Synthesis and coloring properties of Cd(S_1-xSe_x) pigments by precipitate-hydrothermal method

来源期刊：中南大学学报(英文版)2008年第6期

论文作者：宋晓岚 彭林 丁意 邱冠周

文章页码：748 - 752

Key words：Cd(S_1-xSe_x) pigments; precipitate-hydrothermal reaction; reaction mechanism

Abstract: Cd(S_1-xSe_x) pigments (red to yellow) were synthesized by precipitate-hydrothermal method. The structure, morphology and hue of the powder were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDAX) and CIE chromaticity. The optimum synthesis conditions were obtained and reaction mechanism was further analyzed as well. The results show that molar ratio of S to Se, pH value and hydrothermal reaction conditions have great effects on the hues of the pigments. Pigments with vivid hues are obtained under the conditions that pH value is about 13.0, hydrothermal reaction condition is at 140 ℃ for 4 h or at 160 ℃ for 6 h. The reaction mechanism is that Se^2- of Cd(S_1-xSe_x) substitutes S^2- of CdS and then forms a continuous solid solution.

基金信息：the International Cooperation of Science and Technology of Ministry of China
the Undergraduate Innovation Education of Central South University, China