Biosynthesis of ZnO nanoparticles using banana peel pectin for antibacterial and photocatalytic applications
In this study, pectin was extracted from unripe banana peel utilizing a straightforward and unique sonochemical method. The extracted pectin was subsequently employed as an efficient ligand in synthesizing zinc oxide nanoparticles (p-ZnO NPs) through a green chemistry approach. The nanoparticles wer...
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Elsevier
2025-04-01
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| Series: | South African Journal of Chemical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1026918525000137 |
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| author | Kazi Suraiya Islam Md. Hasnain Mustak Md. Khalid Hossain Shishir Md. Minnatul Karim Gazi Md. Arifuzzaman Khan |
| author_facet | Kazi Suraiya Islam Md. Hasnain Mustak Md. Khalid Hossain Shishir Md. Minnatul Karim Gazi Md. Arifuzzaman Khan |
| author_sort | Kazi Suraiya Islam |
| collection | DOAJ |
| description | In this study, pectin was extracted from unripe banana peel utilizing a straightforward and unique sonochemical method. The extracted pectin was subsequently employed as an efficient ligand in synthesizing zinc oxide nanoparticles (p-ZnO NPs) through a green chemistry approach. The nanoparticles were characterized using X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and UV–visible spectroscopy to evaluate their purity, size, morphology and crystallinity. The UV–vis analysis revealed absorption peak at 338.0 nm with an optical band gap of 3.08 eV, confirming the synthesis of p-ZnO NPs. The XRD analysis confirmed the formation of phase-pure wurtzite structures in the synthesized p-ZnO nanoparticles (NPs), with an average crystallite size of 28.78 nm. The SEM analysis revealed that the p-ZnO NPs exhibited rod-shaped morphology and the characteristic band observed in FTIR spectroscopy at 476 cm⁻¹. A potential mechanism for the formation of the p-ZnO NPs has been proposed. The photocatalytic activity of the p-ZnO NPs was assessed through the degradation of methylene blue (MB) dye under UV light. The maximum degradation efficiency of MB dye reached 78.5 % after 30.0 mins of UV light exposure. Moreover, the p-ZnO NPs exhibited a significant bactericidal effect against drug-resistant gram-positive Staphylococcus aureus but were ineffective against gram-negative Escherichia coli. |
| format | Article |
| id | doaj-art-d40178f89adf4defa98cb8048fe15fc1 |
| institution | Kabale University |
| issn | 1026-9185 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | South African Journal of Chemical Engineering |
| spelling | doaj-art-d40178f89adf4defa98cb8048fe15fc12025-02-09T04:59:44ZengElsevierSouth African Journal of Chemical Engineering1026-91852025-04-0152127140Biosynthesis of ZnO nanoparticles using banana peel pectin for antibacterial and photocatalytic applicationsKazi Suraiya Islam0Md. Hasnain Mustak1Md. Khalid Hossain Shishir2Md. Minnatul Karim3Gazi Md. Arifuzzaman Khan4Department of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, BangladeshDepartment of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh; Mineralogy and Metallurgy, Institute of Mining, Bangladesh Council of Scientific and Industrial Research, Joypurhat 5900, BangladeshDepartment of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, BangladeshDepartment of Biotechnology and Genetic Engineering, Islamic University, Kushtia 7003, BangladeshDepartment of Applied Chemistry and Chemical Engineering, Islamic University, Kushtia 7003, Bangladesh; Corresponding author.In this study, pectin was extracted from unripe banana peel utilizing a straightforward and unique sonochemical method. The extracted pectin was subsequently employed as an efficient ligand in synthesizing zinc oxide nanoparticles (p-ZnO NPs) through a green chemistry approach. The nanoparticles were characterized using X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and UV–visible spectroscopy to evaluate their purity, size, morphology and crystallinity. The UV–vis analysis revealed absorption peak at 338.0 nm with an optical band gap of 3.08 eV, confirming the synthesis of p-ZnO NPs. The XRD analysis confirmed the formation of phase-pure wurtzite structures in the synthesized p-ZnO nanoparticles (NPs), with an average crystallite size of 28.78 nm. The SEM analysis revealed that the p-ZnO NPs exhibited rod-shaped morphology and the characteristic band observed in FTIR spectroscopy at 476 cm⁻¹. A potential mechanism for the formation of the p-ZnO NPs has been proposed. The photocatalytic activity of the p-ZnO NPs was assessed through the degradation of methylene blue (MB) dye under UV light. The maximum degradation efficiency of MB dye reached 78.5 % after 30.0 mins of UV light exposure. Moreover, the p-ZnO NPs exhibited a significant bactericidal effect against drug-resistant gram-positive Staphylococcus aureus but were ineffective against gram-negative Escherichia coli.http://www.sciencedirect.com/science/article/pii/S1026918525000137Antibacterial activityBanana peel pectinMorphologyPectin-ZnO NPsPhotocatalytic properties |
| spellingShingle | Kazi Suraiya Islam Md. Hasnain Mustak Md. Khalid Hossain Shishir Md. Minnatul Karim Gazi Md. Arifuzzaman Khan Biosynthesis of ZnO nanoparticles using banana peel pectin for antibacterial and photocatalytic applications South African Journal of Chemical Engineering Antibacterial activity Banana peel pectin Morphology Pectin-ZnO NPs Photocatalytic properties |
| title | Biosynthesis of ZnO nanoparticles using banana peel pectin for antibacterial and photocatalytic applications |
| title_full | Biosynthesis of ZnO nanoparticles using banana peel pectin for antibacterial and photocatalytic applications |
| title_fullStr | Biosynthesis of ZnO nanoparticles using banana peel pectin for antibacterial and photocatalytic applications |
| title_full_unstemmed | Biosynthesis of ZnO nanoparticles using banana peel pectin for antibacterial and photocatalytic applications |
| title_short | Biosynthesis of ZnO nanoparticles using banana peel pectin for antibacterial and photocatalytic applications |
| title_sort | biosynthesis of zno nanoparticles using banana peel pectin for antibacterial and photocatalytic applications |
| topic | Antibacterial activity Banana peel pectin Morphology Pectin-ZnO NPs Photocatalytic properties |
| url | http://www.sciencedirect.com/science/article/pii/S1026918525000137 |
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