Fabrication of Mechanically Alloyed Super Duplex Stainless Steel Powder-Modified Carbon Paste Electrode for the Determination of Methylene Blue by the Cyclic Voltammetry Technique.

Rayappa Shrinivas Mahale, Vinaykumar Rajashekar, Shamanth Vasanth, Sharath Peramenahalli Chikkegowda, Shashanka Rajendrachari, Vutukuru Mahesh

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Article in ACS omega, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Rayappa Shrinivas MahaleSchool of Mechanical Engineering, REVA University, Bengaluru 560064, Karnataka, India.

Vinaykumar RajashekarDepartment of Electronics and Communication Engineering, Nitte Meenakshi Institute of Technology, Bengaluru 560064, Karnataka, India.

Shamanth VasanthSchool of Mechanical Engineering, REVA University, Bengaluru 560064, Karnataka, India.

Sharath Peramenahalli ChikkegowdaDepartment of Electronics and Communication Engineering, Faculty of Engineering and Technology, JAIN Deemed to be University, Bengaluru 562112, Karnataka, India.

Shashanka RajendrachariDepartment of Metallurgical and Materials Engineering, BARTIN University, 74100 Bartin, Turkey.ORCID https://orcid.org/0000-0002-6705-763X

Vutukuru MaheshMechanical Engineering, SR University, Warangal 506371, Telangana, India.

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6 · The paper itself

Abstract

Alloys with an equal balance of ferrite and austenite provide super duplex stainless steel (DSS) with enhanced strength and corrosion resistance. This study utilized mechanical alloying to produce nanostructured super duplex stainless steel powders for the identification of methylene blue dye in wastewater. High-energy particle grinding was employed to create the SAF-2507 DSS powders. To electrochemically oxidize methylene blue dye in wastewater, a modified carbon paste electrode (DSS-MCPE) was developed. Methylene blue, a water-soluble cationic colorant extensively used in the paper, pulp, and textile industries, poses a threat to human health and water supplies when improperly disposed of. DSS-MCPE demonstrated a significant current response, indicating its capability to detect methylene blue dye in a pH range of 6-8. The experiment revealed that 2 mg of DSS-MCPE produced a maximum current response of 72.22 μA, facilitating the effective electrooxidation of methylene blue dye in wastewater. Furthermore, the investigation demonstrated that the active surface area of the 2 mg of DSS-MCPE (0.478 cm

Identifiers

PMID38463296

DOI10.1021/acsomega.3c09163

PMCPMC10918683

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