Synthesis of MS/TiO2 (M = Pb, Zn, Cd) nanocomposites through a mild sol-gel process

Authors
Su, HL Xie, Y Gao, P Xiong, YJ Qian, YT
Citation
Hl. Su et al., Synthesis of MS/TiO2 (M = Pb, Zn, Cd) nanocomposites through a mild sol-gel process, J MAT CHEM, 11(2), 2001, pp. 684-686
Citations number
38
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS CHEMISTRY
ISSN journal
09599428 → ACNP
Volume
11
Issue
2
Year of publication
2001
Pages
684 - 686
Database
ISI
SICI code
0959-9428(2001)11:2<684:SOM(=P>2.0.ZU;2-I
Abstract
In a sol-gel process, metal acetates reacted with thioacetamide to form the corresponding metal sulfides homogeneously dispersed in a colloid. The as- prepared dry gels were decomposed by heat treatment at 120 degreesC to form MS/TiO2 (M = Pb, Zn, Cd) nanocomposites. The products were analyzed by inf rared spectroscopy, X-ray powder diffraction, transmission electron microsc opy, elemental analysis, UV-Vis absorption, and photoluminescence. The fina l nanocomposites consisted of amorphous titanium dioxide nanoparticles and nanocrystalline metal sulfides. Nanocrystalline PbS in the gel had fine opt ical properties and showed obvious quantum confinement effects.