H. M. Ragab, N. S. Diab, Ghadah Mohammad Aleid, Azzah M Alghamdi, L. A.M. Al-sagheer, M. O. Farea
{"title":"镍铁氧体纳米粒子增强羟丙基甲基纤维素/聚乙烯醇纳米复合材料的结构、光学和电学性能，用于光电应用","authors":"H. M. Ragab, N. S. Diab, Ghadah Mohammad Aleid, Azzah M Alghamdi, L. A.M. Al-sagheer, M. O. Farea","doi":"10.1007/s10904-024-03337-4","DOIUrl":null,"url":null,"abstract":"<p>This study investigates the potential of nickel ferrite nanoparticles (NiFe<sub>2</sub>O<sub>4</sub> NPs) to improve the structural, optical, magnetic, and electrical properties of a blend of hydroxypropyl methylcellulose (HPMC) and polyvinyl alcohol (PVA) for energy storage applications. NiFe<sub>2</sub>O<sub>4</sub> NPs were synthesized using a co-precipitation method and subsequently dispersed within the HPMC/PVA matrix via solution casting to create nanocomposite films. XRD analysis revealed a decrease in crystallinity within the HPMC/PVA blend upon the incorporation of NiFe<sub>2</sub>O<sub>4</sub> NPs. FT-IR spectroscopy identified characteristic vibrational peaks that shifted in intensity with increasing NiFe<sub>2</sub>O<sub>4</sub> concentration, suggesting interactions between the nanoparticles and the polymer matrix. UV-Vis measurements showed a rise in absorbance of the nanocomposites with increasing NiFe<sub>2</sub>O<sub>4</sub> content. The bandgap energy (Eg) decreased with increasing nanofiller concentration. This trend was evident for both direct transitions, which decreased from 5.07 eV to 4.10 eV, and indirect transitions, which dropped from 4.57 eV to 3.44 eV. Impedance spectroscopy studies demonstrated a significant enhancement in AC electrical conductivity, dielectric loss, and dielectric constant of the nanocomposites with increasing NiFe<sub>2</sub>O<sub>4</sub> content. There was a substantial increase in direct current conductivity (σdc) from 3.29 × 10<sup>− 11</sup> S/cm to 1.16 × 10<sup>− 9</sup> S/cm, accompanied by a decrease in the frequency exponent (s) from 0.82 to 0.52. Vibrating sample magnetometry (VSM) measurements confirmed the ferromagnetic nature of the nanocomposite films, with magnetic parameters exhibiting a strong dependence on the NiFe<sub>2</sub>O<sub>4</sub> concentration. These findings suggest that the biodegradable HPMC/PVA-NiFe<sub>2</sub>O<sub>4</sub> nanocomposites hold promise as advanced materials for optoelectronic devices and capacitive energy storage systems due to their combined structural, optical, magnetic, and electrical properties.</p>","PeriodicalId":639,"journal":{"name":"Journal of Inorganic and Organometallic Polymers and Materials","volume":"18 1","pages":""},"PeriodicalIF":3.9000,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancement of Structural, Optical, and Electrical Properties of Hydroxypropyl Methylcellulose/Polyvinyl Alcohol Nanocomposites by Nickel Ferrite Nanoparticles for Optoelectronic Applications\",\"authors\":\"H. M. Ragab, N. S. Diab, Ghadah Mohammad Aleid, Azzah M Alghamdi, L. A.M. Al-sagheer, M. O. Farea\",\"doi\":\"10.1007/s10904-024-03337-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This study investigates the potential of nickel ferrite nanoparticles (NiFe<sub>2</sub>O<sub>4</sub> NPs) to improve the structural, optical, magnetic, and electrical properties of a blend of hydroxypropyl methylcellulose (HPMC) and polyvinyl alcohol (PVA) for energy storage applications. NiFe<sub>2</sub>O<sub>4</sub> NPs were synthesized using a co-precipitation method and subsequently dispersed within the HPMC/PVA matrix via solution casting to create nanocomposite films. XRD analysis revealed a decrease in crystallinity within the HPMC/PVA blend upon the incorporation of NiFe<sub>2</sub>O<sub>4</sub> NPs. FT-IR spectroscopy identified characteristic vibrational peaks that shifted in intensity with increasing NiFe<sub>2</sub>O<sub>4</sub> concentration, suggesting interactions between the