洞察通过溶液沉淀法合成的 ZnO 纳米粒子的明显介电响应和 Fe 掺杂对光催化效率（可见光）的影响，用于降解有害纺织染料

IF 2.1 4区材料科学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Journal of Nanoparticle Research Pub Date : 2024-10-05 DOI:10.1007/s11051-024-06146-5

K. Mahendra, Jean Maria Fernandes, Anupriya James, Nagaraja B.S., Jayadev Pattar, D. V. Sunitha, Kartik Gopal, N. K. Udayashankar

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引用次数: 0

摘要

通过化学沉淀技术合成了铁（Fe）掺杂氧化锌（ZnO）纳米粒子（NPs），并使用粉末 X 射线衍射（PXRD）、场发射扫描电子显微镜（FESEM）和紫外-可见漫反射光谱进行了研究。X 射线衍射分析表明，所有合成样品都具有六方菱镁矿结构。紫外可见光测量结果表明，随着铁浓度的增加，氧化锌的带隙减小。研究了 ZnO 和铁掺杂 ZnO NPs 在可见光照射下降解有机纺织染料的情况。在 20 Hz 至 1 MHz 的频率范围内，使用阻抗和介电测量对所有纳米粒子进行了深入研究。本文对所获得的结果进行了比较、解释和介绍。

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An insight into noticeable dielectric response and effect of fe doping on photocatalytic efficiency (visible light) of ZnO nanoparticles synthesized through solution precipitation for harmful textile dye degradation

Iron (Fe)-incorporated zinc oxide (ZnO) nanoparticles (NPs) were synthesized via chemical precipitation technique and studied using powder X-ray diffraction (PXRD), field emission scanning electron microscopy (FESEM), and UV–vis diffuse reflectance spectroscopy. PXRD analysis reveals a hexagonal wurtzite structure for all the synthesized samples. UV–visible measurements demonstrate a reduction in the bandgap of ZnO with an increase in Fe concentration. The ZnO and Fe-incorporated ZnO NPs are studied for the degradation of organic textile dye under visible light irradiation. All the nanoparticles are thoroughly investigated using impedance and dielectric measurements in the frequency range of 20 Hz to 1 MHz. The results obtained are compared, interpreted, and presented in this paper.

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来源期刊

Journal of Nanoparticle Research 工程技术-材料科学：综合

CiteScore

4.40

自引率

4.00%

发文量

198

审稿时长

3.9 months

期刊介绍： The objective of the Journal of Nanoparticle Research is to disseminate knowledge of the physical, chemical and biological phenomena and processes in structures that have at least one lengthscale ranging from molecular to approximately 100 nm (or submicron in some situations), and exhibit improved and novel properties that are a direct result of their small size. Nanoparticle research is a key component of nanoscience, nanoengineering and nanotechnology. The focus of the Journal is on the specific concepts, properties, phenomena, and processes related to particles, tubes, layers, macromolecules, clusters and other finite structures of the nanoscale size range. Synthesis, assembly, transport, reactivity, and stability of such structures are considered. Development of in-situ and ex-situ instrumentation for characterization of nanoparticles and their interfaces should be based on new principles for probing properties and phenomena not well understood at the nanometer scale. Modeling and simulation may include atom-based quantum mechanics; molecular dynamics; single-particle, multi-body and continuum based models; fractals; other methods suitable for modeling particle synthesis, assembling and interaction processes. Realization and application of systems, structures and devices with novel functions obtained via precursor nanoparticles is emphasized. Approaches may include gas-, liquid-, solid-, and vacuum-based processes, size reduction, chemical- and bio-self assembly. Contributions include utilization of nanoparticle systems for enhancing a phenomenon or process and particle assembling into hierarchical structures, as well as formulation and the administration of drugs. Synergistic approaches originating from different disciplines and technologies, and interaction between the research providers and users in this field, are encouraged.