Effect of Synthesis Conditions on CuO-NiO Nanocomposites Synthesized via Saponin-Green/Microwave Assisted-Hydrothermal Method
This work presents the synthesis of CuO-NiO nanocomposites under different synthesis conditions. Nanocomposites were synthesized by merging a green synthesis process with a microwave-assisted hydrothermal method. The synthesis conditions were as follows: concentration of the metal precursors (0.05,...
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MDPI AG
2024-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/14/3/308 |
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| author | Amnah Al-Yunus Wafa Al-Arjan Hassan Traboulsi Robson Schuarca Paul Chando Ian D. Hosein Manal Hessien |
| author_facet | Amnah Al-Yunus Wafa Al-Arjan Hassan Traboulsi Robson Schuarca Paul Chando Ian D. Hosein Manal Hessien |
| author_sort | Amnah Al-Yunus |
| collection | DOAJ |
| description | This work presents the synthesis of CuO-NiO nanocomposites under different synthesis conditions. Nanocomposites were synthesized by merging a green synthesis process with a microwave-assisted hydrothermal method. The synthesis conditions were as follows: concentration of the metal precursors (0.05, 0.1, and 0.2 M), pH (9, 10, and 11), synthesis temperature (150 °C, 200 °C, and 250 °C), microwave treatment time (15, 30, and 45 min), and extract concentration (20 and 40 mL of 1 g saponin/10 mL water, and 30 mL of 2 g saponin/10 mL water). The phases and crystallite sizes of the calcined nanocomposites were characterized using XRD and band gap via UV-Vis spectroscopy, and their morphologies were investigated using SEM and TEM. The XRD results confirmed the formation of a face-centered cubic phase for nickel oxide, while copper oxide has a monoclinic phase. The calculated crystallite size was in the range of 29–39 nm. The direct band gaps of the samples prepared in this work were in the range of 2.39–3.17 eV. |
| first_indexed | 2024-03-08T03:51:30Z |
| format | Article |
| id | doaj.art-2d9b2e58738e48a2baf6c724d4781b14 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-08T03:51:30Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-2d9b2e58738e48a2baf6c724d4781b142024-02-09T15:19:32ZengMDPI AGNanomaterials2079-49912024-02-0114330810.3390/nano14030308Effect of Synthesis Conditions on CuO-NiO Nanocomposites Synthesized via Saponin-Green/Microwave Assisted-Hydrothermal MethodAmnah Al-Yunus0Wafa Al-Arjan1Hassan Traboulsi2Robson Schuarca3Paul Chando4Ian D. Hosein5Manal Hessien6Department of Chemistry, College of Science, King Faisal University, P.O. Box 400, Alahsa 31982, Saudi ArabiaDepartment of Chemistry, College of Science, King Faisal University, P.O. Box 400, Alahsa 31982, Saudi ArabiaDepartment of Chemistry, College of Science, King Faisal University, P.O. Box 400, Alahsa 31982, Saudi ArabiaDepartment of Biomedical and Chemical Engineering, College of Engineering and Computer Science, Syracuse University, 339 Link Hall, Syracuse, NY 13244, USADepartment of Biomedical and Chemical Engineering, College of Engineering and Computer Science, Syracuse University, 339 Link Hall, Syracuse, NY 13244, USADepartment of Biomedical and Chemical Engineering, College of Engineering and Computer Science, Syracuse University, 339 Link Hall, Syracuse, NY 13244, USADepartment of Chemistry, College of Science, King Faisal University, P.O. Box 400, Alahsa 31982, Saudi ArabiaThis work presents the synthesis of CuO-NiO nanocomposites under different synthesis conditions. Nanocomposites were synthesized by merging a green synthesis process with a microwave-assisted hydrothermal method. The synthesis conditions were as follows: concentration of the metal precursors (0.05, 0.1, and 0.2 M), pH (9, 10, and 11), synthesis temperature (150 °C, 200 °C, and 250 °C), microwave treatment time (15, 30, and 45 min), and extract concentration (20 and 40 mL of 1 g saponin/10 mL water, and 30 mL of 2 g saponin/10 mL water). The phases and crystallite sizes of the calcined nanocomposites were characterized using XRD and band gap via UV-Vis spectroscopy, and their morphologies were investigated using SEM and TEM. The XRD results confirmed the formation of a face-centered cubic phase for nickel oxide, while copper oxide has a monoclinic phase. The calculated crystallite size was in the range of 29–39 nm. The direct band gaps of the samples prepared in this work were in the range of 2.39–3.17 eV.https://www.mdpi.com/2079-4991/14/3/308CuO-NiO nanocompositessaponingreen hydrothermal-assisted microwavemicrostructure |
| spellingShingle | Amnah Al-Yunus Wafa Al-Arjan Hassan Traboulsi Robson Schuarca Paul Chando Ian D. Hosein Manal Hessien Effect of Synthesis Conditions on CuO-NiO Nanocomposites Synthesized via Saponin-Green/Microwave Assisted-Hydrothermal Method Nanomaterials CuO-NiO nanocomposites saponin green hydrothermal-assisted microwave microstructure |
| title | Effect of Synthesis Conditions on CuO-NiO Nanocomposites Synthesized via Saponin-Green/Microwave Assisted-Hydrothermal Method |
| title_full | Effect of Synthesis Conditions on CuO-NiO Nanocomposites Synthesized via Saponin-Green/Microwave Assisted-Hydrothermal Method |
| title_fullStr | Effect of Synthesis Conditions on CuO-NiO Nanocomposites Synthesized via Saponin-Green/Microwave Assisted-Hydrothermal Method |
| title_full_unstemmed | Effect of Synthesis Conditions on CuO-NiO Nanocomposites Synthesized via Saponin-Green/Microwave Assisted-Hydrothermal Method |
| title_short | Effect of Synthesis Conditions on CuO-NiO Nanocomposites Synthesized via Saponin-Green/Microwave Assisted-Hydrothermal Method |
| title_sort | effect of synthesis conditions on cuo nio nanocomposites synthesized via saponin green microwave assisted hydrothermal method |
| topic | CuO-NiO nanocomposites saponin green hydrothermal-assisted microwave microstructure |
| url | https://www.mdpi.com/2079-4991/14/3/308 |
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