Photo/Bio‐Electrochemical Systems for Environmental Remediation and Energy Harvesting

Yang, Fan; Ke, Zunjian; Li, Zhida; Abboud, Zeinab; Yamamoto, Nobuyuki; Xiao, Xin; Gu, Jing

doi:10.1002/cssc.202000203

Cited by 12 publications

(8 citation statements)

References 136 publications

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“…In this case, a large portion of microorganisms in the culture solution that keeps away from the electrode interface cannot be utilized effectively. Recent studies have proved that nanoparticles dispersing on or inside the cell membrane participate in the EET process. − More importantly, besides stand-alone bio-electrocatalysis, photoelectrons delivered from semiconductive metal compounds can act as a supplementary electron source to further boost EET. ,, Therefore, hybrid microbial photoelectrochemical systems that combine microorganisms with semiconductor photocatalysts to obtain solar energy are of great significance for the development of clean energy. − Although some familiar inorganic semiconductors such as TiO 2 , CdS, and α-Fe 2 O 3 have been successfully applied to microbial photoelectrochemical systems, there are few reports on ferric acid-based photosensitive compounds.…”

Section: Introductionmentioning

confidence: 99%

Photoactive Manganese Ferrite-Modified Bacterial Anode to Simultaneously Boost Both Mediated and Direct Electron Transfer Processes in Microbial Fuel Cells

Shi

et al. 2022

ACS Sustainable Chem. Eng.

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Photomicrobial fuel cells can efficiently improve the power density of microbial fuel cells (MFCs), but bimetallic spinel ferrite photoactive material-based microbial devices have not been investigated yet. Herein, a dissimilatory iron-reducing bacterium, Shewanella putrefaciens CN32 (S. putrefaciens CN32), is selected as a model bacterium due to its possible enhanced affinity with iron-containing photoactive materials. Three bimetallic spinel ferrite nanoparticles, cobalt ferrite (CoFe2O4), nickel ferrite (NiFe2O4), and manganese ferrite (MnFe2O4), were used to modify the surface of S. putrefaciens CN32 for photo-MFCs, showing that MnFe2O4 has the best catalytic effect. Results reveal that these nanoparticle coatings on bacteria not only enhance direct electron transfer mediated by outer membrane c-type cytochromes (OMCs) while serving as conductive paths for charge transport between bacteria and the electrode surface but also significantly promote bacterial growth for increased flavin production from S. putrefaciens CN32. In addition, the extracellular electron transfer can be greatly accelerated with the assistance of photosensitive MnFe2O4 nanoparticles under visible light. This work demonstrates that the photomicrobial anode can simultaneously enhance both mediated and direct electron transfer processes and offers universal significance for photo-bio-electrocatalysis.

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Section: Introductionmentioning

confidence: 99%

Photoactive Manganese Ferrite-Modified Bacterial Anode to Simultaneously Boost Both Mediated and Direct Electron Transfer Processes in Microbial Fuel Cells

Shi

et al. 2022

ACS Sustainable Chem. Eng.

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“…If the incident light intensity is constant, the current density will increase with a higher bias. 16…”

Section: Working Configurations Of Pec Systemsmentioning

confidence: 99%

“…If the incident light intensity is constant, the current density will increase with a higher bias. 16 During the PEC oxidation of biomass derivatives, the active species driving the substrate in the reaction show more variations compared to water splitting. In addition to the direct contact of photogenerated holes with organic substrates, the hydroxyl radicals ( • OH) generated by the splitting of water and the superoxide radicals ( • O 2 − ) generated by the reduction of soluble oxygen exhibit equally strong oxidative properties, although the oxidation selectivity of • OH is relatively low.…”

Section: Reaction Mechanism Of Pecmentioning

confidence: 99%

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Sacrifice and valorization of biomass to realize energy exploitation and transformation in a photoelectrochemical way

Tang,

Liu,

Zhang

et al. 2023

Green Chem.

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“…The goal is to increase the safety and ease of production of DSSCs (by replacing a liquid electrolyte based on organic solvents with a solid conduction system), [56][57][58][59][60] as well as to reduce the cost of the raw materials used for cells fabrication (by replacing platinum with less expensive alternative and carrying out accurate life cycle assessment-LCA-analysis). [61][62][63][64][65] The scientific community has proposed numerous solutions to these purposes, which are summarized in various reviews present in the literature. [66][67][68][69][70] In this sector, poly(3,4-ethylenedioxythiophene) (PEDOT) plays an important role.…”

Section: Introductionmentioning

confidence: 99%

Poly(3,4‐ethylenedioxythiophene) in Dye‐Sensitized Solar Cells: Toward Solid‐State and Platinum‐Free Photovoltaics

Fagiolari

Varaia

Mariotti

et al. 2021

Advanced Sustainable Systems

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Dye-sensitized solar cells (DSSCs) have become a strong reality in the field of hybrid photovoltaics. Their ability to operate in diffused light conditions and the possibility of fabrication of modules bearing different colors make these cells attractive for different applications, for example, wearable electronics, building integration, etc. This review focuses on one of the compounds rather often studied for DSSCs, namely, poly(3,4-ethylenedioxythiophene) (PEDOT). It has been introduced both as a substitute for liquid electrolytes, in order to facilitate cells fabrication and increase their durability, and as an alternative to platinum for counter electrodes. The literature counts many studies on PEDOT and this manuscript collects them following a classification criterion based on applications, functionalization/doping strategies, and deposition methods. In addition to comparing the performance obtained for PEDOT-based systems with those of traditional cells (i.e., assembled with liquid iodine-based electrolytes and platinum cathodes), the manuscript also offers a brief analysis of costs and sustainability aspects, built up on experimental data found in the literature; this latter is expected to constitute a precious resource to catalyze the attention of the scientific community on relevant and preliminary aspects when figuring out the industrial scalability of newly proposed cell components.

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Photo/Bio‐Electrochemical Systems for Environmental Remediation and Energy Harvesting

Abstract: This is the author manuscript accepted for publication and has undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record.

Cited by 12 publications

References 136 publications

Photoactive Manganese Ferrite-Modified Bacterial Anode to Simultaneously Boost Both Mediated and Direct Electron Transfer Processes in Microbial Fuel Cells

Photoactive Manganese Ferrite-Modified Bacterial Anode to Simultaneously Boost Both Mediated and Direct Electron Transfer Processes in Microbial Fuel Cells

Sacrifice and valorization of biomass to realize energy exploitation and transformation in a photoelectrochemical way

Poly(3,4‐ethylenedioxythiophene) in Dye‐Sensitized Solar Cells: Toward Solid‐State and Platinum‐Free Photovoltaics

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