Green synthesis of a self-assembled rutile mesocrystalline photocatalyst
Publication in refereed journal

香港中文大學研究人員
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摘要This paper reports a simple and environmentally benign approach for the synthesis of photocatalytically active rutile TiO2 mesocrystals. It is a microwave-assisted hydrothermal method involving titanium(iii) chloride as the only reactant. The resulting 1D rutile nanowires can easily assemble into 3D hierarchical architectures without the help of surfactants or additives. The average aspect ratio for the nanowires is 267. The BET specific surface area of the mesocrystals is 16 m2 g-1. The optical band energy of the product exhibits an obvious red-shift of 0.2 eV with aspect to that of pure rutile TiO2. This red-shift effect may be ascribed to the high aspect ratio of rutile nanowires. The products show excellent photocatalytic activity for NO removal in air and the activity is well maintained after three cycles. Gold modification on the rutile TiO2 results in a 50% improvement in the photocatalytic performance. © The Royal Society of Chemistry 2010.
著者Zhang D., Li G., Wang F., Yu J.C.
期刊名稱CrystEngComm
出版年份2010
月份6
日期1
卷號12
期次6
出版社Royal Society of Chemistry
出版地United Kingdom
頁次1759 - 1763
國際標準期刊號1466-8033
語言英式英語

上次更新時間 2020-17-10 於 02:57