Microbial fuel cells (MFCs) have attracted a great deal of attention as a promising technology for recovering electricity from organic substances by harnessing the metabolic activities of microorganisms. The objective of this study is to assess the efficacy of a LiTa0.5Nb0.5O3/g-C3N4 (LTN/g-C3N4) heterojunction as a photocathode catalyst within a single-chamber microbial fuel cell operating under both light irradiation and dark conditions. X-Ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and Energy dispersive X-Ray spectroscopy (EDS) were used to conduct a comprehensive analysis of the composite catalyst, revealing its exceptional purity and unique properties. After 120 h of exposure to visible light, the maximal power density of the MFC containing LTN/g-C3N4-modified carbon cloth was determined to be 667.7 mW/m(3). The power density achieved with the presence of light was approximately three times greater than the power density obtained without light in the MFC (235.64 mW/m(3)). In addition, the study determined that the removal efficiencies of chemical oxygen demand (COD) were 88.4% and 66.5% when exposed to light and in the absence of light, respectively. These findings highlight the potential of the non-precious LTN/g-C3N4 photocatalyst as a viable alternative for effective wastewater treatment and power generation in microbial fuel cells with a single chamber configuration.
Maximizing power generation in single-chamber microbial fuel cells: the role of LiTa0.5Nb0.5O3/g-C3N4 photocatalyst / Lazar, Nour-eddine; Mazkad, Driss; Kharti, Hamza; Yalcinkaya, Fatma; Pietrelli, Andrea; Ferrara, Vincenzo; Touach, Noureddine; Benzaouak, Abdellah; Mahi, Mohammed El; Lotfi, El Mostapha. - In: MATERIALS FOR RENEWABLE AND SUSTAINABLE ENERGY. - ISSN 2194-1459. - 13:2(2024), pp. 209-218. [10.1007/s40243-024-00259-6]
Maximizing power generation in single-chamber microbial fuel cells: the role of LiTa0.5Nb0.5O3/g-C3N4 photocatalyst
Lazar, Nour-eddine;Yalcinkaya, Fatma;Pietrelli, AndreaMembro del Collaboration Group
;Ferrara, VincenzoMembro del Collaboration Group
;
2024
Abstract
Microbial fuel cells (MFCs) have attracted a great deal of attention as a promising technology for recovering electricity from organic substances by harnessing the metabolic activities of microorganisms. The objective of this study is to assess the efficacy of a LiTa0.5Nb0.5O3/g-C3N4 (LTN/g-C3N4) heterojunction as a photocathode catalyst within a single-chamber microbial fuel cell operating under both light irradiation and dark conditions. X-Ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and Energy dispersive X-Ray spectroscopy (EDS) were used to conduct a comprehensive analysis of the composite catalyst, revealing its exceptional purity and unique properties. After 120 h of exposure to visible light, the maximal power density of the MFC containing LTN/g-C3N4-modified carbon cloth was determined to be 667.7 mW/m(3). The power density achieved with the presence of light was approximately three times greater than the power density obtained without light in the MFC (235.64 mW/m(3)). In addition, the study determined that the removal efficiencies of chemical oxygen demand (COD) were 88.4% and 66.5% when exposed to light and in the absence of light, respectively. These findings highlight the potential of the non-precious LTN/g-C3N4 photocatalyst as a viable alternative for effective wastewater treatment and power generation in microbial fuel cells with a single chamber configuration.File | Dimensione | Formato | |
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