Abstract
In this paper, we reported the synthesis of a new family of thermal stable Ba3V2-xMnxO8 blue-green pigment materials based on the [MnO4]3- (V) chromophore. All samples were synthesized by a conventional high-temperature solid state method. Powder X-ray diffraction results showed that the structures of the as-prepared materials were hexagonal crystal system and the space group was R-3m. Infrared and Raman spectra indicated random disorder and structural modification of the pigment. Diffuse reflection spectra were obtained over the range of wavelength 200–1200 nm indicated that the blue-green color of the pigment is caused by optical absorption due to the CT transition in the tetrahedral MnO4 and the d-d transition of Mn5+ in the yellow-red light region. With the increase of temperature, the color of the pigment basically remains unchanged, showing the good thermal stability. Thus, this paper provides a family of new thermal stable blue-green pigment based on tetrahedral Mn(V) coordination with potential applications.
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