南通大学分析测试中心;
为了避免以往用酸碱刻蚀模板法制备空心二氧化硅纳米颗粒带来的安全和环保问题,提出一种高效绿色合成方法。以聚苯乙烯为模板,先将SiO_2沉积在模板上,再通过煅烧去除PS模板,制备了空心二氧化硅纳米颗粒,并通过扫描电镜、透射电镜、X射线能谱分析仪、傅里叶变换红外光谱仪、X射线衍射仪、热重分析仪和物理吸附仪等对其结构进行表征。结果表明:所制备的空心二氧化硅纳米颗粒具有明显的空心结构,颗粒直径约为120 nm;组成元素为Si和O;在20～780℃环境下,空心二氧化硅纳米颗粒都具有优异的热稳定性;N_2吸附/脱附曲线呈现出S型吸附等温线的特征,存在明显的滞回环;比表面积为568.82 m~2/g。
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基本信息:
DOI：10.12194/j.ntu.20190904001
中图分类号:TB383.1;TQ127.2
引用信息:
[1]杨睿璐,石健,李春建.空心二氧化硅纳米颗粒的高效绿色合成[J],2021,20(02):69-73.DOI:10.12194/j.ntu.20190904001.
基金信息:
江苏省高校自然科学基金项目（19KJB150037）;; 南通大学人才引进项目（03081225）