Saravanabava J , Neelima S , Pradeep Kumar M , Lavanya Mandapati , Jayaraman Kamalakkannan , Shanmugam Vippamakula , Vignesh. R , Geetha Birudala , Vinod Kumar Nelson , Punna Rao Suryadevara , Selvankumar Thangaswamy
{"title":"利用龙葵提取物绿色合成ZnO/CuTiO2/PVDF纳米复合材料:光催化和生物应用","authors":"Saravanabava J , Neelima S , Pradeep Kumar M , Lavanya Mandapati , Jayaraman Kamalakkannan , Shanmugam Vippamakula , Vignesh. R , Geetha Birudala , Vinod Kumar Nelson , Punna Rao Suryadevara , Selvankumar Thangaswamy","doi":"10.1016/j.chphi.2025.100928","DOIUrl":null,"url":null,"abstract":"<div><div>A <strong>ZnO/CuTiO<sub>2</sub>/PVDF nanocomposite</strong> was synthesized via green synthesis using plant extract <em>Solanum nigrum</em> and co-precipitation. This novel material overcomes the inherent hydrophobicity of PVDF (polyvinylidene fluoride) by incorporating <strong>ZnO/CuTiO<sub>2</sub> nanoparticles</strong> as resistive transduction layers, thereby facilitating its optical and photocatalytic activity. The ZnO<img>CuTiO<sub>2</sub>/PVDF nanocomposite were characterized by SEM, TEM, EDX, PL and UV-DRS. According to the TEM and EDAX results spherical morphology and elemental composition of the <strong>ZnO/CuTiO<sub>2</sub>/PVDF nanocomposite were confirmed. The band gap of the</strong> ZnO<img>CuTiO<sub>2</sub>/PVDF nanocomposite was determined to be 2.3 eV, which was comparatively lower than pure ZnO (3.2 eV) band gap. The photocatalytic activity of the samples is analyzed using degradation of Trypan Blue (TB) under sun light irradiation. Among the samples, <strong>ZnO/CuTiO<sub>2</sub>/PVDF nanocomposite</strong> exhibited 95 % degradation efficiency with 45 min over 61 % degradation efficiency of ZnO. Owing to low bandgap and lower charge-carrier recombination of composite the degradation efficiency was higher than ZnO. Additionally, the reused for up to multiple cycle after a negligible reduction in activity making it an important resource for industrial applications. Finally, the antibacterial activity of the samples is studied by disc diffusion method against <em>E.Coli</em> and <em>S. aureus</em> bacteria. Thus, ZnO/CuTiO<sub>2</sub>/PVDF nanocomposite with improved photocatalytic and antibacterial activity.</div></div>","PeriodicalId":9758,"journal":{"name":"Chemical Physics Impact","volume":"11 ","pages":"Article 100928"},"PeriodicalIF":4.3000,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Green synthesis of ZnO/CuTiO2/PVDF nanocomposite using Solanum nigrum extract: photocatalytic and biological applications\",\"authors\":\"Saravanabava J , Neelima S , Pradeep Kumar M , Lavanya Mandapati , Jayaraman Kamalakkannan , Shanmugam Vippamakula , Vignesh. R , Geetha Birudala , Vinod Kumar Nelson , Punna Rao Suryadevara , Selvankumar Thangaswamy\",\"doi\":\"10.1016/j.chphi.2025.100928\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A <strong>ZnO/CuTiO<sub>2</sub>/PVDF nanocomposite</strong> was synthesized via green synthesis using plant extract <em>Solanum nigrum</em> and co-precipitation. This novel material overcomes the inherent hydrophobicity of PVDF (polyvinylidene fluoride) by incorporating <strong>ZnO/CuTiO<sub>2</sub> nanoparticles</strong> as resistive transduction layers, thereby facilitating its optical and photocatalytic activity. The ZnO<img>CuTiO<sub>2</sub>/PVDF nanocomposite were characterized by SEM, TEM, EDX, PL and UV-DRS. According to the TEM and EDAX results spherical morphology and elemental composition of the <strong>ZnO/CuTiO<sub>2</sub>/PVDF nanocomposite were confirmed. The band gap of the</strong> ZnO<img>CuTiO<sub>2</sub>/PVDF nanocomposite was determined to be 2.3 eV, which was comparatively lower than pure ZnO (3.2 eV) band gap. The photocatalytic activity of the samples is analyzed using degradation of Trypan Blue (TB) under sun light irradiation. Among the samples, <strong>ZnO/CuTiO<sub>2</sub>/PVDF nanocomposite</strong> exhibited 95 % degradation efficiency with 45 min over 61 % degradation efficiency of ZnO. Owing to low bandgap and lower charge-carrier recombination of composite the degradation efficiency was higher than ZnO. Additionally, the reused for up to multiple cycle after a negligible reduction in activity making it an important resource for industrial applications. Finally, the antibacterial activity of the samples is studied by disc diffusion method against <em>E.Coli</em> and <em>S. aureus</em> bacteria. Thus, ZnO/CuTiO<sub>2</sub>/PVDF nanocomposite with improved photocatalytic and antibacterial activity.</div></div>\",\"PeriodicalId\":9758,\"journal\":{\"name\":\"Chemical Physics Impact\",\"volume\":\"11 \",\"pages\":\"Article 100928\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2025-08-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemical Physics Impact\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2667022425001148\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Physics Impact","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667022425001148","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Green synthesis of ZnO/CuTiO2/PVDF nanocomposite using Solanum nigrum extract: photocatalytic and biological applications
A ZnO/CuTiO2/PVDF nanocomposite was synthesized via green synthesis using plant extract Solanum nigrum and co-precipitation. This novel material overcomes the inherent hydrophobicity of PVDF (polyvinylidene fluoride) by incorporating ZnO/CuTiO2 nanoparticles as resistive transduction layers, thereby facilitating its optical and photocatalytic activity. The ZnOCuTiO2/PVDF nanocomposite were characterized by SEM, TEM, EDX, PL and UV-DRS. According to the TEM and EDAX results spherical morphology and elemental composition of the ZnO/CuTiO2/PVDF nanocomposite were confirmed. The band gap of the ZnOCuTiO2/PVDF nanocomposite was determined to be 2.3 eV, which was comparatively lower than pure ZnO (3.2 eV) band gap. The photocatalytic activity of the samples is analyzed using degradation of Trypan Blue (TB) under sun light irradiation. Among the samples, ZnO/CuTiO2/PVDF nanocomposite exhibited 95 % degradation efficiency with 45 min over 61 % degradation efficiency of ZnO. Owing to low bandgap and lower charge-carrier recombination of composite the degradation efficiency was higher than ZnO. Additionally, the reused for up to multiple cycle after a negligible reduction in activity making it an important resource for industrial applications. Finally, the antibacterial activity of the samples is studied by disc diffusion method against E.Coli and S. aureus bacteria. Thus, ZnO/CuTiO2/PVDF nanocomposite with improved photocatalytic and antibacterial activity.