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[1]吴健松.Mg6Al2(OH)13CO3Br1.6Cl1.4·5.5H2O晶须的合成及其结构分析[J].厦门大学学报(自然科学版),2019,58(03):333-337.[doi:10.6043/j.issn.0438-0479.201805040]
 WU Jiansong.Synthesis and structural analysis of Mg6Al2(OH)13CO3Br1.6Cl1.4·5.5H2O whiskers[J].Journal of Xiamen University(Natural Science),2019,58(03):333-337.[doi:10.6043/j.issn.0438-0479.201805040]
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Mg6Al2(OH)13CO3Br1.6Cl1.4·5.5H2O晶须的合成及其结构分析(PDF/HTML)
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《厦门大学学报(自然科学版)》[ISSN:0438-0479/CN:35-1070/N]

卷:
58卷
期数:
2019年03期
页码:
333-337
栏目:
研究论文
出版日期:
2019-05-28

文章信息/Info

Title:
Synthesis and structural analysis of Mg6Al2(OH)13CO3Br1.6Cl1.4·5.5H2O whiskers
文章编号:
0438-0479(2019)03-0333-05
作者:
吴健松
岭南师范学院化学化工学院,广东 湛江 524048
Author(s):
WU Jiansong
School of Chemistry and Chemical Engineering,Lingnan Normal University,Zhanjiang 524048,China
关键词:
Mg6Al2(OH)13CO3Br1.6Cl1.4·5.5H2O晶须 合成 结构分析
Keywords:
Mg6Al2(OH)13CO3Br1.6Cl1.4·5.5H2O whisker synthesis structural analysis
分类号:
TQ 132
DOI:
10.6043/j.issn.0438-0479.201805040
文献标志码:
A
摘要:
以MgBr2·6H2O、AlCl3·6H2O为原料,Na2CO3-NaHCO3缓冲溶液为沉淀剂,合成了Mg6Al2(OH)13CO3Br1.6Cl1.4·5.5H2O(简写为LDH-CO3-Br1.6 -Cl1.4)晶须,考察了缓冲溶液用量对样品的晶形及晶胞参数的影响,并采用X射线衍射(XRD)、扫描电镜(SEM)、N2吸附-脱附法对样品的物相、结晶度、晶体形貌结构和比表面积进行分析.结果发现缓冲溶液用量对样品的形貌和板层结构有较大的影响.当反应液中Na2CO3和NaHCO3浓度分别为0.625和0.25 mol/L,在65 ℃下反应205 h时可获得晶形好、板层结构显著、规整性好、分散性好的LDH-CO3-Br1.6-Cl1.4晶须.
Abstract:
Mg6Al2(OH)13CO3Br1.6Cl1.4·5.5H2O(abbreviated as LDH-CO3-Br1.6 -Cl1.4)whisker was synthesized via liquid precipitation method using MgBr2·6H2O and AlCl3·6H2O as raw materials,and Na2CO3-NaHCO3 buffer solution as precipitant.The influence of the buffer solution amount on crystal form and cell parameters of the samples was investigated.The phase,crystallinity,crystal morphology and structure, and specific surface area of the samples were characterized using X-ray diffraction(XRD),transmission electron microscopy(SEM),and N2 adsorption-desorption method.The results showed that the amount of buffer solution had a significant impact on morphology and lamellar structure of samples.LDH-CO3-Br1.6-Cl1.4 whisker with good crystal shape,remarkable lamellar structure,good regularity and good dispersion can be obtained under the following conditions:the concentrations of Na2CO3 and NaHCO3 in the reaction solution were 0.625 mol/L and 0.25 mol/L,respectively,the reaction temperature was 65 ℃,and the reaction time was 205 h.

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备注/Memo

备注/Memo:
收稿日期:2018-05-28 录用日期:2018-07-26
基金项目:国家自然科学基金(51272207); 广东省科技计划(2013B021100019); 岭南师范学院重点项目
Email:wujs1975@aliyun.com
更新日期/Last Update: 1900-01-01