一种可以应用于生化吸附分离的中孔分子筛微球  

SYNTHESIS OF SPHERICAL MESOPOROUS ZEOLITE FOR ADSORPTION AND SEPARATION OF BIOMOLECULES

作　　者：朱娜[1] 梁栋[2] 

机构地区：[1]山西大学环境与资源学院,山西太原030006 [2]太原理工大学精细化学研究所,山西太原030024

出　　处：《陕西科技大学学报（自然科学版）》2007年第3期21-23,共3页Journal of Shaanxi University of Science & Technology

摘　　要：以嵌段共聚物P123（EO20PO70EO20）为模板剂,三甲苯（TMB）为扩孔剂,NaCl为促晶化剂,合成了一种孔径为10 nm,尺寸为10-20μm的有序中孔SBA-15微球,其比表面积小于700 m^2/g,并采用XRD、SEM、TEM等对所合成的微球进行了表征。吸附分离试验表明,分子尺寸大于分子筛孔径的BSA吸附量很小,而对分子大小在孔径范围内的LYS饱和吸附可以达到700 mg/g.The synthesis of spherical particles of mesoporous silicates （SBA-15） with mesopore diameter up to 10 nm, surface area 〈700 m^2/g and particle diameter of 10-20 μm has been achieved. The SBA-15 spheres were obtained using pluronies P123 （EO20POToEO20） as a surfactant, TMB as swelling agent, and NaCI as accelerating condensation. The samples were characterized using XRD, SEM, TEM. The spherical SBA-15 particles was used for protein adsorption, and results show they have a very high capacity of 700 mg/g for LYS while BSA almost none.

关 键 词：中孔分子筛 微球 择形效应 蛋白质 

分 类 号：TQ424.25[化学工程]