Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/61031
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Evaluation of the physical properties and photodegradation ability of titania nanocrystalline impregnated onto modified kaolin |
Author: | Vimonses, V. Chong, M. Jin, B. |
Citation: | Microporous and Mesoporous Materials, 2010; 132(1-2):201-209 |
Publisher: | Elsevier Science BV |
Issue Date: | 2010 |
ISSN: | 1387-1811 1873-3093 |
Statement of Responsibility: | Vipasiri Vimonses, Meng Nan Chong and Bo Jin |
Abstract: | In this study, a microporous layer photocatalyst of titania nanocrystallites heterocoagulated with structurally modified kaolin (TiO2-K) was synthesised via a modified sol-gel method. Physical properties (particle size, morphology, stability and settleability) and photodegradation capacity of the TiO2-K catalyst subject to its synthesis, regeneration and use for water treatment were studied. The modified kaolin, as a support for the titania nanocrystallites had a delaminated sandwich silica structure that minimises chemical intercalation within the nanocomposite structure. Microscopic examination revealed that the TiO2 nanocrystallites were uniformly deposited on the kaolin external surface, resulting in a high degree of photon activation. Compared to the commercial TiO2 P25, the TiO2-K demonstrated a superior photocatalytic degradation capacity to remove an anionic Congo red dye. Its removal efficiency and photo-reaction performance were improved when the TiO2-K was regenerated by a thermal treatment. The TiO2-K particles can be easily separated from the water system for further reuse. This unique nanocomposite photocatalyst shows promising technical advantages for a continuous industrial process of water treatment. © 2010 Elsevier Inc. |
Keywords: | TiO₂ Photocatalysis Sol–gel Kaolin Thermal regeneration |
Rights: | Copyright © 2010 Elsevier Inc. All rights reserved. |
DOI: | 10.1016/j.micromeso.2010.02.021 |
Grant ID: | http://purl.org/au-research/grants/arc/LP0562076 http://purl.org/au-research/grants/arc/LP0562076 |
Published version: | http://dx.doi.org/10.1016/j.micromeso.2010.02.021 |
Appears in Collections: | Aurora harvest Chemical Engineering publications Environment Institute publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.