کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1615115 | 1516343 | 2013 | 4 صفحه PDF | دانلود رایگان |
In this study, a simple hydrothermal route was developed for the synthesis of the square-like anatase TiO2 nanocrystals starting from TiOA and NH4F raw materials. The synthesized nanocrystals exhibited a high percentage 64% of exposed {0 0 1} facets and highly crystalline. The size of square-like nanocrystals was found to be ca. 50–80 nm and their thickness was 10–20 nm. It was found that the intermediate TiOF2 QDs formed before the hydrothermal reaction played a key role for the formation of square-like anatase TiO2 nanocrystals. Based on a series of experimental results, a possible mechanism for the formation of square-like anatase TiO2 nanocrystals with a highly exposed {0 0 1} facet was proposed.
The square-like anatase TiO2 nanocrystals were successfully synthesized and found that the intermediate TiOF2 quantum dots formed before the hydrothermal reaction played a key role for the formation of TiO2 with a high percentage of exposed {0 0 1} facets.Figure optionsDownload as PowerPoint slideHighlights
► A simple hydrothermal route was developed for the synthesis of the square-like anatase TiO2 nanocrystals without HF.
► The anatase TiO2 nanocrystals exhibited a high percentage 64% of exposed {0 0 1} facets and highly crystalline.
► The intermediate TiOF2 QDs played a key role for the formation of square-like anatase TiO2 nanocrystals.
Journal: Journal of Alloys and Compounds - Volume 550, 15 February 2013, Pages 475–478