Synthesis and Structural Analysis of LDH-SO4-CO3 Whisker  

作　　者：WU Jiansong YANG Yifeng 吴健松;YANG Yifeng(School of Chemistry and Chemical Engineering,Lingnan Normal University,Zhanjiang 524048,China;School of Biological Science and Technology,Lingnan Normal University,Zhanjiang 524048,China)

机构地区：[1]School of Chemistry and Chemical Engineering,Lingnan Normal University,Zhanjiang 524048,China [2]School of Biological Science and Technology,Lingnan Normal University,Zhanjiang 524048,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2019年第5期1085-1088,共4页武汉理工大学学报（材料科学英文版）

基　　金：Funded by National Natural Science Foundation of China(No.51272207);Science and Technology Plan of Guangdong Province((No.2013B021100019)

摘　　要：High-quality LDH-SO4-CO3 whiskers were synthesized via liquid precipitation method using MgSO4·7 H2 O and Al2(SO4)3·18 H2O as precursors and Na2CO3-NaHCO3 buffer solution as precipitant. The influence of buffer solution concentration on the characteristics of the samples was investigated. The asgrown whiskers were characterized by X-ray diffraction, transmission electron microscopy, and BrunauerEmmett-Teller N2 specific surface area measurements. The results show that the buffer solution concentration has significant impact on whiskers with intercalated structure. The LDH-SO4-CO3 whiskers with well-defined geometry, distinct intercalated structure, decent quality, and excellent dispersing capability can be obtained under the following conditions: buffer solution volume ratio of 45%, reaction temperature of 83°C, and reaction time of 182 h. The obtained whiskers are well-crystallized and exhibit homogeneous morphology consisting of fiber bars.High-quality LDH-SO4-CO3 whiskers were synthesized via liquid precipitation method using MgSO4·7 H2 O and Al2（SO4）3·18 H2O as precursors and Na2CO3-NaHCO3 buffer solution as precipitant. The influence of buffer solution concentration on the characteristics of the samples was investigated. The asgrown whiskers were characterized by X-ray diffraction, transmission electron microscopy, and BrunauerEmmett-Teller N2 specific surface area measurements. The results show that the buffer solution concentration has significant impact on whiskers with intercalated structure. The LDH-SO4-CO3 whiskers with well-defined geometry, distinct intercalated structure, decent quality, and excellent dispersing capability can be obtained under the following conditions: buffer solution volume ratio of 45%, reaction temperature of 83°C, and reaction time of 182 h. The obtained whiskers are well-crystallized and exhibit homogeneous morphology consisting of fiber bars.

关 键 词：WHISKERS LDH-SO4-CO3 SYNTHESIS structural analysis 

分 类 号：TB3[一般工业技术—材料科学与工程]