Morphologies of barium chromate controlled by carriers in an emulsion liquid membrane system by Lu Liu, Qingsheng Wu, Yaping Ding, and Huajie Liu

Crystal Research and Technology

Cryst. Res. Technol. 41, 27 (2006) - Abstract -

Morphologies of barium chromate controlled by carriers in an emulsion liquid membrane system

Lu Liu, Qingsheng Wu, Yaping Ding*, and Huajie Liu

Department of Chemistry, Tongji University, Shanghai 200092, China
*Department of Chemistry, Shanghai University, Shanghai 200436, China

Keywords	crystal morphology, barium compounds, inorganic compounds, nanomaterials
PACS	81.10.A, 81.20.K, 82.65.F
DOI	10.1002/crat.200410524

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 BaCl₂ 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.

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