Effect of drying technique on the morphological and textural characteristics of mesoporous silica synthesized in the microreactor

	Effect of drying technique on the morphological and textural characteristics of mesoporous silica synthesized in the microreactor
	Su, Min 1,2; Su, Hongjiu 1; Ren, Gaoyuan 1; Du, Baolei 1,2; Li, Xiaotong 1,2; Wang, Shudong 1
刊名	journal of sol-gel science and technology
	2015-02-01
卷号	73 期号:2 页码:460-468
关键词	Silica Mesoporous silica Microreactor Oven drying Spray drying Freeze drying
英文摘要	the mesoporous silica with high monodisperse inter-particle voids was obtained through different drying methods (oven, freeze, and spray) of wet-gel silica. and the wet-gel silica was prepared in the microreactor system through the precipitation of teos. the effects of different drying techniques on the textural properties and morphology of mesoporous silica synthesized in the microreactor were studied. the textural properties of silica were evaluated using nitrogen adsorption/desorption experiments. the morphology of the silica was described using transmission electron microscopy and field-emission scanning electron microscope. it was found that the oven drying (od) silica exhibited the most uniform pore structures and compact structures. the freeze drying silica maintained the original network of wet-cake silica after drying. due to the rapid and uniform heating of silica in the spray drying (sd) process, the silica obtained had the more porous structure than that of od technique. additionally, the surface tension of solution in the sd process affected the structures of final products. and the ethanol resulted in the more porous structures of silica than that of water.
WOS标题词	science & technology ; technology
类目[WOS]	materials science, ceramics
研究领域[WOS]	materials science
关键词[WOS]	nanoparticles ; systems
收录类别	SCI
语种	英语
WOS记录号	WOS:000349018000023
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/145992]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Su, Min,Su, Hongjiu,Ren, Gaoyuan,et al. Effect of drying technique on the morphological and textural characteristics of mesoporous silica synthesized in the microreactor[J]. journal of sol-gel science and technology,2015,73(2):460-468.
APA	Su, Min,Su, Hongjiu,Ren, Gaoyuan,Du, Baolei,Li, Xiaotong,&Wang, Shudong.(2015).Effect of drying technique on the morphological and textural characteristics of mesoporous silica synthesized in the microreactor.journal of sol-gel science and technology,73(2),460-468.
MLA	Su, Min,et al."Effect of drying technique on the morphological and textural characteristics of mesoporous silica synthesized in the microreactor".journal of sol-gel science and technology 73.2(2015):460-468.