nanoparticles and the polymer matrix. UV-Vis measurements showed a rise in absorbance of the nanocomposites with increasing NiFe<sub>2</sub>O<sub>4</sub> content. The bandgap energy (Eg) decreased with increasing nanofiller concentration. This trend was evident for both direct transitions, which decreased from 5.07 eV to 4.10 eV, and indirect transitions, which dropped from 4.57 eV to 3.44 eV. Impedance spectroscopy studies demonstrated a significant enhancement in AC electrical conductivity, dielectric loss, and dielectric constant of the nanocomposites with increasing NiFe<sub>2</sub>O<sub>4</sub> content. There was a substantial increase in direct current conductivity (σdc) from 3.29 × 10<sup>− 11</sup> S/cm to 1.16 × 10<sup>− 9</sup> S/cm, accompanied by a decrease in the frequency exponent (s) from 0.82 to 0.52. Vibrating sample magnetometry (VSM) measurements confirmed the ferromagnetic nature of the nanocomposite films, with magnetic parameters exhibiting a strong dependence on the NiFe<sub>2</sub>O<sub>4</sub> concentration. 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Enhancement of Structural, Optical, and Electrical Properties of Hydroxypropyl Methylcellulose/Polyvinyl Alcohol Nanocomposites by Nickel Ferrite Nanoparticles for Optoelectronic Applications
This study investigates the potential of nickel ferrite nanoparticles (NiFe2O4 NPs) to improve the structural, optical, magnetic, and electrical properties of a blend of hydroxypropyl methylcellulose (HPMC) and polyvinyl alcohol (PVA) for energy storage applications. NiFe2O4 NPs were synthesized using a co-precipitation method and subsequently dispersed within the HPMC/PVA matrix via solution casting to create nanocomposite films. XRD analysis revealed a decrease in crystallinity within the HPMC/PVA blend upon the incorporation of NiFe2O4 NPs. FT-IR spectroscopy identified characteristic vibrational peaks that shifted in intensity with increasing NiFe2O4 concentration, suggesting interactions between the nanoparticles and the polymer matrix. UV-Vis measurements showed a rise in absorbance of the nanocomposites with increasing NiFe2O4 content. The bandgap energy (Eg) decreased with increasing nanofiller concentration. This trend was evident for both direct transitions, which decreased from 5.07 eV to 4.10 eV, and indirect transitions, which dropped from 4.57 eV to 3.44 eV. Impedance spectroscopy studies demonstrated a significant enhancement in AC electrical conductivity, dielectric loss, and dielectric constant of the nanocomposites with increasing NiFe2O4 content. There was a substantial increase in direct current conductivity (σdc) from 3.29 × 10− 11 S/cm to 1.16 × 10− 9 S/cm, accompanied by a decrease in the frequency exponent (s) from 0.82 to 0.52. Vibrating sample magnetometry (VSM) measurements confirmed the ferromagnetic nature of the nanocomposite films, with magnetic parameters exhibiting a strong dependence on the NiFe2O4 concentration. These findings suggest that the biodegradable HPMC/PVA-NiFe2O4 nanocomposites hold promise as advanced materials for optoelectronic devices and capacitive energy storage systems due to their combined structural, optical, magnetic, and electrical properties.
期刊介绍：
Journal of Inorganic and Organometallic Polymers and Materials [JIOP or JIOPM] is a comprehensive resource for reports on the latest theoretical and experimental research. This bimonthly journal encompasses a broad range of synthetic and natural substances which contain main group, transition, and inner transition elements. The publication includes fully peer-reviewed original papers and shorter communications, as well as topical review papers that address the synthesis, characterization, evaluation, and phenomena of inorganic and organometallic polymers, materials, and supramolecular systems.
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