Active 001 Facet Exposed TiO2 Nanotubes Photocatalyst Filter for Volatile Organic Compounds Removal: From Material Development to Commercial Indoor Air Cleaner Application
By Weon, Seunghyun; Choi, Eunji; Kim, Hyejin; Kim, Jee Yeon; Park, Hee-Jin; Kim, Sae-mi; Kim, Wooyul; Choi, Wonyong
Published in Environmental Science & Technology
2018
Abstract
TiO2 nanotubes (TNT) have a highly ordered open structure that promotes the diffusion of dioxygen and substrates onto active sites and exhibit high durability against deactivation during the photocatalytic air purification. Herein, we synthesized 001 facet-exposed TiO2 nanotubes (001-TNT) using a new and simple method that can be easily scaled up, and tested them for the photocatalytic removal of volatile organic compounds (VOCs) in both a laboratory reactor and a commercial air cleaner. While the surface of TNT is mainly composed of 101 facet anatase, 001-TNT