Zn2+、Cr3+掺杂对水热合成纳米CoAl2O4尖晶石色料的影响

doi:10.3724/SP.J.1077.2012.12065

无机材料学报 ›› 2012, Vol. 27 ›› Issue (12): 1317-1320.DOI: 10.3724/SP.J.1077.2012.12065 CSTR: 32189.14.SP.J.1077.2012.12065

Zn²⁺、Cr³⁺掺杂对水热合成纳米CoAl₂O₄尖晶石色料的影响

陈云霞^1,2, 胡琪¹, 曹春娥¹, 卢希龙¹, 洪琛¹, 沈华荣¹

(1. 景德镇陶瓷学院材料科学与工程学院, 景德镇 333403; 2. 江西省先进陶瓷材料重点实验室, 景德镇 333001)

收稿日期:2012-02-02 修回日期:2012-03-30 出版日期:2012-12-20 网络出版日期:2012-11-19
作者简介:陈云霞(1976–), 女, 博士. 副教授. E-mail: yx_clouds@126.com
基金资助:
国家自然科学基金(50862003)

Effects of Zn²⁺ and Cr³⁺ Doping on Nano-sized CoAl₂O₄ Spinel Pigments by Hydrothermal Processing

CHEN Yun-Xia^1,2, HU Qi¹, CAO Chun-E¹, LU Xi-Long¹, HONG Chen¹, SHEN Hua-Rong¹

(1. School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, China; 2. Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen 333001, China)

Received:2012-02-02 Revised:2012-03-30 Published:2012-12-20 Online:2012-11-19
About author:CHEN Yun-Xia. E-mail: yx_clouds@126.com
Supported by:
National Natural Science Foundation of China (50862003)

摘要/Abstract

摘要： 以CoCl₂·6H₂O、ZnCl₂、AlCl₃和CrCl₃·6H₂O为原料, 采用水热法合成了CoAl₂O₄(AB₂O₄)尖晶石型纳米钴蓝色料. 采用色度分析、X射线衍射(XRD)、透射电镜(TEM)以及高分辨透射电镜(HRTEM)等研究了A位掺杂Zn²⁺和B位掺杂Cr³⁺时不同掺杂量以及不同水热合成温度对样品呈色、晶相组成及CoAl₂O₄尖晶石的晶粒大小、发育程度和晶面间距的影响. 结果表明, 掺杂Zn²⁺、Cr³⁺所得固溶体型钴蓝色料晶粒发育均不完整, 颗粒较于相同水热条件下获得的未掺杂样品更细小. A位掺杂Zn²⁺可降低CoAl₂O₄色料的合成温度, 在230℃便能制得呈色较佳的Co_0.95Zn_0.05Al₂O₄钴蓝色料. 随着Zn²⁺掺杂量的增加, 合成产物由蓝色转为绿色, 且呈色逐渐变浅. B位Cr³⁺掺杂则随着掺杂量的增加, 产物从蓝色逐步转为绿色, 但呈色逐渐变深. 就两者相比较, A位掺杂Zn²⁺更有利于色料明度值的提高而呈色鲜亮.

关键词: CoAl₂O₄尖晶石, 色料, Zn²⁺、Cr³⁺掺杂, 固溶体

Abstract: Nanosized spinel type cobalt blue pigments of CoAl₂O₄(AB₂O₄) were hydrothermally synthesized using CoCl₂·6H₂O, ZnCl₂, AlCl₃ and CrCl₃·6H₂O as raw materials. Colorimetric analysis, X-ray diffraction (XRD), transmission electron microscope (TEM) and High resolution transmission electron microscope(HRTEM) were employed to investigate the effects of various amounts of Zn²⁺ doping at A site and Cr³⁺ doping at B site and various hydrothermal temperatures on the coloration, crystal phase compositions, crystal size and interplanar spacing of the CoAl₂O₄ spinels. The results indicated that Zn²⁺ and Cr³⁺ doping cause incomplete crystal growth and result in smaller particles than that of undoped spinels obtained at the same hydrothermal conditions. Zn²⁺ doping at A site lowered the synthesis temperature of the spinel crystalline colorants. Co_0.95Zn_0.05Al₂O₄ pigments with good coloration were obtained at 230℃. The hues of the as-prepared pigments changed from blue to green with increased amount of Zn²⁺ doping, and the coloration of samples became lighter. Similarly, the hues of the pigments also changed from blue to green with increasing the amount of Cr³⁺, but the coloration became deeper. Zn2+ doped spinels are of better coloration than that of Cr³⁺ doped.

Key words: CoAl₂O₄, pigments, Zn²⁺ and Cr³⁺ doping, solid solution

中图分类号:

TQ174

陈云霞, 胡琪, 曹春娥, 卢希龙, 洪琛, 沈华荣. Zn²⁺、Cr³⁺掺杂对水热合成纳米CoAl₂O₄尖晶石色料的影响[J]. 无机材料学报, 2012, 27(12): 1317-1320.

CHEN Yun-Xia, HU Qi, CAO Chun-E, LU Xi-Long, HONG Chen, SHEN Hua-Rong. Effects of Zn²⁺ and Cr³⁺ Doping on Nano-sized CoAl₂O₄ Spinel Pigments by Hydrothermal Processing[J]. Journal of Inorganic Materials, 2012, 27(12): 1317-1320.

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Zn²⁺、Cr³⁺掺杂对水热合成纳米CoAl₂O₄尖晶石色料的影响

Effects of Zn²⁺ and Cr³⁺ Doping on Nano-sized CoAl₂O₄ Spinel Pigments by Hydrothermal Processing

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