{"title":"探索溶胶-凝胶法制备Dy0.5Er0.5CrO3纳米材料的光学、阻抗和光催化性能","authors":"Manjeet Rani, Kuldeep Singh, Amrita Kumari, Meena Laad, Venkata Sreenivas Puli, Neeraj Panwar","doi":"10.1007/s10971-025-06856-9","DOIUrl":null,"url":null,"abstract":"<div><p>The multifunctional properties, including optical, complex impedance, and photocatalytic performance of Dy<sub>0.5</sub>Er<sub>0.5</sub>CrO<sub>3</sub> (DECO) compound fabricated <i>via</i> the sol-gel method have been thoroughly investigated. The optical study revealed an optical bandgap energy of 2.67 eV, indicating its potential for solar-light-driven photocatalytic degradation of harmful organic dyes. The AC-conductivity was investigated as a function of frequency and temperature. Its frequency dependence was found to follow Jonscher’s power law. The temperature-dependent <i>ac</i>-conductivity was explained by two models: the non-overlapping small polaron tunneling (NSPT) model and the correlated barrier hopping (CBH) model. The impedance data analysis revealed a non-Debye type relaxation. The prepared material in this study demonstrated degradation efficiencies of 57% for Methylene Blue (MB) dye and 70% for Rhodamine B (RhB) dye. Notably, the degradation rate for RhB dye was found to be 54% higher than that of MB dye. Better optical, dielectric, and photocatalytic properties make this material useful for multifunctional applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Schematic illustration of photocatalytic degradation process of MB and RhB dyes by visible light-irradiated Dy<sub>0.5</sub>Er<sub>0.5</sub>CrO<sub>3</sub> (DECO) nanoparticles.</p></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"115 2","pages":"778 - 792"},"PeriodicalIF":3.2000,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Exploring multifunctionality: optical, impedance, and photocatalytic properties of Dy0.5Er0.5CrO3 nanomaterial synthesized via sol-gel method\",\"authors\":\"Manjeet Rani, Kuldeep Singh, Amrita Kumari, Meena Laad, Venkata Sreenivas Puli, Neeraj Panwar\",\"doi\":\"10.1007/s10971-025-06856-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The multifunctional properties, including optical, complex impedance, and photocatalytic performance of Dy<sub>0.5</sub>Er<sub>0.5</sub>CrO<sub>3</sub> (DECO) compound fabricated <i>via</i> the sol-gel method have been thoroughly investigated. The optical study revealed an optical bandgap energy of 2.67 eV, indicating its potential for solar-light-driven photocatalytic degradation of harmful organic dyes. The AC-conductivity was investigated as a function of frequency and temperature. Its frequency dependence was found to follow Jonscher’s power law. The temperature-dependent <i>ac</i>-conductivity was explained by two models: the non-overlapping small polaron tunneling (NSPT) model and the correlated barrier hopping (CBH) model. The impedance data analysis revealed a non-Debye type relaxation. The prepared material in this study demonstrated degradation efficiencies of 57% for Methylene Blue (MB) dye and 70% for Rhodamine B (RhB) dye. Notably, the degradation rate for RhB dye was found to be 54% higher than that of MB dye. Better optical, dielectric, and photocatalytic properties make this material useful for multifunctional applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Schematic illustration of photocatalytic degradation process of MB and RhB dyes by visible light-irradiated Dy<sub>0.5</sub>Er<sub>0.5</sub>CrO<sub>3</sub> (DECO) nanoparticles.</p></div></div></figure></div></div>\",\"PeriodicalId\":664,\"journal\":{\"name\":\"Journal of Sol-Gel Science and Technology\",\"volume\":\"115 2\",\"pages\":\"778 - 792\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2025-07-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Sol-Gel Science and Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10971-025-06856-9\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sol-Gel Science and Technology","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10971-025-06856-9","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Exploring multifunctionality: optical, impedance, and photocatalytic properties of Dy0.5Er0.5CrO3 nanomaterial synthesized via sol-gel method
The multifunctional properties, including optical, complex impedance, and photocatalytic performance of Dy0.5Er0.5CrO3 (DECO) compound fabricated via the sol-gel method have been thoroughly investigated. The optical study revealed an optical bandgap energy of 2.67 eV, indicating its potential for solar-light-driven photocatalytic degradation of harmful organic dyes. The AC-conductivity was investigated as a function of frequency and temperature. Its frequency dependence was found to follow Jonscher’s power law. The temperature-dependent ac-conductivity was explained by two models: the non-overlapping small polaron tunneling (NSPT) model and the correlated barrier hopping (CBH) model. The impedance data analysis revealed a non-Debye type relaxation. The prepared material in this study demonstrated degradation efficiencies of 57% for Methylene Blue (MB) dye and 70% for Rhodamine B (RhB) dye. Notably, the degradation rate for RhB dye was found to be 54% higher than that of MB dye. Better optical, dielectric, and photocatalytic properties make this material useful for multifunctional applications.
Graphical Abstract
Schematic illustration of photocatalytic degradation process of MB and RhB dyes by visible light-irradiated Dy0.5Er0.5CrO3 (DECO) nanoparticles.
期刊介绍：
The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.
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