Improving Adsorbent Properties of Cage-like Ordered Amine Functionalized Mesoporous Silica with Very Large Pores for Bioadsorption

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	Improving Adsorbent Properties of Cage-like Ordered Amine Functionalized Mesoporous Silica with Very Large Pores for Bioadsorption
	Hartono, Sandy Budi ; Qiao, Shi Zhang ; Jack, Kevin ; Ladewig, Bradley P. ; Hao, Zhengping ; Lu, Gao Qing (Max)
刊名	LANGMUIR
	2009-06-02
卷号	25 期号:11 页码:6413-6424
中文摘要	In this paper, we report the successful synthesis of amine-functionalized FDU-12-type mesoporous silica with a very large pore (30.2 rim) and a highly ordered mesostructure by using 3-aminopropyltriethoxysilane (APTES) as an organosilane source. Small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) measurements confirmed that the materials possessed a face-centered cubic (space group Fm (3) over barm) mesostructure. Different techniques were used to obtain a significant pore and entrance size enlargement: low synthesis temperature and high hydrothermal treatment temperature. The amount of amine organosilane influenced the mesostructure of the mesoporous silica. It was found that the addition of inorganic salt (KCl) could help to maintain an ordered structure of the large pore mesoporous material. X-ray photoelectron spectroscopy (XPS), solid-state magic-angle spinning (MAS) (13)C nuclear magnetic resonance (NMR) and thermogravimetric analysis (TGA) verified the incorporation of amine functional groups on the surface of the materials. The addition of amine organosilane extended the synthesis temperature domain of ordered FDU-12 materials. The amine functional group significantly enhanced the adsorption capacity of the mesoporous materials, e.g., the amine functionalized mesoporous silica had 8-fold higher bovine serum albumin (BSA) adsorption capacity than that of the unfunctionalized one. It also had 2 times higher adsorption capacity for large cellulase enzymes. The amine functional group introduced positively charged groups on the surface of the mesoporous silica, which created strong electrostatic interactions between the protein and the silica.
WOS记录号	WOS:000266604000058
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21617]
专题	生态环境研究中心_环境纳米材料实验室
推荐引用方式 GB/T 7714	Hartono, Sandy Budi,Qiao, Shi Zhang,Jack, Kevin,et al. Improving Adsorbent Properties of Cage-like Ordered Amine Functionalized Mesoporous Silica with Very Large Pores for Bioadsorption[J]. LANGMUIR,2009,25(11):6413-6424.
APA	Hartono, Sandy Budi,Qiao, Shi Zhang,Jack, Kevin,Ladewig, Bradley P.,Hao, Zhengping,&Lu, Gao Qing .(2009).Improving Adsorbent Properties of Cage-like Ordered Amine Functionalized Mesoporous Silica with Very Large Pores for Bioadsorption.LANGMUIR,25(11),6413-6424.
MLA	Hartono, Sandy Budi,et al."Improving Adsorbent Properties of Cage-like Ordered Amine Functionalized Mesoporous Silica with Very Large Pores for Bioadsorption".LANGMUIR 25.11(2009):6413-6424.