Md Sadek Waizumi, Hiroki Komeda, Tadahiro Hossain Khan, Md Zaved |
author_facet | Al-Mamun, Md. Rashid Iqbal Rokon, Md. Zaveed Rahim, Md. Abdur Hossain, Md. Ikram Islam, Md. Shahinoor Ali, Md. Romzan Bacchu, Md Sadek Waizumi, Hiroki Komeda, Tadahiro Hossain Khan, Md Zaved |
author_sort | Al-Mamun, Md. Rashid |
collection | PubMed |
description | Heterogeneous photocatalysis has been considered one of the most effective and efficient techniques to remove organic contaminants from wastewater. The present work was designed to examine the photocatalytic performance of metal (Cu and Ni) doped ZnO nanocomposites in methyl orange (MO) dye degradation under UV light illumination. The wurtzite hexagonal structure was observed for both undoped/doped ZnO and a crystalline size ranging between 8.84 ± 0.71 to 12.91 ± 0.84 nm by X-ray diffraction (XRD) analysis. The scanning electron microscope (SEM) and energy dispersive X-ray (EDX) revealed the irregular spherical shape with particle diameter (34.43 ± 6.03 to 26.43 ± 4.14 nm) and ensured the purity of the individual elemental composition respectively. The chemical bonds (O–H group) and binding energy (1021.8 eV) were identified by Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) results respectively. The bandgap energy was decreased from 3.44 to 3.16 eV when Ni dopant was added to the ZnO lattice. The comparative photocatalytic activity was observed in undoped and doped nanocomposites and found to be 76.31%, 81.95%, 89.30%, and 83.39% for ZnO, Cu/ZnO, Ni/ZnO, and Cu/Ni/ZnO photocatalysts, respectively, for a particular dose (0.210 g) and dye concentration (10 mg L(−1)) after 180 min illumination of UV light. The photocatalytic performance was increased up to 94.40% with the increase of pH (12.0) whereas reduced (35.12%) with an increase in initial dye concentration (40 mg L(−1)) using Ni/ZnO nanocomposite. The Ni/ZnO nanocomposite showed excellent reusability and was found 81% after four consecutive cycles. The best-fitted reaction kinetics was followed by pseudo-first-order and found reaction rate constant (0.0117 min(−1)) using Ni/ZnO nanocomposite. The enhanced photodegradation efficiency was observed due to decreases in bandgap energy and the crystalline size of the photocatalyst. Therefore, Ni/ZnO nanocomposite could be used as an emerging photocatalyst to degrade bio-persistent organic dye compounds from textile wastewater. |
format | Online Article Text |
id | pubmed-10360600 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-103606002023-07-22 Enhanced photocatalytic activity of Cu and Ni-doped ZnO nanostructures: A comparative study of methyl orange dye degradation in aqueous solution Al-Mamun, Md. Rashid Iqbal Rokon, Md. Zaveed Rahim, Md. Abdur Hossain, Md. Ikram Islam, Md. Shahinoor Ali, Md. Romzan Bacchu, Md Sadek Waizumi, Hiroki Komeda, Tadahiro Hossain Khan, Md Zaved Heliyon Research Article Heterogeneous photocatalysis has been considered one of the most effective and efficient techniques to remove organic contaminants from wastewater. The present work was designed to examine the photocatalytic performance of metal (Cu and Ni) doped ZnO nanocomposites in methyl orange (MO) dye degradation under UV light illumination. The wurtzite hexagonal structure was observed for both undoped/doped ZnO and a crystalline size ranging between 8.84 ± 0.71 to 12.91 ± 0.84 nm by X-ray diffraction (XRD) analysis. The scanning electron microscope (SEM) and energy dispersive X-ray (EDX) revealed the irregular spherical shape with particle diameter (34.43 ± 6.03 to 26.43 ± 4.14 nm) and ensured the purity of the individual elemental composition respectively. The chemical bonds (O–H group) and binding energy (1021.8 eV) were identified by Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) results respectively. The bandgap energy was decreased from 3.44 to 3.16 eV when Ni dopant was added to the ZnO lattice. The comparative photocatalytic activity was observed in undoped and doped nanocomposites and found to be 76.31%, 81.95%, 89.30%, and 