陕西科技大学学报（自然科学版）2017，Vol.35Issue(4)：44-48,5.
利用介孔氧化硅SBA-15浸渍吸附合成硅铁红色料
The synthesis of hematite-silica red pigments through mesoporoussilica SBA-15 impregnated and adsorbed method
摘要
Abstract
The highly ordered mesoporous silica SBA-15 was synthesized by hydrothermal method,using P123 as surfactant agent.The hematite-silica red pigment of α-Fe2O3 loaded mesoporous silica was synthesized through mesoporous silica impregnated and adsorbed in Fe(NO3)3 solution,then calcined at 600 ℃.The crystals structure,microstructure,specific surface area and pore size distribution of samples were characterized by XRD,TEM and BET.The results show that the mesoporous silica with hexagonally ordered pore array structure was synthesized by hydrothermal method.Its specific surface area was 609.318 6 m2/g and its average pore size 5.43 nm.In synthesis process,the dissolubility of the template agent P123 was influenced by hydrothermal temperature,leading to the specific surface area of the mesoporous silica decrease and pore size increase.The N2 absorption quantity and pore volume of the mesoporous silica obviously decrease after loading α-Fe2O3,yet its pore size have no change.The fact confirm that α-Fe2O3 enter into mesoporous canal of the mesoporous silica.Since the α-Fe2O3 chromophore were restricted in mesoporous canal,the particles size of the synthesized α-Fe2O3 is nanometer,and the hematite-silica red pigments present good reddish-brown.关键词
介孔二氧化硅/浸渍吸附法/硅铁红色料Key words
mesoporous silica/impregnated and adsorbed method/hematite-silica red pigments分类
通用工业技术引用本文复制引用
何选盟,李童心,徐艳,刘亚芹,牛利军,刘辉,王芬..利用介孔氧化硅SBA-15浸渍吸附合成硅铁红色料[J].陕西科技大学学报（自然科学版）,2017,35(4):44-48,5.基金项目
国家自然科学基金项目(51272147) （51272147）
