Abstract
A novel LaMnO3 photocatalyst with perovskite structure was prepared by sol–gel combustion method. The combustion reaction mechanisms of nanocrystalline LaMnO3 powders were investigated by thermal analysis, infrared spectra, and X-ray diffraction technique. The results showed that the gels exhibited self-propagating behavior after ignition in air. Nanocrystalline LaMnO3 powders can be synthesized in one step by using sol–gel combustion synthesis. The photocatalytic activity of the LaMnO3 powders were evaluated by degradation of methyl orange (MO) in water under UV light irradiation. The results showed that the LaMnO3 powders exhibit good photocatalytic activities under UV light irradiation. The degradation percentage after 36 h on LaMnO3 powders was about 76%.
Similar content being viewed by others
Abbreviations
- MO:
-
Methyl orange
References
Holtappels P, Bagger C (2002) J Eur Ceram Soc 22:41
Nagaev EL (2001) Phys Rep 346:387
Giannakis AE, Ladavos AK, Pomonis PJ (2004) Appl Catal B 49:147
Spinicci R, Faticanti M, Marini P et al (2003) J Mol Catal A 197:147
Cimino S, Pirone R, Lisi L (2002) Appl Catal B 35:243
Uskokovic V, Drofenik M (2007) Mater Des 28:667
Bell RJ, Millar GJ, Drennan J (2000) Solid State Ionics 131:211
Choudhary VR, Banerjee S, Uphade BS (2000) Appl Catal B 197:183
Hwang HJ, Awano M (2001) J Eur Ceram Soc 21:2103
Mali A, Ataie A (2005) Scr Mater 53:1065
Yue ZX, Guo WY, Zhou J et al (2004) J Magn Magn Mater 270:216
Liu XJ, Li HL, Xie RJ et al (2007) J Lumin 124:75
Xiao Q, Si ZC, Yu ZM et al (2007) Mater Sci Eng B 137:189
Sun J, Zhang ZH, Cao XH (2007) Solid State Phenom 121–123:967
Predoana L, Malic B, Kosec M et al (2007) J Eur Ceram Soc 27:4407
Ponce S, Fierro JLG (2000) Appl Catal B 24:193
Choso T, Tabata K (1997) J Solid State Chem 129:60
Nagabhushana BM, Chakradhar RPS, Ramesh KP et al (2007) Mater Chem Phys 102:47
Chakrabarti N, Maiti HS (1997) Mater Lett 30:169
Acknowledgment
This work is financially supported by the National Natural Science Foundation of China, NNSFC 50574042.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Li, Y., Yao, S., Xue, L. et al. Sol–gel combustion synthesis of nanocrystalline LaMnO3 powders and photocatalystic properties. J Mater Sci 44, 4455–4459 (2009). https://doi.org/10.1007/s10853-009-3673-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-009-3673-7