AUTHOR=Wang Shifa TITLE=Editorial: Micro-nano optics and photocatalysis materials, devices, and applications JOURNAL=Frontiers in Materials VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2022.978059 DOI=10.3389/fmats.2022.978059 ISSN=2296-8016