吴健松;魏文君;蓝晓欣;

• 1:岭南师范学院化学化工学院
• 2:岭南师范学院生物科学与技术学院

摘要(Abstract)：

以MgBr_2·6H_2O、Al_2(SO_4)_3·18H_2O为原料,Na_2CO_3-NaHCO_3缓冲对为沉淀剂,合成了优质的Mg_6Al_2(OH)_(13)-SO_4-CO_3-Br·5.5H_2O晶须.样品用XRD、SEM、N2吸附-解吸进行了物相、粒度、晶体形貌结构分析.分析了缓冲对体积分数对LDH-SO_4-CO_3-Br晶须晶形及晶胞参数的影响.结果发现,缓冲对用量在体系中含量的大小对其规整性、板层结构有较大的影响.当缓冲液用量为40%,反应温度T=75?C,反应时间t=212h时可获得晶形好、板层结构显著、规整性好、分散性好的优质LDH-SO_4-CO_3-Br晶须.

关键词(KeyWords)： Mg_6Al_2(OH)_(13)-SO_4-CO_3-Br·5.5H_2O;制备;结构分析

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51272207);; 广东省科技计划(2013B021100019);; 岭南师范学院博士专项

作者(Authors): 吴健松;魏文君;蓝晓欣;

DOI: 10.13568/j.cnki.651094.2019.01.007

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