Electrochemical properties of treated marcasite sludge from jewelry production process

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-20 DOI:10.1016/j.matlet.2025.138427

Kanyapat Teekayupak , Nipapan Ruecha , Sittinun Tawkaew , Nithiwach Nawaukkaratharnant

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引用次数: 0

Abstract

The current trend is towards recycling and reuse of industrial solid waste to mitigate reliance on landfills. This research investigates the recycling of marcasite sludge (MS) from the jewelry industry for its potential application in electrochemical devices, particularly sensors. It is composes of pyrite (FeS₂), cubic zirconia, and szomolnokite (FeSO₄⋅H₂O). Hydrothermal treatment at 180 °C for 4 h with varying amounts of sodium thiosulfate pentahydrate (Na₂S₂O₃⋅5H₂O) was employed to convert sulfate compounds in the sludge to FeS₂, followed by calcination to remove excess sulfur. X-ray diffraction (XRD) analysis confirmed the complete conversion of FeSO₄⋅H₂O to FeS₂. The electrochemical capacitance of a treated MS (TMS) modified screen-printed carbon electrode (SPCE) was investigated. The results show an enhancement of the electrochemical capacitance of SPCE after modification with TMS. This study explores the potential for recycling waste in high-value electrochemical applications.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive