Piezo-photocatalytic Fuel Cell with Atomic Fe@MoS2 on CFC Helical Electrode Has Enhanced Peroxymonosulfate Activation, Pollutant Degradation and Power Generation

2021 ◽  
pp. 120953
Author(s):  
Lin Xu ◽  
Lifen Liu
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Pollutant Degradation ◽  
Photocatalytic Fuel Cell ◽  
Helical Electrode

Photocatalytic Fuel Cell Using TiO2/ZnO/Zn Photoanode for Greywater and Bacteria Abatements with Power Generation Concomitantly

2019 ◽  
Vol 821 ◽  
pp. 366-371
Author(s):  
Sze Mun Lam ◽  
Joo Kheng Ooi ◽  
Ming Wei Kee ◽  
Jin Chung Sin
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Uv Light ◽  
Antibacterial Properties ◽  
Water Source ◽  
Clean Energy ◽  
Chemical Oxidation ◽  
Open Circuit ◽  
Photocatalytic Fuel Cell ◽  
Electrical Generation

Recycling of optional water source especially greywater and energy recovery from effluent is garnering impetus owing to clean water scarcity and energy crisis. In current work, photocatalytic fuel cell (PFC) utilizing a TiO2/ZnO/Zn photoanode and a CuO/Cu photocathode was developed for efficient greywater treatment and power generation. The photoelectrodes were measured by field-emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX) and photoluminescence (PL) measurements. Using 2 layers of TiO2/ZnO on Zn film, chemical oxidation demand (COD) removal efficiency had achieved 73% in the UV light-activated PFC system. The electrical generation was concomitantly found, in which the open-circuit voltage (Voc), short-current density (Jsc) and maximum power density (Pmax) were 634 mV, 0.1612 mA cm-2 and 0.0257 mW cm-2, respectively. The PFC has also revealed high antibacterial activity towards and Escherichia coli (E. coli), highlighting its potential photocatalytic and antibacterial properties for greywater reused and clean energy production.

scholarly journals Membraneless Photocatalytic Fuel Cell with Double Photoelectrodes for Simultaneous Electricity Generation and Pollutant Degradation

2022 ◽  
Author(s):  
Mingjuan Huang ◽  
Chunhong Zhou ◽  
Ruiting Wen ◽  
Jiuying Tian ◽  
Wenduo Huang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Visible Light ◽  
Indium Tin Oxide ◽  
Electricity Generation ◽  
Short Circuit ◽  
Electric Energy ◽  
Short Circuit Current ◽  
Pollutant Degradation ◽  
Good Efficiency ◽  
Photocatalytic Fuel Cell

Abstract Environmental pollution and new energy development have become topics of increasing concern. Herein, a visible-light-driven photocatalytic fuel cell (PFC) with double photoelectrodes was constructed for simultaneous electricity generation and pollutant degradation, in which graphitic carbon nitride (g-C3N4) generated on W/WO3 nanorod arrays (W/WNR/g-C3N4) was used as the photoanode and Fe3+-doped CuBi2O4 thin film on indium tin oxide (ITO) conductive glass (ITO/CBFeO) was used as the photocathode. The experimental results showed that the WO3/g-C3N4 Z-scheme structure and one-dimensional WNR rod-like structure could effectively suppress the recombination of photogenerated charge carriers and enable W/WNR/g-C3N4 to present a good photocurrent response under visible light irradiation. The Fermi level mismatch between the W/WNR/g-C3N4 photoanode and ITO/CBFeO photocathode could improve the transfer of photogenerated electrons from the photoanode to the photocathode across the external circuit, enabling the constructed PFC to afford high electricity output and good efficiency for pollutant degradation. The short-circuit current density and maximum power density could reach 620 μA cm−2 and 110 μW cm−2, respectively, while the degradation ratio of oxytetracycline reached 97.6% in 90 min. Therefore, the proposed PFC system provides a new way to generate electric energy and degrade pollutants simultaneously.

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