Facile green synthesis of ZnO/ZrO2 nanocomposite for photocatalytic degradation and chromium (VI) reduction

IF 1.7 4区材料科学 Q3 CRYSTALLOGRAPHY

Journal of Crystal Growth Pub Date : 2024-11-22 DOI:10.1016/j.jcrysgro.2024.128009

H.C. Sathisha , Anitha , G. Krishnamurthy , G. Nagaraju

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Abstract

In the field of nanoscience, using plant materials to create nanoparticles (NPs) is becoming growing in popularity and offers a number of benefits over physicochemical techniques. The green combustion approach effectively synthesized ZnO/ZrO₂ nanocomposite (NCs) using powdered Butea monosperma (BM) leaf as the green fuel. The nature of NCs was confirmed through (X-ray Diffraction) XRD revealed that presence of hexagonal ZnO and cubic of ZrO₂ phase. The morphology of NCs as seen by (Scanning Electron Microscopy) SEM and (Transmission Electron Microscopy) TEM reveals a fair distribution and non-uniform spherical shape. (Energy Dispersive X-Ray Analysis) EDAX pattern indicates the presence of zinc, zirconium and oxygen components. (Fourier Transform Infrared Spectroscopy) FT-IR spectrum obtained the metal–oxygen bonding in NCs. By applying the Tauc relation to calculate the optical energy band gap value of the sample is 3.34 eV. UV light is used to conduct the investigation of photocatalytic degradation of methylene blue (MB) dye. The NCs have superior degradation efficiency up to 99 % dye degradation is performed in 150 min. Furthermore, NCs exhibit a hazardous chromium (VI) decrease of up to 62 %. The collected results demonstrated that ZnO/ZrO₂ NCs are the best photocatalyst for MB degradation and chromium reduction.

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用于光催化降解和还原铬 (VI) 的 ZnO/ZrO2 纳米复合材料的简便绿色合成方法

在纳米科学领域，利用植物材料制造纳米粒子（NPs）正变得越来越受欢迎，与物理化学技术相比，它具有许多优点。利用单叶榨菜（BM）粉末作为绿色燃料，绿色燃烧方法有效地合成了 ZnO/ZrO2 纳米复合材料（NCs）。通过（X 射线衍射）X 射线衍射显示出六方氧化锌和立方氧化锆相的存在，从而确认了纳米复合材料的性质。通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）观察 NCs 的形态，发现其分布均匀且呈非均匀球形。(能量色散 X 射线分析）EDAX 图谱显示存在锌、锆和氧成分。(傅立叶变换红外光谱）傅立叶变换红外光谱显示了 NCs 中的金属氧键。应用陶氏关系计算出样品的光能带隙值为 3.34 eV。利用紫外光对亚甲基蓝（MB）染料进行光催化降解研究。NCs 具有卓越的降解效率，在 150 分钟内就能降解高达 99% 的染料。此外，NCs 对有害铬 (VI) 的降解率高达 62%。收集到的结果表明，ZnO/ZrO2 NCs 是降解甲基溴和减少铬的最佳光催化剂。

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来源期刊

Journal of Crystal Growth 化学-晶体学

CiteScore

3.60

自引率

11.10%

发文量

373

审稿时长

65 days

期刊介绍： The journal offers a common reference and publication source for workers engaged in research on the experimental and theoretical aspects of crystal growth and its applications, e.g. in devices. Experimental and theoretical contributions are published in the following fields: theory of nucleation and growth, molecular kinetics and transport phenomena, crystallization in viscous media such as polymers and glasses; crystal growth of metals, minerals, semiconductors, superconductors, magnetics, inorganic, organic and biological substances in bulk or as thin films; molecular beam epitaxy, chemical vapor deposition, growth of III-V and II-VI and other semiconductors; characterization of single crystals by physical and chemical methods; apparatus, instrumentation and techniques for crystal growth, and purification methods; multilayer heterostructures and their characterisation with an emphasis on crystal growth and epitaxial aspects of electronic materials. A special feature of the journal is the periodic inclusion of proceedings of symposia and conferences on relevant aspects of crystal growth.