Application of TiO2 nanotube arrays for bipolar photocatalytic fuel cells

doi:10.3969/j.issn.1000-5641.201922005

Abstract

Abstract: Photocatalytic fuel cell (PFC) technology is a combination of photocatalytic technology and fuel cell technology, which can degrade wastewater and generate electricity at the same time. The influence of the preparation process for photoanodes of TiO₂ Nanotube Arrays (TNAs) on its morphology and structure was explored; a positive correlation between the electrolysis time and the tube length of TNAs was confirmed by a Field Emission Scanning Electron Microscope (FESEM). We can combine TNAs with Cu₂O photoelectrodes to obtain a system with stronger photocatalytic activity, confirming the existence of a PFC synergistic effect. The optimal electrolysis process was 4 h, and the photocatalytic degradation rate of the electrode prepared by this process was more than 79% within 2 h. Analysis of the three standards showed an excellent linear correlation between the photocurrent of PFC and the chemical oxygen demand (COD); as the degradation proceeds, the mass transfer process is reduced and the correlation between the two is weakened.

Key words: photocatalytic fuel cell (PFC), TiO₂ nanotubes arrays (TNAs), diclofenac(DCF), chemical oxygen demand (COD)

CLC Number:

O469

WANG Jianqiao, LIU dong, ZHOU Jun, XI Qinghua, NIE Er, SUN Zhuo. Application of TiO₂ nanotube arrays for bipolar photocatalytic fuel cells[J]. Journal of East China Normal University(Natural Science), 2020, 2020(1): 93-102.

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Application of TiO₂ nanotube arrays for bipolar photocatalytic fuel cells

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