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Morphologies of barium chromate controlled by carriers in an emulsion liquid membrane system
Author(s) -
Liu Lu,
Wu Quingsheng,
Ding Yaping,
Liu Huajie
Publication year - 2006
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200410524
Subject(s) - emulsion , aqueous solution , transmission electron microscopy , chemical engineering , membrane , phase (matter) , solvent , chromate conversion coating , chemistry , liquid crystal , pulmonary surfactant , materials science , nanotechnology , organic chemistry , coating , biochemistry , engineering , optoelectronics
Morphology‐control of barium chromate has been studied in emulsion liquid membrane system. This system consists of Span80 as surfactant, N7301 or TBP as carrier, and kerosene as solvent. When BaCl 2 solution was used as internal‐aqueous phase and N7301 as carrier, the morphology of products can be varied from crystal wafers to crystal rods. X‐ray diffraction and transmission electron microscopy were used to characterize the structure and morphology. A synthetic mechanism has been proposed and the optical properties of the products were also discussed. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)