Eco-Friendly ZnO/CuO/Ni Nanocomposites: Enhanced photocatalytic dye adsorption and hydrogen evolution for sustainable energy and water purification

IF 1.7 4区材料科学 Q3 CRYSTALLOGRAPHY Journal of Crystal Growth Pub Date : 2024-11-05 DOI:10.1016/j.jcrysgro.2024.127984

Souhaila Meneceur , Salah Eddine Laouini , Hamdi Ali Mohammed , Abderrhmane Bouafia , Chaima Salmi , Johar Amin Ahmed Abdullah , Fahad Alharthi

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Abstract

Nanomaterials and nanocomposites, known for their unique properties, are increasingly vital in diverse fields such as energy and environmental remediation. This study presents biogenically synthesized ZnO/CuO/Ni nanocomposites using Mentha Pulegium L. leaf extract. The investigation focuses on their applications in photocatalytic dye adsorption and hydrogen evolution. Characterization via XRD, FTIR spectroscopy, SEM, and UV–visible spectroscopy confirms the nanocomposites’ semiconducting nature with a narrow bandgap energy of 2.46 eV. Structural analysis reveals cubic crystal structures with an average crystallite size of 29.1 nm. Under solar irradiation, the nanocomposites exhibit exceptional photocatalytic activity, degrading 99 % of 4-BP and 98 % of TB. Moreover, they achieve a notable hydrogen evolution rate of 5.79 mmol/g over six hours. These results underscore the efficacy of ZnO/CuO/Ni nanocomposites as catalysts for sustainable energy and water purification. Employing Mentha Pulegium L. extract for environmentally friendly synthesis enhances their photocatalytic properties, offering a cost-effective route to sustainable energy and clean water technologies.

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生态友好型 ZnO/CuO/Ni 纳米复合材料：增强光催化染料吸附和氢进化，实现可持续能源和水净化

纳米材料和纳米复合材料以其独特的性能而闻名，在能源和环境修复等多个领域日益重要。本研究介绍了利用薄荷叶提取物生物合成的 ZnO/CuO/Ni 纳米复合材料。研究重点是其在光催化染料吸附和氢进化中的应用。通过 XRD、傅立叶变换红外光谱、扫描电镜和紫外-可见光谱进行表征，证实了纳米复合材料的半导体性质，其带隙能为 2.46 eV。结构分析表明，纳米复合材料具有立方晶体结构，平均结晶尺寸为 29.1 纳米。在太阳光照射下，纳米复合材料表现出卓越的光催化活性，能降解 99% 的 4-BP 和 98% 的 TB。此外，纳米复合材料在 6 小时内的氢进化率高达 5.79 mmol/g。这些结果凸显了 ZnO/CuO/Ni 纳米复合材料作为可持续能源和水净化催化剂的功效。使用薄荷提取物进行环境友好型合成可增强其光催化性能，为可持续能源和清洁水技术提供了一条具有成本效益的途径。

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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.