人工晶体学报2018，Vol.47Issue(2)：326-332,337,8.
中空介孔SiO2纳米球的制备、改性及其对Al3+荧光识别研究
Preparation and Modification of Hollow Mesoporous SiO2Nanosphere and Study on Al3+Fluorescence Recognition
摘要
Abstract
Hollow mesoporous SiO 2is used as substrate material due to the structure of hollow porousity. Modified hollow mesoporous SiO 2with functional groups for fluorescent sensing is an important research field.In this paper by using polyacrylic acid(PAA)as the hollow template,pluronic F127 as the pore forming agent in alkaline ethanol system with TEOS(tetraethoxysilane)as the silicon source,the hollow mesoporous silica nanospheres were prepared.The effects of stirring speed and pluronic F 127 amount on the morphology and specific surface area of hollow mesoporous SiO 2nanospheres were systematically studied.The transmission electron microscope(TEM)and BET studies show that by adjusting the amount of F127 the specific surface area can be effectively controlled.Further studies shows that the hollow mesoporous SiO 2nanospheres modified by fluorescence can effectively detect Al 3+in aqueous solution,and the detection limit is 1.19×10 -7M.关键词
中空介孔SiO2纳米球/合成方法/Al3+荧光识别Key words
hollow mesoporous SiO 2nanosphere/synthesis method/Al3+fluorescence recognition分类
化学化工引用本文复制引用
李成阳,蔡佳达,涂全,陈子玉,王芙香,潘勤鹤,任国建..中空介孔SiO2纳米球的制备、改性及其对Al3+荧光识别研究[J].人工晶体学报,2018,47(2):326-332,337,8.基金项目
国家自然科学基金(21761010) （21761010）
海南省自然科学基金面上项目(20162018) （20162018）
