Estimating Anti-Viral Performance of Photocatalytic Materials
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  • Release Date: 2024-09-27
  • photocatalysis
  • SARS-CoV-2
  • COVID-19
  • anti-viral performance
  • screening
  • air purification
  • acetaldehyde decomposition test
Video Introduction

This video is adapted from 10.3390/catal14030163

The coronavirus disease 2019 pandemic has increased the demand for anti-viral products. Photocatalytic materials are used to develop coatings and air purifiers that inactivate severe acute respiratory syndrome coronavirus 2. However, the methods for evaluating the anti-viral performance of photocatalytic materials are time-consuming. To address this problem, herein, the authors propose a screening test for the anti-viral performance of photocatalytic materials based on the ‘acetaldehyde decomposition test’—an air purification efficiency test used to evaluate the decomposition performance of photocatalytic materials. This test is suitable for screening multiple samples and conditions in a short period. The temporal variation in the acetaldehyde concentration was approximated using an exponential function, similar to the temporal variation in the viral infection values. Thereafter, the slope of the regression line for the acetaldehyde concentration over time was used as an indicator in the screening tests. When the anti-viral performance and acetaldehyde decomposition tests were conducted on the same photocatalytic material, a correlation was observed between the slopes of the regression lines. Overall, the proposed screening test shows good potential for evaluating the anti-viral performance of photocatalytic materials.

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Ochiai, T.; Nagai, T.; Hamada, K.; Tobe, T.; Aoki, D.; Sunada, K.; Ishiguro, H. Estimating Anti-Viral Performance of Photocatalytic Materials. Encyclopedia. Available online: https://encyclopedia.pub/video/video_detail/1373 (accessed on 13 October 2024).
Ochiai T, Nagai T, Hamada K, Tobe T, Aoki D, Sunada K, et al. Estimating Anti-Viral Performance of Photocatalytic Materials. Encyclopedia. Available at: https://encyclopedia.pub/video/video_detail/1373. Accessed October 13, 2024.
Ochiai, Tsuyoshi, Takeshi Nagai, Kengo Hamada, Tomoyuki Tobe, Daisuke Aoki, Kayano Sunada, Hitoshi Ishiguro. "Estimating Anti-Viral Performance of Photocatalytic Materials" Encyclopedia, https://encyclopedia.pub/video/video_detail/1373 (accessed October 13, 2024).
Ochiai, T., Nagai, T., Hamada, K., Tobe, T., Aoki, D., Sunada, K., & Ishiguro, H. (2024, September 27). Estimating Anti-Viral Performance of Photocatalytic Materials. In Encyclopedia. https://encyclopedia.pub/video/video_detail/1373
Ochiai, Tsuyoshi, et al. "Estimating Anti-Viral Performance of Photocatalytic Materials." Encyclopedia. Web. 27 September, 2024.
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