• DOI:10.3791/58661
• Corpus ID: 195756584

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light.

@article{Fang2019CO2PT,
  title={CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light.},
  author={Xiaoxiang Fang and Zhihong Gao and Hanfeng Lu and Qiulian Zhu and Zekai Zhang},
  journal={Journal of visualized experiments : JoVE},
  year={2019},
  volume={148}
}

• Xiaoxiang Fang, Zhihong Gao, +2 authors Zekai Zhang
• Published 12 June 2019
• Chemistry, Physics
• Journal of visualized experiments : JoVE

We demonstrate a method for the enhancement of CO2 photoreduction. As the driving force of a photocatalytic reaction is from solar light, the basic idea is to use concentration technology to raise the incident solar light intensity. Concentrating a large-area light onto a small area cannot only increase light intensity, but also reduce the catalyst amount, as well as the reactor volume, and increase the surface temperature. The concentration of light can be realized by different devices. In this manuscript, it is realized by a Fresnel lens. The light penetrates the lens and is concentrated on a disc-shaped catalyst. The results show that both the reaction rate and the total yield are efficiently increased. The method can be applied to most CO2 photoreduction catalysts, as well as to similar reactions with a low reaction rate at natural light.