83.39% for ZnO, Cu/ZnO, Ni/ZnO, and Cu/Ni/ZnO photocatalysts, respectively, for a particular dose (0.210 g) and dye concentration (10 mg L(−1)) after 180 min illumination of UV light. The photocatalytic performance was increased up to 94.40% with the increase of pH (12.0) whereas reduced (35.12%) with an increase in initial dye concentration (40 mg L(−1)) using Ni/ZnO nanocomposite. The Ni/ZnO nanocomposite showed excellent reusability and was found 81% after four consecutive cycles. The best-fitted reaction kinetics was followed by pseudo-first-order and found reaction rate constant (0.0117 min(−1)) using Ni/ZnO nanocomposite. The enhanced photodegradation efficiency was observed due to decreases in bandgap energy and the crystalline size of the photocatalyst. Therefore, Ni/ZnO nanocomposite could be used as an emerging photocatalyst to degrade bio-persistent organic dye compounds from textile wastewater. Elsevier 2023-05-22 /pmc/articles/PMC10360600/ /pubmed/37484277 http://dx.doi.org/10.1016/j.heliyon.2023.e16506 Text en © 2023 The Authors https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Research Article Al-Mamun, Md. Rashid Iqbal Rokon, Md. Zaveed Rahim, Md. Abdur Hossain, Md. Ikram Islam, Md. Shahinoor Ali, Md. Romzan Bacchu, Md Sadek Waizumi, Hiroki Komeda, Tadahiro Hossain Khan, Md Zaved Enhanced photocatalytic activity of Cu and Ni-doped ZnO nanostructures: A comparative study of methyl orange dye degradation in aqueous solution |
title | Enhanced photocatalytic activity of Cu and Ni-doped ZnO nanostructures: A comparative study of methyl orange dye degradation in aqueous solution |
title_full | Enhanced photocatalytic activity of Cu and Ni-doped ZnO nanostructures: A comparative study of methyl orange dye degradation in aqueous solution |
title_fullStr | Enhanced photocatalytic activity of Cu and Ni-doped ZnO nanostructures: A comparative study of methyl orange dye degradation in aqueous solution |
title_full_unstemmed | Enhanced photocatalytic activity of Cu and Ni-doped ZnO nanostructures: A comparative study of methyl orange dye degradation in aqueous solution |
title_short | Enhanced photocatalytic activity of Cu and Ni-doped ZnO nanostructures: A comparative study of methyl orange dye degradation in aqueous solution |
title_sort | enhanced photocatalytic activity of cu and ni-doped zno nanostructures: a comparative study of methyl orange dye degradation in aqueous solution |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10360600/ https://www.ncbi.nlm.nih.gov/pubmed/37484277 http://dx.doi.org/10.1016/j.heliyon.2023.e16506 |
work_keys_str_mv | AT almamunmdrashid enhancedphotocatalyticactivityofcuandnidopedznonanostructuresacomparativestudyofmethylorangedyedegradationinaqueoussolution AT iqbalrokonmdzaveed enhancedphotocatalyticactivityofcuandnidopedznonanostructuresacomparativestudyofmethylorangedyedegradationinaqueoussolution AT rahimmdabdur enhancedphotocatalyticactivityofcuandnidopedznonanostructuresacomparativestudyofmethylorangedyedegradationinaqueoussolution AT hossainmdikram enhancedphotocatalyticactivityofcuandnidopedznonanostructuresacomparativestudyofmethylorangedyedegradationinaqueoussolution AT islammdshahinoor enhancedphotocatalyticactivityofcuandnidopedznonanostructuresacomparativestudyofmethylorangedyedegradationinaqueoussolution AT alimdromzan enhancedphotocatalyticactivityofcuandnidopedznonanostructuresacomparativestudyofmethylorangedyedegradationinaqueoussolution AT bacchumdsadek enhancedphotocatalyticactivityofcuandnidopedznonanostructuresacomparativestudyofmethylorangedyedegradationinaqueoussolution AT waizumihiroki enhancedphotocatalyticactivityofcuandnidopedznonanostructuresacomparativestudyofmethylorangedyedegradationinaqueoussolution AT komedatadahiro enhancedphotocatalyticactivityofcuandnidopedznonanostructuresacomparativestudyofmethylorangedyedegradationinaqueoussolution AT hossainkhanmdzaved enhancedphotocatalyticactivityofcuandnidopedznonanostructuresacomparativestudyofmethylorangedyedegradationinaqueoussolution |