钴铝比对钴蓝颜料反射光谱的影响  

Effect of Reflectivity Properties of Cobalt Blue Pigments on the Rate of Co^(2+)/Al^(3+)

作　　者：周明明[1] 汪萍[1] 廉世勋[1] 余丽萍[1] 朱爱玲[1] 

机构地区：[1]湖南师范大学化学化工学院,中国长沙410081

出　　处：《湖南师范大学自然科学学报》2008年第2期76-78,共3页Journal of Natural Science of Hunan Normal University

基　　金：湖南省科技厅攻关项目(05GK2016);长沙市科学技术局资助项目(K071009-11)

摘　　要：采用燃烧法合成了钴蓝颜料(CoAl2O4),研究了钴/铝的物质的量之比(nCo/nAl)对光反射性质的影响.采用XRD和反射光谱表证了样品的物相和光反射特性.XRD研究表明非计量比条件下,物相仍然保持尖晶石结构.发现nCo/nAl=1:3时,钴蓝的色纯度最好.Cobalt blue pigment is prepared by combustion method. It is studied that effect of reflection properties on the rate of Co^2＋/Al^3＋. The crystallization, particle size and monochromaticity of samples have been examined by powder X-ray diffraction （XRD）, scan election microscopy （SEM） and reflection spectra. Results of XRD reveal that the crystal structure of cobalt blue still remains spinel-type with the rate of Co^2＋/Al^3＋ of raw materials. In contrast to calculation result from XRD data, SEM data indicate that the nanosized cobalt aggregates up to diameter of particles 5-8 μm. It is found that the monochromaticity is the best when the molar rate of nCr/nAl is equal to 1：3. According to experimental results, the relationship of properties and structure is analyzed.

关 键 词：钴蓝颜料 非化学计量比 燃烧法 色纯度 

分 类 号：Q935[生物学—微生物学]