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Al-Mushki AAA, Ahmed AAA, Abdulwahab AM, Qaid SAS, Alzayed NS, Shahabuddin M, Abduljalil JMA, Saad FAA. Effect of the molar ratio of (Ni 2+ and Fe 3+) on the magnetic, optical and antibacterial properties of ternary metal oxide CdO-NiO-Fe 2O 3 nanocomposites. Sci Rep 2023; 13:9021. [PMID: 37270550 DOI: 10.1038/s41598-023-36262-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023] Open
Abstract
In this work, the effect of the molar ratio of (Ni2+ and Fe3+) on the properties of CdO-NiO-Fe2O3 nanocomposites was investigated. The synthesis of CdO-NiO-Fe2O3 nanocomposites was carried out by self-combustion. XRD, UV-Vis, PL and VSM were used to describe the physical properties of the materials. The results showed significant progress in structural and optical properties supporting antibacterial activity. For all samples, the particle size decreased from 28.96 to 24.95 nm with increasing Ni2+ content and decreasing Fe3+ content, as shown by the XRD pattern, which also shows the crystal structure of cubic CdO, cubic NiO, and cubic γ-Fe2O3 spinel. The Ni2+ and Fe3+ contents in the CdO-NiO-Fe2O3 nanocomposites have also been shown to enhance the ferromagnetic properties. Due to the significant coupling between Fe2O3 and NiO, the coercivity Hc values of the samples increase from 66.4 to 266 Oe. The potential of the nanocomposites for antibacterial activity was investigated against Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa, Escherichia coli, and Moraxella catarrhalis) bacteria. Comparison of P. aeruginosa with E. coli, S. aureus and M. catarrhalis showed that it has a stronger antibacterial activity with a ZOI of 25 mm.
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Affiliation(s)
- Asma A A Al-Mushki
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
| | - Abdullah A A Ahmed
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen.
| | - A M Abdulwahab
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
| | - Salem A S Qaid
- Department of Physics, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Nasser S Alzayed
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mohammed Shahabuddin
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
| | - Jameel M A Abduljalil
- Department of Biology, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
| | - Fuad A A Saad
- Department of Biology, Faculty of Applied Science, Thamar University, 87246, Dhamar, Yemen
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Zhong Z, Xie A, Pan J, Li M, Wang J, Jiang S, Lin J, Zhu S, Luo S. Well-matched core–shell NiO@LaMnO3/MWCNTs p-p homotype heterojunction for ascorbic acid detection. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.117080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Abstract
In the current work, the nanocomposites that consist chiefly of three components—α-Fe2O3, NiO and Ni2FeO4, in two different ratios 2:2:1 (FNN-221) and 2:1:1 (FNN-211), respectively—were produced. The synthesis was done in two steps by following the chemical co-precipitation and mechanical ball-milling route. The presence of individual phase was identified from the XRD data without the detection of any additional impurities. The phase fraction of each component estimated from the profile fitting of XRD patterns were found to be 41.2%, 39.7%, 19.1% in FNN-221 sample and 49.5%, 26.4%, 24.1% for FNN-211 sample, respectively, which were consistent with the experimental values. The total magnetization at 300 K was obtained to be 13.41 emu/g and 10.95 emu/g for FNN-221 and FNN-211 samples, respectively. In FNN-211 compound the zero field coercivity (HC) expanded towards the higher field values thereby signifying the exchange bias behavior. Furthermore, the exchange bias field (Hex) for FNN-211 was obtained as 35.1 Oe.
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Wang F, Xu Y, Liu X, Liu Y, Liu J, Teng B. Pinpointing the active sites and reaction mechanism of CO oxidation on NiO. Phys Chem Chem Phys 2019; 21:17852-17858. [DOI: 10.1039/c9cp03132d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CO oxidation on NiO by different oxygen species was investigated using a global pathway searching method.
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Affiliation(s)
- Fang Wang
- College of Chemistry and Life Sciences
- Zhejiang Normal University
- Key Lab of Advanced Catalytic Materials of Ministry of Education
- Jinhua
- China
| | - Yuxing Xu
- College of Chemistry and Life Sciences
- Zhejiang Normal University
- Key Lab of Advanced Catalytic Materials of Ministry of Education
- Jinhua
- China
| | - Xingchen Liu
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Ya Liu
- College of Chemistry and Life Sciences
- Zhejiang Normal University
- Key Lab of Advanced Catalytic Materials of Ministry of Education
- Jinhua
- China
| | - Jie Liu
- College of Chemistry and Life Sciences
- Zhejiang Normal University
- Key Lab of Advanced Catalytic Materials of Ministry of Education
- Jinhua
- China
| | - Botao Teng
- College of Chemistry and Life Sciences
- Zhejiang Normal University
- Key Lab of Advanced Catalytic Materials of Ministry of Education
- Jinhua
- China
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