Enhanced bezafibrate degradation and power generation via the simultaneous PMS activation in visible light photocatalytic fuel cell

2021 ◽  
pp. 117800
Author(s):  
Xiangyu Chen ◽  
Juanjuan Yao ◽  
Hongsen Dong ◽  
Mingjian Hong ◽  
Naiyun Gao ◽  
...  
Nanomaterials ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 210
Author(s):  
Dong Liu ◽  
Chunling Li ◽  
Congyue Zhao ◽  
Er Nie ◽  
Jianqiao Wang ◽  
...  

TiO2 develops a higher efficiency when doping Bi into it by increasing the visible light absorption and inhibiting the recombination of photogenerated charges. Herein, a highly efficient Bi doped TiO2 photoanode was fabricated via a one-step modified sol-gel method and a screen-printing technique for the anode of photocatalytic fuel cell (PFC). A maximum degradation rate of 91.2% of Rhodamine B (RhB) and of 89% after being repeated 5 times with only 2% lost reflected an enhanced PFC performance and demonstrated an excellent stability under visible-light irradiation. The excellent degradation performance was attributed to the enhanced visible-light response and decreased electron-hole recombination rate. Meanwhile, an excellent linear correlation was observed between the efficient photocurrent of PFC and the chemical oxygen demand of solution when RhB is sufficient.


2019 ◽  
Vol 821 ◽  
pp. 366-371
Author(s):  
Sze Mun Lam ◽  
Joo Kheng Ooi ◽  
Ming Wei Kee ◽  
Jin Chung Sin

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.


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