Vesicle-like and 3D-hexagonal Mesoporous SiO2: Preparation and Laccase   Adsorption Properties

CORC > 北京大学 > 环境科学与工程学院

	Vesicle-like and 3D-hexagonal Mesoporous SiO2: Preparation and Laccase Adsorption Properties
	Yang, H. ; Liu, L. ; Liang, B. S. ; Yuan, H. M. ; Tian, M. J. ; Yang, Y. X. ; Huang, Y.
刊名	ADSORPTION SCIENCE & TECHNOLOGY
	2015
关键词	CANDIDA-RUGOSA LIPASE SILICA COUNTERIONS ENZYMES
英文摘要	3D hexagonal mesoporous silica (YPS) and vesicle-like mesoporous silica (YNS) were synthesized using H3PO4 and HNO3 as catalyst respectively, and environmental friendly sodium N-dodecyl glycine (YCS) as a green surfactant. The YPS and YNS samples were calcined at 550 degrees C, 700 degrees C and 850 degrees C. Their ordered meso-structures were characterized using infrared spectroscopy (IR), small-angle X-ray diffraction (SXRD), and high resolution transmission electron microscopy (HRTEM). Since YNS has special pore structure, it shows radiating channels with 20 nm shell around, while YPS shows random access channels. YNS not only has slightly larger pore size and IEP value than those of YPS but also possesses higher thermal stability. Precisely because of these factors, the pore of YNS-550 is characteristic of unique curvature, having stronger action with the laccase molecule than that between laccase molecule and YPS-550 with smaller pore curvature. So laccase adsorption isotherm of YPS-550 was V-type and that of YNS-550 was IV-type. The adsorption equation for laccase onto a mesoporous silica surface may be obtained as log[theta/(1 - theta)] = (log C + log K)/beta.; National Natural Science Foundation of China [20577010, 20971043]; Open Project Program of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University; SCI(E); EI; ARTICLE; yxyang@ecust.edu.cn; huangyan@ecust.edu.cn; 10; 831-850; 33
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/436100]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Yang, H.,Liu, L.,Liang, B. S.,et al. Vesicle-like and 3D-hexagonal Mesoporous SiO2: Preparation and Laccase Adsorption Properties[J]. ADSORPTION SCIENCE & TECHNOLOGY,2015.
APA	Yang, H..,Liu, L..,Liang, B. S..,Yuan, H. M..,Tian, M. J..,...&Huang, Y..(2015).Vesicle-like and 3D-hexagonal Mesoporous SiO2: Preparation and Laccase Adsorption Properties.ADSORPTION SCIENCE & TECHNOLOGY.
MLA	Yang, H.,et al."Vesicle-like and 3D-hexagonal Mesoporous SiO2: Preparation and Laccase Adsorption Properties".ADSORPTION SCIENCE & TECHNOLOGY (2015).