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Description
In the last decades, photocatalysis has been extensively studied for applications in air and water treatment, water splitting, and antimicrobial purposes. Despite its potential, the practical application of photocatalysis remains limited by low photocatalytic efficiency and poor stability. Considerable efforts have been devoted to enhancing the photocatalytic to enhance charge transport under sunlight irradiation and prevent electron-hole pair recombination. However, the development of high-efficiency photocatalysts necessitates a thorough understanding of the photophysical processes involved, including: i) Photon absorption and electron-hole pair generation ii) Migration of charge carriers to the surface iii) Semiconductor-electrolyte interactions. In this study, we propose a computational approach to investigate these physical phenomena through simulations. We focus on the impact of carbon particle distribution within a TiO2:C composite material on charge transport, we analyzed three possible distributions of carbon particles: on the surface, within the structure, and in both locations. We used wxAMPS software to simulate charge transport and estimate surface current density for photocatalytic applications. Our results indicate that the optical properties of carbon particles significantly affect the generation of charge carriers on the surface and the best distribution of carbon particles occurred when they are inside the TiO2:C composite structure. Furthermore, the distribution of carbon nanoparticles plays a crucial role in enhancing charge carrier generation. This work highlights the importance of optimizing the distribution of carbon and TiO2 particles and demonstrates the utility of wxAMPS software for simulating and understanding charge transport in photocatalytic systems.
This work was supported by
This work was supported by: SIP 20241502
Reference
A new solar cell simulator: WxAMPS,Journal Article, (2011), DOI:10.1109/PVSC.2011.6186517.
| Keywords | Photocatalysis, wxAMPS, carbon-TiO2 composites, simulation photocatalysis, distribution of carbon particles |
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