{"title":"二氧化硅对钴铁氧体纳米粒子的结构、磁性和非线性光学行为的影响","authors":"","doi":"10.1016/j.molstruc.2024.139912","DOIUrl":null,"url":null,"abstract":"<div><p>CoFe<sub>2</sub>O<sub>4</sub> and CoFe<sub>2</sub>O<sub>4</sub>/SiO<sub>2</sub> were synthesized by sol-gel method. The studies carried out using XRD, FT-IR, SEM, TEM, VSM, UV–Vis DRS, and Z-scan techniques. The CoFe<sub>2</sub>O<sub>4</sub> has the inverse cubic spinal structure. TEM and SEM confirmed the less crystallite size of CoFe<sub>2</sub>O<sub>4</sub>/SiO<sub>2</sub> nanocomposite than CoFe<sub>2</sub>O<sub>4</sub>. The results show that two samples have a pure single phase cobalt ferrite with face-centred cubic spinel phase. SiO<sub>2</sub> matrix in CoFe<sub>2</sub>O<sub>4</sub> nanocomposite results in reduction particle size and magnetic properties as well as enhancement band gap. The band-gap energy of CoFe<sub>2</sub>O<sub>4</sub> and CoFe<sub>2</sub>O<sub>4</sub>/SiO<sub>2</sub> calculated 1.76 and 1.92 eV, respectively. Our findings in nonlinear optical aspects suggest that the distinctive characteristics of CoFe<sub>2</sub>O<sub>4</sub>/SiO<sub>2</sub> present opportunities for advancements in telecommunications and other related fields.</p></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":null,"pages":null},"PeriodicalIF":4.0000,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0022286024024219/pdfft?md5=a31b742b3a960ca05f34098daf1f45b6&pid=1-s2.0-S0022286024024219-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Effect of SiO2 on structural, magnetic, and nonlinear optical behavior of cobalt ferrite nanoparticles\",\"authors\":\"\",\"doi\":\"10.1016/j.molstruc.2024.139912\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>CoFe<sub>2</sub>O<sub>4</sub> and CoFe<sub>2</sub>O<sub>4</sub>/SiO<sub>2</sub> were synthesized by sol-gel method. The studies carried out using XRD, FT-IR, SEM, TEM, VSM, UV–Vis DRS, and Z-scan techniques. The CoFe<sub>2</sub>O<sub>4</sub> has the inverse cubic spinal structure. TEM and SEM confirmed the less crystallite size of CoFe<sub>2</sub>O<sub>4</sub>/SiO<sub>2</sub> nanocomposite than CoFe<sub>2</sub>O<sub>4</sub>. The results show that two samples have a pure single phase cobalt ferrite with face-centred cubic spinel phase. SiO<sub>2</sub> matrix in CoFe<sub>2</sub>O<sub>4</sub> nanocomposite results in reduction particle size and magnetic properties as well as enhancement band gap. The band-gap energy of CoFe<sub>2</sub>O<sub>4</sub> and CoFe<sub>2</sub>O<sub>4</sub>/SiO<sub>2</sub> calculated 1.76 and 1.92 eV, respectively. Our findings in nonlinear optical aspects suggest that the distinctive characteristics of CoFe<sub>2</sub>O<sub>4</sub>/SiO<sub>2</sub> present opportunities for advancements in telecommunications and other related fields.</p></div>\",\"PeriodicalId\":16414,\"journal\":{\"name\":\"Journal of Molecular Structure\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.0000,\"publicationDate\":\"2024-09-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0022286024024219/pdfft?md5=a31b742b3a960ca05f34098daf1f45b6&pid=1-s2.0-S0022286024024219-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Molecular Structure\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022286024024219\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Molecular Structure","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022286024024219","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Effect of SiO2 on structural, magnetic, and nonlinear optical behavior of cobalt ferrite nanoparticles
CoFe2O4 and CoFe2O4/SiO2 were synthesized by sol-gel method. The studies carried out using XRD, FT-IR, SEM, TEM, VSM, UV–Vis DRS, and Z-scan techniques. The CoFe2O4 has the inverse cubic spinal structure. TEM and SEM confirmed the less crystallite size of CoFe2O4/SiO2 nanocomposite than CoFe2O4. The results show that two samples have a pure single phase cobalt ferrite with face-centred cubic spinel phase. SiO2 matrix in CoFe2O4 nanocomposite results in reduction particle size and magnetic properties as well as enhancement band gap. The band-gap energy of CoFe2O4 and CoFe2O4/SiO2 calculated 1.76 and 1.92 eV, respectively. Our findings in nonlinear optical aspects suggest that the distinctive characteristics of CoFe2O4/SiO2 present opportunities for advancements in telecommunications and other related fields.
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The Journal of Molecular Structure is dedicated to the publication of full-length articles and review papers, providing important new structural information on all types of chemical species including:
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