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[1]赵晓琴,林敬东*,廖代伟,等.单分散纳米二氧化硅的制备及影响因素分析[J].厦门大学学报(自然科学版),2011,50(S1):38.
 ZHAO Xiao qin,LIN Jing dong*,LIAO Dai wei,et al.Preparation of Monodisperse Nanosilica Microspheres[J].Journal of Xiamen University(Natural Science),2011,50(S1):38.
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单分散纳米二氧化硅的制备及影响因素分析(PDF)
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《厦门大学学报(自然科学版)》[ISSN:0438-0479/CN:35-1070/N]

卷:
50卷
期数:
2011年S1期
页码:
38
栏目:
化学研究
出版日期:
2012-01-10

文章信息/Info

Title:
Preparation of Monodisperse Nanosilica Microspheres
作者:
赵晓琴林敬东*廖代伟张鸿斌
厦门大学化学化工学院化学系,醇醚酯化工清洁生产国家工程实验室,福建 厦门 361005
Author(s):
ZHAO XiaoqinLIN Jingdong*LIAO DaiweiZHANG Hongbin
National Engineering Laboratory for Green Chemical Productions of AlcoholsEthersEsters, College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China
关键词:
Stober法SiO2微球单分散
Keywords:
StoberSiO2 microspheresmonodisperse
分类号:
TQ 127.2
文献标志码:
-
摘要:
以正硅酸四乙酯(TEOS)为原料采用Stober法制备了单分散、粒径分布均匀、平均直径范围在250~800 nm的纳米二氧化硅微球.通过SEM和XRD表征手段,探讨了水、TEOS和氨水用量对SiO2形貌和粒径的影响.结果表明,添加适量的水会得到粒径较大、均匀且分散性好的SiO2微球;随氨水和TEOS用量增多,SiO2粒径增加;若氨水用量太少,则得到粒径虽小但圆度差、表面不光滑的SiO2.
Abstract:
Monodisperse nanosilica microspheres were prepared by conventional Stober method.Silica particles with sizes between 100 to 800 nm were obtained by alkaline hydrolysis of tetraethyl orthosilicate (TEOS) in ethanol solution.The morphology and particle size of nanosilica were investigated using SEM and XRD.The results showed that monodisperse silica particles could be obtained using proper amount of water.The results also showed that the silica particle sizes decreased with increasing amount of ammonia and TEOS,while silica particles obtained using low concentraton of ammonia appeared rough surface.

参考文献/References:


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备注/Memo

备注/Memo:
收稿日期:20110523 基金项目:国家重点基础研究发展规划(973)项目(2011CBA00508) *通信作者:jdlin@xmu.edu.cn
更新日期/Last Update: 2011-12-20