Investigation on the delaminated-pillared structure of TiO2-PILC synthesized by TiCl4 hydrolysis method
Yuan, Peng, Yin, Xiaolin, He, Hongping, Yang, Dan, Wang, Linjiang, & Zhu, Jianxi (2006) Investigation on the delaminated-pillared structure of TiO2-PILC synthesized by TiCl4 hydrolysis method. Microporous and Mesoporous Materials, 93(1-3), pp. 240-247.
TiO2-PILCs were synthesized by the reaction between montmorillonite and acidic solutions of hydrolyzed TiCl4. Unlike commonly reported microporous pillared structure, a meso-microporous delaminated structure containing pillared fragments was observed in the resulting TiO2-PILC, based on the combined analyses of powder X-ray diffraction (XRD), nitrogen adsorption-desorption isotherms, chemical analysis, thermogravimetric (TG) and differential scanning calorimetry (DSC) analyses. Air-drying after ethanol extraction (EAD) is shown to be more effective than air-drying (AD) in preserving the delaminated structure in the resultant Ti-clay. A broad XRD peak at low 2? angle with a high d-spacing of ca. 6.6 nm was firstly reported and it was proposed to be correlated with the mesoporous delaminated structure rather than the (001) reflection of intercalated/pillared periodic structure. The resulting TiO2-PILC exhibits a good thermal stability as indicated by its surface area after calcination at 600 degrees Celsius. Moreover, calcination above 300 degrees Celsius results in the formation of nanocrystalline anatase in the TiO2-PILC, and the grain size of anatase increases with the increment of calcination temperature. However, no phase transformation from anatase to rutile was observed even under calcination at 1000 degrees Celsius. These fundamental results provide new insights about the structure of TiO2-PILC synthesized by TiCl4 hydrolysis method.
Citation countsare sourced monthly fromand citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
Full-text downloadsdisplays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.
|Item Type:||Journal Article|
|Keywords:||TiO2, PILC, Delaminated structure, Mesoporous, microporous materials, Anatase, Rutile|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > ORGANIC CHEMISTRY (030500)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2006 Elsevier|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher.|
|Deposited On:||25 Jul 2006|
|Last Modified:||11 Aug 2011 04:39|
Repository Staff Only: item control page