Green electrochemical synthesis of ZnO-graphene composite nanopowder and its improved antimicrobial properties
Zinc oxide (ZnO) nanoparticles are used as an antimicrobial agent against microorganisms. Conventionally, ZnO is prepared via chemical routes that make use of toxic and expensive chemicals. Synthesis of ZnO nanoparticles via an eco-friendly method without using toxic chemicals and enhance their anti...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Next Nanotechnology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S294982952500052X |
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| author | G. Awasthi A.K. Pramanick D. Mandal M. Salot K. Santhy N. Jamnapara S.K. Chaudhury |
| author_facet | G. Awasthi A.K. Pramanick D. Mandal M. Salot K. Santhy N. Jamnapara S.K. Chaudhury |
| author_sort | G. Awasthi |
| collection | DOAJ |
| description | Zinc oxide (ZnO) nanoparticles are used as an antimicrobial agent against microorganisms. Conventionally, ZnO is prepared via chemical routes that make use of toxic and expensive chemicals. Synthesis of ZnO nanoparticles via an eco-friendly method without using toxic chemicals and enhance their antimicrobial activity are of paramount value to industries. In this study, ZnO nanoparticles were synthesized using an efficient green electrochemical oxidation process. The as-synthesized ZnO nanoparticles were characterized using X-ray diffraction (XRD), High-Resolution Scanning Electron Microscope (HRSEM), Transmission Electron Microscope (TEM), and Raman spectroscopy. The XRD analysis confirmed the synthesis of ZnO nanoparticles with a crystallite size of 24.2 nm. Antimicrobial resistance of ZnO nanopowder was enhanced by manually mixing them with 5 wt% graphene. The graphene nanoplatelets were synthesized by green electrochemical exfoliation of graphite. Raman spectroscopy confirmed the synthesis of 3–5 layers of graphene with low defect concentrations. The graphene-ZnO composite nanopowder showed an increase in potency of 121.64 % against Staphylococcus aureus (S. aureus) bacterium compared to pristine ZnO nanoparticles. |
| format | Article |
| id | doaj-art-93b41f7e6bc24b979152d3bc75d0c155 |
| institution | DOAJ |
| issn | 2949-8295 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Nanotechnology |
| spelling | doaj-art-93b41f7e6bc24b979152d3bc75d0c1552025-08-20T03:23:03ZengElsevierNext Nanotechnology2949-82952025-01-01710018310.1016/j.nxnano.2025.100183Green electrochemical synthesis of ZnO-graphene composite nanopowder and its improved antimicrobial propertiesG. Awasthi0A.K. Pramanick1D. Mandal2M. Salot3K. Santhy4N. Jamnapara5S.K. Chaudhury6Indus University, Ahmedabad 382115, IndiaCSIR-National Metallurgical Laboratory, Jamshedpur 831007, IndiaNational Institute of Technology, Durgapur 713209, IndiaIndus University, Ahmedabad 382115, IndiaIndus University, Ahmedabad 382115, India; Corresponding authors.Institute for Plasma Research, Gandhinagar 382428, IndiaIndus University, Ahmedabad 382115, India; Corresponding authors.Zinc oxide (ZnO) nanoparticles are used as an antimicrobial agent against microorganisms. Conventionally, ZnO is prepared via chemical routes that make use of toxic and expensive chemicals. Synthesis of ZnO nanoparticles via an eco-friendly method without using toxic chemicals and enhance their antimicrobial activity are of paramount value to industries. In this study, ZnO nanoparticles were synthesized using an efficient green electrochemical oxidation process. The as-synthesized ZnO nanoparticles were characterized using X-ray diffraction (XRD), High-Resolution Scanning Electron Microscope (HRSEM), Transmission Electron Microscope (TEM), and Raman spectroscopy. The XRD analysis confirmed the synthesis of ZnO nanoparticles with a crystallite size of 24.2 nm. Antimicrobial resistance of ZnO nanopowder was enhanced by manually mixing them with 5 wt% graphene. The graphene nanoplatelets were synthesized by green electrochemical exfoliation of graphite. Raman spectroscopy confirmed the synthesis of 3–5 layers of graphene with low defect concentrations. The graphene-ZnO composite nanopowder showed an increase in potency of 121.64 % against Staphylococcus aureus (S. aureus) bacterium compared to pristine ZnO nanoparticles.http://www.sciencedirect.com/science/article/pii/S294982952500052XGrapheneZnOAntimicrobialS. aureus |
| spellingShingle | G. Awasthi A.K. Pramanick D. Mandal M. Salot K. Santhy N. Jamnapara S.K. Chaudhury Green electrochemical synthesis of ZnO-graphene composite nanopowder and its improved antimicrobial properties Next Nanotechnology Graphene ZnO Antimicrobial S. aureus |
| title | Green electrochemical synthesis of ZnO-graphene composite nanopowder and its improved antimicrobial properties |
| title_full | Green electrochemical synthesis of ZnO-graphene composite nanopowder and its improved antimicrobial properties |
| title_fullStr | Green electrochemical synthesis of ZnO-graphene composite nanopowder and its improved antimicrobial properties |
| title_full_unstemmed | Green electrochemical synthesis of ZnO-graphene composite nanopowder and its improved antimicrobial properties |
| title_short | Green electrochemical synthesis of ZnO-graphene composite nanopowder and its improved antimicrobial properties |
| title_sort | green electrochemical synthesis of zno graphene composite nanopowder and its improved antimicrobial properties |
| topic | Graphene ZnO Antimicrobial S. aureus |
| url | http://www.sciencedirect.com/science/article/pii/S294982952500052X |
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