文献类型：专利

英文题名：Selective functionalization of porous silicon oxide nanomaterial by dissolving ethyl orthosilicate in alcohol, adding tetrahydrofuran solution, adding into silicon oxide nanomaterial precursor, calcining, screening, and aminating

作者：NIU D;LI Y;LI N;JIANG Y;PAN S

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN106668875-A

申请日：2017-01-06

公开日：2017-05-17

语种：英文

收录：DERWENT

摘要：NOVELTY - Selective functionalization of porous silicon oxide nanomaterial involves dissolving block copolymer in tetrahydrofuran, and dissolving cationic surfactant in alkaline water; dissolving ethyl orthosilicate in alcohol, adding tetrahydrofuran solution to obtain mixed solution, and adding into porous silicon oxide nanomaterial precursor; calcining and screening; dispersing shell layer in N-methyl pyrrolidone; performing amination with amino-group functionalized; and dispering second porous silicon oxide nanomaterial in ethanol and ammonium nitrate solution, and extracting. USE - Method for selective functionalization of porous silicon oxide nanomaterial (claimed). ADVANTAGE - The method has simple preparation process and good repeatability. DETAILED DESCRIPTION - Selective functionalization of porous silicon oxide nanomaterial comprises dissolving block copolymer in tetrahydrofuran to form tetrahydrofuran solution, and dissolving cationic surfactant in alkaline water to form water solution; dissolving ethyl orthosilicate in alcohol to form alcohol solution, adding tetrahydrofuran solution while stirring to obtain mixed solution, adding mixed solution into porous silicon oxide nanomaterial precursor in alcohol solution while stirring; calcining porous silicon oxide nanomaterial precursor, and screening multistage-pore silicon oxide nanomaterial to obtain shell layer; dispersing shell layer in N-methyl pyrrolidone to obtain first porous silicon oxide nanomaterial; performing amination on first porous silicon oxide nanomaterial with amino-group functionalized to obtain second porous silicon oxide nanomaterial; and dispering second porous silicon oxide nanomaterial in ethanol and ammonium nitrate solution, and performing multistage extraction. The cationic surfactant is hexadecyl trimethyl ammonium bromide, octadecyl trimethyl ammonium bromide or hexadecyl dimethyl ammonium bromide.