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Morphology evolution, optical properties of Cu2PO4(OH) crystals and their application to photocatalysts.
|In-Sun Cho 1, Dong Wook Kim 1, Sangwook Lee 1, Jeong Seop Lee 1, Kug Sun Hong|
1. Seoul National University, Department of Materials Science and Engineering (MSE, SNU), San 56-1, Sillim-dong, Gwanak-gu, Seoul 151-744, Korea, South
In the synthesis of copper phosphate hydroxide, Cu2PO4(OH), crystals via simple wet chemical route, a pH-dependent morphology evolution was observed. By changing the pH value from 2.8 to 4.0, the morphology of crystals was varied from micro-sized rod to nano-sized dendritic rods. Furthermore, the reaction time and temperature were controlled to varying the size of the copper phosphate hydroxide crystals. The crystal structure, morphology and optical properties were investigated by XRD, SEM and UV-vis spectroscopy, respectively. Photocatalytic properties were evaluated using FT-IR spectroscopy via the disappearance of stearic acid (SA). The deference of the decomposition rate with morphology was discussed in a view of the specific surface area.
Presentation: Poster at E-MRS Fall Meeting 2007, Symposium A, by In-Sun Cho
See On-line Journal of E-MRS Fall Meeting 2007
Submitted: 2007-05-21 19:57 Revised: 2009-06-07 00:44