Synthesis, characterization, and photocatalytic application of silver doped zinc oxide nanoparticles
The advancement in nanotechnology has influenced the improvement in the photocatalytic performance of zinc oxide nanoparticles (ZnO NPs). The photocatalytic activities of ZnO are within irradiation wavelengths in the ultraviolet region and this hinders its efficiency in photocatalytic applications....
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-03-01
|
| Series: | Cleaner Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772397622000016 |
| _version_ | 1818283524215537664 |
|---|---|
| author | M.A. Kareem I.T. Bello H.A. Shittu P. Sivaprakash O. Adedokun S. Arumugam |
| author_facet | M.A. Kareem I.T. Bello H.A. Shittu P. Sivaprakash O. Adedokun S. Arumugam |
| author_sort | M.A. Kareem |
| collection | DOAJ |
| description | The advancement in nanotechnology has influenced the improvement in the photocatalytic performance of zinc oxide nanoparticles (ZnO NPs). The photocatalytic activities of ZnO are within irradiation wavelengths in the ultraviolet region and this hinders its efficiency in photocatalytic applications. Undoped and silver doped ZnO nanoparticles (Ag-doped ZnO NPs) were successfully prepared by co-precipitation technique at Ag doping concentrations of 0, 0.25, 0.5, 0.75, and 1 % to enhance the photocatalytic ability of ZnO NPs. The XRD results indicate a hexagonal wurtzite structure of the undoped and Ag-doped ZnO NPs with the estimated crystalline size ranges from 30.79, 23.72, 36.97, 21.49, and 25.66 nm, respectively, for ZnO at Ag doping concentrations. The SEM micrograph revealed the uniform distribution of Ag on the surface of ZnO NPs and a decrease in the size of the particle as concentration increases. The displacement in the absorption edge of ZnO to a higher wavelength led to narrowing the optical bandgap of ZnO due to Ag doping, as observed in the DRS spectra. Photocatalytic performance and photodegradation experiments were conducted using a model methylene blue (MB) dye contaminated in water. The dye concentration decreases as irradiation time increases in the presence of the photocatalyst with the improved performance of less exposure time and the highest dye degradation of about 98 %. It was revealed that the photocatalytic activity of ZnO toward MB degradation was effectively improved by Ag doping. Therefore, Ag doping of ZnO NPs had the synergetic effect of enhancing the photocatalytic activity of ZnO NPs. |
| first_indexed | 2024-12-13T00:38:16Z |
| format | Article |
| id | doaj.art-068d6f5b32894d51b8d0b3812792018e |
| institution | Directory Open Access Journal |
| issn | 2772-3976 |
| language | English |
| last_indexed | 2024-12-13T00:38:16Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Cleaner Materials |
| spelling | doaj.art-068d6f5b32894d51b8d0b3812792018e2022-12-22T00:05:11ZengElsevierCleaner Materials2772-39762022-03-013100041Synthesis, characterization, and photocatalytic application of silver doped zinc oxide nanoparticlesM.A. Kareem0I.T. Bello1H.A. Shittu2P. Sivaprakash3O. Adedokun4S. Arumugam5Department of Pure and Applied Physics, Ladoke Akintola University of Technology, Ogbomoso, NigeriaDepartment of Pure and Applied Physics, Ladoke Akintola University of Technology, Ogbomoso, Nigeria; Department of Physics, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1710, South Africa; Corresponding authors at: Department of Pure and Applied Physics, Ladoke Akintola University of Technology, Ogbomoso, Nigeria.Department of Pure and Applied Physics, Ladoke Akintola University of Technology, Ogbomoso, NigeriaCentre for High Pressure Research, School of Physics, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, IndiaDepartment of Pure and Applied Physics, Ladoke Akintola University of Technology, Ogbomoso, Nigeria; Nanotechnology Research Group (NANO+), Ladoke Akintola University of Technology, Ogbomoso, Nigeria; Corresponding authors at: Department of Pure and Applied Physics, Ladoke Akintola University of Technology, Ogbomoso, Nigeria.Centre for High Pressure Research, School of Physics, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, IndiaThe advancement in nanotechnology has influenced the improvement in the photocatalytic performance of zinc oxide nanoparticles (ZnO NPs). The photocatalytic activities of ZnO are within irradiation wavelengths in the ultraviolet region and this hinders its efficiency in photocatalytic applications. Undoped and silver doped ZnO nanoparticles (Ag-doped ZnO NPs) were successfully prepared by co-precipitation technique at Ag doping concentrations of 0, 0.25, 0.5, 0.75, and 1 % to enhance the photocatalytic ability of ZnO NPs. The XRD results indicate a hexagonal wurtzite structure of the undoped and Ag-doped ZnO NPs with the estimated crystalline size ranges from 30.79, 23.72, 36.97, 21.49, and 25.66 nm, respectively, for ZnO at Ag doping concentrations. The SEM micrograph revealed the uniform distribution of Ag on the surface of ZnO NPs and a decrease in the size of the particle as concentration increases. The displacement in the absorption edge of ZnO to a higher wavelength led to narrowing the optical bandgap of ZnO due to Ag doping, as observed in the DRS spectra. Photocatalytic performance and photodegradation experiments were conducted using a model methylene blue (MB) dye contaminated in water. The dye concentration decreases as irradiation time increases in the presence of the photocatalyst with the improved performance of less exposure time and the highest dye degradation of about 98 %. It was revealed that the photocatalytic activity of ZnO toward MB degradation was effectively improved by Ag doping. Therefore, Ag doping of ZnO NPs had the synergetic effect of enhancing the photocatalytic activity of ZnO NPs.http://www.sciencedirect.com/science/article/pii/S2772397622000016SilverZinc oxide nanoparticlesDopingCo-precipitationPhotocatalysisBandgap |
| spellingShingle | M.A. Kareem I.T. Bello H.A. Shittu P. Sivaprakash O. Adedokun S. Arumugam Synthesis, characterization, and photocatalytic application of silver doped zinc oxide nanoparticles Cleaner Materials Silver Zinc oxide nanoparticles Doping Co-precipitation Photocatalysis Bandgap |
| title | Synthesis, characterization, and photocatalytic application of silver doped zinc oxide nanoparticles |
| title_full | Synthesis, characterization, and photocatalytic application of silver doped zinc oxide nanoparticles |
| title_fullStr | Synthesis, characterization, and photocatalytic application of silver doped zinc oxide nanoparticles |
| title_full_unstemmed | Synthesis, characterization, and photocatalytic application of silver doped zinc oxide nanoparticles |
| title_short | Synthesis, characterization, and photocatalytic application of silver doped zinc oxide nanoparticles |
| title_sort | synthesis characterization and photocatalytic application of silver doped zinc oxide nanoparticles |
| topic | Silver Zinc oxide nanoparticles Doping Co-precipitation Photocatalysis Bandgap |
| url | http://www.sciencedirect.com/science/article/pii/S2772397622000016 |
| work_keys_str_mv | AT makareem synthesischaracterizationandphotocatalyticapplicationofsilverdopedzincoxidenanoparticles AT itbello synthesischaracterizationandphotocatalyticapplicationofsilverdopedzincoxidenanoparticles AT hashittu synthesischaracterizationandphotocatalyticapplicationofsilverdopedzincoxidenanoparticles AT psivaprakash synthesischaracterizationandphotocatalyticapplicationofsilverdopedzincoxidenanoparticles AT oadedokun synthesischaracterizationandphotocatalyticapplicationofsilverdopedzincoxidenanoparticles AT sarumugam synthesischaracterizationandphotocatalyticapplicationofsilverdopedzincoxidenanoparticles |