{"title":"利用鱼腥草叶提取物合成和表征 CeO2 纳米粒子及其 CO 气体传感和抗菌活性","authors":"Huda Imran Ahemad , Ganesh Eknath Patil , Yogesh Bhaskar Aher , Momin Shoaib Malik , Laxmi Dilip Sonawane , Manoj Annasaheb More , Abhinay Subhash Mandawade , Dnyaneshwari Yuvraj Patil , Sarika Digambar Shinde , Gotan Hiralal Jain","doi":"10.1016/j.matlet.2024.137652","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, we synthesized cerium oxide nanoparticles (CeO<sub>2</sub> NPs) using <em>Plectranthus barbatus</em> leaf extract. Characterization via X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), and UV–visible spectroscopy revealed a bandgap of 2.98 eV. XRD confirmed their crystalline nature, while HRTEM showed cubic fluorite structures with an average particle size of 11.23 nm. The CeO<sub>2</sub> NPs exhibited antibacterial properties against both gram-positive and gram-negative bacteria and high sensitivity to carbon monoxide (CO) at 100 °C, especially at low concentrations. This research highlights the low environmental impact and potential applications of CeO<sub>2</sub> NPs in gas sensing and antibacterial contexts.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"379 ","pages":"Article 137652"},"PeriodicalIF":2.7000,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis and characterization of CeO2 nanoparticles using Plectranthus barbatus leaf extract and its CO gas sensing and antimicrobial activity\",\"authors\":\"Huda Imran Ahemad , Ganesh Eknath Patil , Yogesh Bhaskar Aher , Momin Shoaib Malik , Laxmi Dilip Sonawane , Manoj Annasaheb More , Abhinay Subhash Mandawade , Dnyaneshwari Yuvraj Patil , Sarika Digambar Shinde , Gotan Hiralal Jain\",\"doi\":\"10.1016/j.matlet.2024.137652\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In this study, we synthesized cerium oxide nanoparticles (CeO<sub>2</sub> NPs) using <em>Plectranthus barbatus</em> leaf extract. Characterization via X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), and UV–visible spectroscopy revealed a bandgap of 2.98 eV. XRD confirmed their crystalline nature, while HRTEM showed cubic fluorite structures with an average particle size of 11.23 nm. The CeO<sub>2</sub> NPs exhibited antibacterial properties against both gram-positive and gram-negative bacteria and high sensitivity to carbon monoxide (CO) at 100 °C, especially at low concentrations. This research highlights the low environmental impact and potential applications of CeO<sub>2</sub> NPs in gas sensing and antibacterial contexts.</div></div>\",\"PeriodicalId\":384,\"journal\":{\"name\":\"Materials Letters\",\"volume\":\"379 \",\"pages\":\"Article 137652\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-11-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167577X24017920\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X24017920","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Synthesis and characterization of CeO2 nanoparticles using Plectranthus barbatus leaf extract and its CO gas sensing and antimicrobial activity
In this study, we synthesized cerium oxide nanoparticles (CeO2 NPs) using Plectranthus barbatus leaf extract. Characterization via X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), and UV–visible spectroscopy revealed a bandgap of 2.98 eV. XRD confirmed their crystalline nature, while HRTEM showed cubic fluorite structures with an average particle size of 11.23 nm. The CeO2 NPs exhibited antibacterial properties against both gram-positive and gram-negative bacteria and high sensitivity to carbon monoxide (CO) at 100 °C, especially at low concentrations. This research highlights the low environmental impact and potential applications of CeO2 NPs in gas sensing and antibacterial contexts.
期刊介绍：
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive
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