11 September 2015 Green route for preparing extra-small TiO2 nanoparticles using aloe extracts and their application in degradation of methyl orange
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Abstract
TiO2 nanoparticles (NPs) with high-photocatalysis properties both in ultraviolet and visible-light regions were synthesized via a simple sol-gel method, and an aloe leaf extract (ALE) was used as the cap. When the Ti(OC4H9)4∶(CH3)2CHOHALE volume ratio was equal to 0.5840, the reaction time was 6 h, and crystallization occurred at 80°C for 2 h, the TiO2NPs had been synthesized. XRD analysis showed that the structure of TiO2NPs without thermal treatment was anatase. Transmission electron microscopy images confirmed their average size, which was around 5 nm. The products showed an excellent photocatalytic property for methyl orange in the presence of UV and sunlight with the characterization of UV-vis. The photocatalytic activity was optimized by adjusting the amount of TiO2, the pH value, and the calcination temperature. Results indicated that ALE acted as a cap and nano-TiO2 could be synthesized without calcination.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Fang Yin, Fang Yin, Bo Jiang, Bo Jiang, Chunfeng Chen, Chunfeng Chen, Yunzhi Fu, Yunzhi Fu, Yongjun Chen, Yongjun Chen, Xinghua Xue, Xinghua Xue, Mohsen Mazidi, Mohsen Mazidi, } "Green route for preparing extra-small TiO2 nanoparticles using aloe extracts and their application in degradation of methyl orange," Journal of Nanophotonics 9(1), 093056 (11 September 2015). https://doi.org/10.1117/1.JNP.9.093056 . Submission:
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