Effect of Native Defects on Photocatalytic Properties of ZnO

Citations Over TimeTop 10% of 2011 papers

Abstract

We have studied the photocatalytic activity of ZnO tetrapods, ZnO powder, and different ZnO nanoparticles. While nanoparticles with small particle size exhibited higher Brunauer–Emmett–Teller (BET) surface area, tetrapods exhibited significantly higher photocatalytic activity for degradation of different dyes. Degradation of four different dyes has been achieved for at least 5 times shorter time for tetrapods compared to nanoparticles (20 nm average particle size). Different ZnO samples have been characterized by variable-temperature photoluminescence and time-resolved photoluminescence measurements, and the relationship between optical properties, native defects, production of the reactive oxygen species, and photocatalytic dye degradation has been discussed.

Related Papers

• → Photocatalysis: A novel approach to efficient demulsification(2015)29 cited
• → La2MgTiO6:Bi3+/Mn4+ photoluminescence materials: Molten salt preparation, Bi3+ → Mn4+ energy transfer and thermostability(2020)21 cited
• → Photoluminescence of porous Si, oxidized then deoxidized chemically(1992)109 cited
• → Study of delocalized and localized states in ZnSeO layers with photoluminescence, micro-photoluminescence, and time-resolved photoluminescence(2019)7 cited
• → Ballistic effect and new concept of Si wire photoluminescence(2003)1 cited