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Elabbasy MT, El-Morsy MA, Awwad NS, Ibrahium HA, Menazea AA. Adsorption and bacterial performance of Nd 2O 3 modified Ag nanoparticles with enhanced degradation of methylene blue. Sci Rep 2024; 14:9877. [PMID: 38684756 PMCID: PMC11059343 DOI: 10.1038/s41598-024-57226-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 03/15/2024] [Indexed: 05/02/2024] Open
Abstract
Our study focused on the optical behavior, methylene blue (MB) dye degradation potential, antibacterial performance, and silver and trioxide mineral interaction with different bacterial species. We found that the addition of silver nanoparticles (Ag NPs) to neodymium oxide (Nd2O3) resulted in a significant response, with an enlargement of the inhibition zone for bacterial species such as Staphylococcus aureus and Escherichia coli. Specifically, the inhibition zone for S. aureus increased from 9.3 ± 0.5 mm for pure Nd2O3 to 16.7 ± 0.4 mm for the Ag/Nd2O3 nano-composite, while for E. coli, it increased from 8.8 ± 0.4 mm for Nd2O3 to 15.9 ± 0.3 mm for Ag/Nd2O3. Furthermore, the optical behavior of the composites showed a clear band-gap narrowing with the addition of Ag NPs, resulting in enhanced electronic localization. The direct and indirect transitions reduced from 6.7 to 6.1 eV and from 5.2 to 2.9 eV, respectively. Overall, these results suggest that the Ag/Nd2O3 nano-composite has potential applications in sensor industries and water treatment, thanks to its enhanced optical behavior, antibacterial performance, and efficient MB degradation capabilities. In terms of MB degradation, the Ag/Nd2O3 mixed system exhibited more efficient degradation compared to pure Nd2O3. After 150 min, the MB concentration in the mixed system decreased to almost half of its starting point, while pure Nd2O3 only reached 33%.
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Affiliation(s)
| | - M A El-Morsy
- Physics Department, Plasma Technology and Material Science Unit, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, 11942, Al-Kharj, Saudi Arabia
- Physics Department, Faculty of Science, University of Damietta, New Damietta, 34517, Egypt
| | - Nasser S Awwad
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, 61413, Abha, Saudi Arabia
| | - Hala A Ibrahium
- Department of Biology, College of Science, King Khalid University, P.O. Box 9004, 61413, Abha, Saudi Arabia
| | - A A Menazea
- Spectroscopy Department, Physics Research Institute, National Research Centre, Dokki, 12622, Giza, Egypt.
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Dastider A, Saha H, Anik MJF, Jamal M, Billah MM. Second phase Cu 2O boosted photocatalytic activity of fluorine doped CuO nanoparticles. RSC Adv 2024; 14:11677-11693. [PMID: 38605896 PMCID: PMC11007595 DOI: 10.1039/d3ra08790e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/30/2024] [Indexed: 04/13/2024] Open
Abstract
The photocatalytic activity of fluorine (F) doped CuO nanoparticles (NPs) prepared employing modified sol-gel process was investigated here in this study. Structural and elemental characterization using XRD and XPS data confirmed successful incorporation of F as dopant. F doping led to lattice distortion and reduced crystallinity with smaller crystallite size while promoting the emergence of Cu2O as the second phase. Morphological analysis showed irregularly shaped, fused particles with a decreasing particle size trend upon doping. Addition of hydrogen peroxide generated hydroxyl radicals (OH˙) under ultra-violet (UV) light, which effectively degrades pollutants by facilitating the photocatalytic kinetics. Photocatalytic activity of all the nanoparticles was examined against Rhodamine B (Rh B) dye and most efficient degradation (97.78%) was observed for 3 mol% F dopant concentration. The emergence of Cu2O phase for doping beyond 1 mol% F doped CuO might be the prime reason to enhance its degradation performance. Conversely, 5 mol% doping caused notable phase changes and decreased degradation rate (88.05%) due to increased recombination rate in presence of metallic copper. The ability of F doped CuO nanoparticles to disintegrate organic contaminants by producing reactive oxygen species when exposed to UV light suggests their potential effectiveness in applications such as dye degradation, water purification, and environmental sustainability.
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Affiliation(s)
- Ankita Dastider
- Department of Materials and Metallurgical Engineering (MME), Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | - Hridoy Saha
- Department of Materials and Metallurgical Engineering (MME), Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | - Md Jannatul Ferdous Anik
- Department of Materials and Metallurgical Engineering (MME), Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | - Moniruzzaman Jamal
- Department of Materials and Metallurgical Engineering (MME), Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
- Department of Materials Science and Engineering, University of California Berkeley CA 94720 USA
| | - Md Muktadir Billah
- Department of Materials and Metallurgical Engineering (MME), Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
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Ganesh V, Ravi Kumar B, AlAbdulaal TH, Yahia IS, Abdel-wahab MS, Ade R, Hussien MSA, Keshway M. Electrocatalytic Degradation of Rhodamine B Using Li-Doped ZnO Nanoparticles: Novel Approach. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1177. [PMID: 36770186 PMCID: PMC9920269 DOI: 10.3390/ma16031177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/08/2023] [Accepted: 01/11/2023] [Indexed: 06/18/2023]
Abstract
In this paper, we discuss the preparation of Li-doped ZnO nanostructures through combustion and report on their structural, morphological, optical, and electrocatalysis properties. X-ray diffraction analyses show that the samples have a structure crystallized into the usual hexagonal wurtzite ZnO structure according to the P63mc space group. The scanning electron microscope images conceal all samples' nanosphere bundles and aggregates. The reflectance spectra analysis showed that the direct bandgap values varied from 3.273 eV (for pure ZnO, i.e., ZnL1) to 3.256 eV (for high Li-doped ZnO). The measured capacitance concerning frequency has estimated the variation of dielectric constant, dielectric loss, and AC conductivity against AC electric field frequency. The dielectric constant variations and AC conductivity are analyzed and discussed by well-known models such as Koop's phenomenological theory and Jonscher's law. The Raman spectra have been recorded and examined for the prepared samples. Rhodamine B was electro-catalytically degraded in all prepared samples, with the fastest time for ZnL5 being 3 min.
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Affiliation(s)
- Vanga Ganesh
- Laboratory of Nano-Smart Materials for Science and Technology (LNSMST), Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 62529, Saudi Arabia
| | | | - Thekrayat. H. AlAbdulaal
- Laboratory of Nano-Smart Materials for Science and Technology (LNSMST), Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 62529, Saudi Arabia
| | - Ibrahim. S. Yahia
- Laboratory of Nano-Smart Materials for Science and Technology (LNSMST), Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 62529, Saudi Arabia
- Nanoscience Laboratory for Environmental and Bio-Medical Applications (NLEBA), Metallurgical Lab.1., Department of Physics, Faculty of Education, Ain Shams University, Roxy, Cairo 11757, Egypt
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Mohamed Sh. Abdel-wahab
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni–Suef University, Beni–Suef 62511, Egypt
| | - Ramesh Ade
- Department of Physics, Koneru Lakshmaiah Education Foundation, R V S Nagar, Aziz Nagar (P.O.), Moinabad Road, Hyderabad 500075, India
| | - Mai S. A. Hussien
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11757, Egypt
| | - Mohamed Keshway
- Egyptian Petroleum Research Institute, 1 Ahmed El-Zomor Street, Nasr City 11727, Egypt
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