One-pot facile synthesis of ruthenium nanoparticles with Co3O4 support at room temperature to enhance the catalytic efficiency in 4-nitrophenol reduction

IF 6.3 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2025-05-09 DOI:10.1016/j.jwpe.2025.107866

Merve Yelboğa , Merve Akbayrak

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Abstract

This study reports the synthesis of ruthenium-doped Co₃O₄ nanoparticles (Ru/Co₃O₄ NPs) via a one-pot, room-temperature method and the usage for 4-Nitrophenol (4-NP) reduction reaction. The catalyst was characterized by advanced analytical techniques such as transmission electron microscopy (TEM), field emission scanning electron microscopy (FE–SEM), energy-dispersive X-ray spectroscopy (EDX), inductively coupled plasma optical emission spectrometry (ICP-OES), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The reaction conditions were optimized by studying the effects of catalyst amounts, concentration of 4-NP and NaBH₄ on the reaction. Ru/Co₃O₄ catalyst exhibits high performance in the reduction of 4-NP to 4-aminophenol (4-AP). Ru/Co₃O₄ NPs achieve 0.05 s⁻¹ reaction rate and 159.03 h⁻¹ turnover frequency value. The catalyst completes full conversion of 0.08 mM and 0.40 mM solution of 4-NP within 60 s and 110 s, respectively. The Ru/Co₃O₄ NPs, containing just 0.05 mg of Ru, demonstrated excellent efficiency by converting 10.0 mg of 4-NP in 6.5 mL of water which is far exceeding the permissible limit of 10 μg/L. Ru/Co₃O₄ NPs also demonstrate excellent stability and retain its activity up to 150 cycles which shows its potential for long-term use in sustainable environmental applications. This enhanced catalytic performance exhibits its potential for rapid and effective remediation of nitroaromatic contaminated wastewater.

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室温下以Co3O4为载体的纳米钌一锅简易合成提高4-硝基苯酚还原的催化效率

本研究报道了室温一锅法制备钌掺杂的Co3O4纳米颗粒（Ru/Co3O4 NPs），并将其用于4-硝基苯酚（4-NP）还原反应。采用先进的分析技术，如透射电子显微镜（TEM）、场发射扫描电子显微镜（FE-SEM）、能量色散x射线能谱（EDX）、电感耦合等离子体光学发射光谱（ICP-OES）、x射线衍射（XRD）和x射线光电子能谱（XPS）对催化剂进行了表征。通过考察催化剂用量、4-NP浓度和NaBH4浓度对反应的影响，优化了反应条件。Ru/Co3O4催化剂在将4-NP还原为4-氨基酚（4-AP）方面表现出优异的性能。Ru/Co3O4 NPs的反应速率为0.05 s−1，周转频率为159.03 h−1。催化剂分别在60秒和110秒内完成0.08 mM和0.40 mM 4-NP溶液的完全转化。Ru/Co3O4 NPs仅含0.05 mg Ru，在6.5 mL水中可转化10.0 mg 4-NP，远远超过10 μg/L的允许限度。Ru/Co3O4 NPs也表现出优异的稳定性，并保持其活性长达150次循环，这表明其在可持续环境应用中的长期使用潜力。这种增强的催化性能显示了其快速有效地修复硝基芳烃污染废水的潜力。

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来源期刊

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies