Preparation of nanosized semiconductor CdS particles by emulsion liquid membrane with o-phenanthroline as mobile carrier

Citation
Qs. Wu et al., Preparation of nanosized semiconductor CdS particles by emulsion liquid membrane with o-phenanthroline as mobile carrier, J MEMBR SCI, 172(1-2), 2000, pp. 199-201
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Chemistry,"Chemical Engineering
Journal title
JOURNAL OF MEMBRANE SCIENCE
ISSN journal
0376-7388 → ACNP
Volume
172
Issue
1-2
Year of publication
2000
Pages
199 - 201
Database
ISI
SICI code
0376-7388(20000701)172:1-2<199:PONSCP>2.0.ZU;2-U
Abstract
An emulsion liquid membrane containing Span-80, CHCl3 and o-phenanthroline, as a mobile carrier is proposed for the preparation of nanosized semicondu ctor CdS particles. Effects of the different factors on the synthetic react ion were investigated. The structure and morphology of the products were ch aracterized, and the opto-electronic properties were detected. Under the co nditions of Roi 2.0, Rew 1.5 and pH 5, in 10 min of contact between ELM and the external aqueous phase, the CdCl2 in the external aqueous phase was co mpletely transferred and reacted with the Na2S in internal aqueous phase, a nd turned into size-quantized CdS nanocrystals with the average size of abo ut 4.5 nm. The ELM method may open a new synthetic route for a series of na nostructured inorganic materials. (C) 2000 Elsevier Science B.V. All rights reserved.