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Title: Surface characteristics and photoactivity of silver-modified palygorskite clays coated with nanosized titanium dioxide particles

Abstract

This paper presents the results of a study in which nanosized titanium dioxide (TiO{sub 2}) crystal particles were coated onto the surface of palygorskite fibrous clay which had been modified by silver ions using titanium tetrachloride as a precursor. Coated TiO{sub 2} particles with the anatase structure were formed after calcining at 400 deg. C for 2 h in air. Various analytical techniques were used to characterize the surface properties of titanium dioxide particles on the palygorskite. Transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses showed that TiO{sub 2} particles were supported on the surface of the palygorskite clays and their size was in the range of 3-6 nm. The titanium oxide coatings were found to be very active for the photocatalytic decomposition of methylene blue.

Authors:
 [1];  [2];  [2]
  1. Department of Materials and Engineering, Hefei University of Technology, Tunxi Road 193 Hefei, Anhui Province 230009 (China). E-mail: zdf6910@163.com
  2. Department of Materials and Engineering, Hefei University of Technology, Tunxi Road 193 Hefei, Anhui Province 230009 (China)
Publication Date:
OSTI Identifier:
21003538
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 58; Journal Issue: 3; Other Information: DOI: 10.1016/j.matchar.2006.04.024; PII: S1044-5803(06)00124-0; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CATALYSTS; CLAYS; COATINGS; CRYSTALS; DECOMPOSITION; METHYLENE BLUE; NANOSTRUCTURES; PHOTOCATALYSIS; PRECURSOR; SILVER; SILVER IONS; SURFACE PROPERTIES; TITANIUM CHLORIDES; TITANIUM OXIDES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Zhao Difang, Zhou Jie, and Liu Ning. Surface characteristics and photoactivity of silver-modified palygorskite clays coated with nanosized titanium dioxide particles. United States: N. p., 2007. Web. doi:10.1016/j.matchar.2006.04.024.
Zhao Difang, Zhou Jie, & Liu Ning. Surface characteristics and photoactivity of silver-modified palygorskite clays coated with nanosized titanium dioxide particles. United States. doi:10.1016/j.matchar.2006.04.024.
Zhao Difang, Zhou Jie, and Liu Ning. Thu . "Surface characteristics and photoactivity of silver-modified palygorskite clays coated with nanosized titanium dioxide particles". United States. doi:10.1016/j.matchar.2006.04.024.
@article{osti_21003538,
title = {Surface characteristics and photoactivity of silver-modified palygorskite clays coated with nanosized titanium dioxide particles},
author = {Zhao Difang and Zhou Jie and Liu Ning},
abstractNote = {This paper presents the results of a study in which nanosized titanium dioxide (TiO{sub 2}) crystal particles were coated onto the surface of palygorskite fibrous clay which had been modified by silver ions using titanium tetrachloride as a precursor. Coated TiO{sub 2} particles with the anatase structure were formed after calcining at 400 deg. C for 2 h in air. Various analytical techniques were used to characterize the surface properties of titanium dioxide particles on the palygorskite. Transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses showed that TiO{sub 2} particles were supported on the surface of the palygorskite clays and their size was in the range of 3-6 nm. The titanium oxide coatings were found to be very active for the photocatalytic decomposition of methylene blue.},
doi = {10.1016/j.matchar.2006.04.024},
journal = {Materials Characterization},
number = 3,
volume = 58,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}