Taguchi’s optimization of process parameters for effective degradation of Rhodamine B and energy harvesting through photocatalytic fuel cell with dual photoelectrodes

IF 2.8 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Materials Science: Materials in Electronics Pub Date : 2025-02-05 DOI:10.1007/s10854-025-14284-2

Vaidehi G. Sonone, Ajay R. Tembhurkar

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引用次数: 0

Abstract

Rapid industrialization and urbanization are polluting water supplies due to release of untreated wastewater in water bodies. Rhodamine B (RhB) is one of the commonly found pollutants in wastewater. In this study, dual-photoelectrode Photocatalytic Fuel Cell (PFC) prepared from ZnO/TiO₂ photoanode and Cu₂O/CuO photocathode is used with Taguchi’s standard L16 Orthogonal Array to optimise RhB degradation and electricity generation. X-ray diffraction, field emission-scanning electron microscopes, energy dispersive X-ray and ultraviolet–visible diffuse reflectance spectroscopy are used for characterization of photoelectrodes. Analysis of mean revealed the maximum RhB removal of 91.77% and power density of 297.81 µA cm⁻² at pH 8, 44 W light-intensity, two number of TiO₂ layers, 550 °C calcination temperature and 300 min irradiation-time. While analysis of variation determined the percentage contribution of each process parameter in descending order for RhB degradation as pH > irradiation time > calcination temperature > number of TiO₂ layers on photoanode > light intensity. Kinetics study indicated that RhB degradation followed pseudo-first order model (kinetic constant = 0.0085 min⁻¹) at optimum conditions. While short-circuit current density (J_sc), open-circuit voltage (V_oc) and maximum power (P_max) were 283.64 µA cm⁻², 945.63 mV and 297.81 µW cm⁻², respectively. Stability analysis revealed excellent stability of photoelectrodes for RhB degradation by 4th cycle, confirming reusability of photoelectrodes in PFC.

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来源期刊

Journal of Materials Science: Materials in Electronics 工程技术-材料科学：综合

CiteScore

5.00

自引率

7.10%

发文量

1931

审稿时长

2 months

期刊介绍： The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.