AUTHOR=Dong Fan , Zhang Yuxin , Zhang Sen TITLE=Editorial: Photocatalysis for Environmental Applications JOURNAL=Frontiers in Chemistry VOLUME=7 YEAR=2019 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2019.00303 DOI=10.3389/fchem.2019.00303 ISSN=2296-2646