A Perspective on the Flame Spray Synthesis of Photocatalyst Nanoparticles
Open Access
- 30 July 2013
- Vol. 6 (8), 3194-3212
- https://doi.org/10.3390/ma6083194
Abstract
The synthesis of functional nanoparticles via one-step flame spray pyrolysis (FSP), especially those of catalytic nature, has attracted the interests of scientists and engineers, as well as industries. The rapid and high temperature continuous synthesis yields nanoparticles with intrinsic features of active catalysts, that is, high surface area and surface energetics. For these reasons, FSP finds applications in various thermally inducible catalytic reactions. However, the design and synthesis of photocatalysts by FSP requires a knowledge set which is different from that established for thermal catalysts. Unknown to many, this has resulted in frustrations to those entering the field unprepared, especially since FSP appears to be an elegant tool in synthesising oxide nanoparticles of any elemental construct. From simple oxide to doped-oxide, and mixed metal oxide to the in situ deposition of noble metals, this Perspective gives an overview on the development of photocatalysts made by FSP in the last decade that led to a better understanding of the design criteria. Various challenges and opportunities are also highlighted, especially those beyond simple metal oxides, which perhaps contain the greatest potential for the exploitation of photocatalysts design by FSP.Keywords
This publication has 82 references indexed in Scilit:
- Progress in Heterogeneous Photocatalysis: From Classical Radical Chemistry to Engineering Nanomaterials and Solar ReactorsThe Journal of Physical Chemistry Letters, 2012
- What is Degussa (Evonik) P25? Crystalline composition analysis, reconstruction from isolated pure particles and photocatalytic activity testJournal of Photochemistry and Photobiology A: Chemistry, 2010
- Fabrication of screen‐printing pastes from TiO2 powders for dye‐sensitised solar cellsProgress In Photovoltaics, 2007
- A comparison of mixed phase titania photocatalysts prepared by physical and chemical methods: The importance of the solid–solid interfaceJournal of Molecular Catalysis A: Chemical, 2007
- Explaining the Enhanced Photocatalytic Activity of Degussa P25 Mixed-Phase TiO2 Using EPRThe Journal of Physical Chemistry B, 2003
- Low-Cost Nanopowders for Phosphor and Laser Applications by Flame Spray PyrolysisMaterials Science Forum, 2000
- Electron Source in Photoinduced Hydrogen Production on Pt-supported TiO2 ParticlesThe Journal of Physical Chemistry B, 1999
- Flame aerosol synthesis of ceramic powdersProgress in Energy and Combustion Science, 1998
- Heterogeneous photocatalytic synthesis of methane from acetic acid - new Kolbe reaction pathwayJournal of the American Chemical Society, 1978
- The “in-flame-reaction” method for Al2O3 aerosol formationJournal of Aerosol Science, 1977