Nano Express

Nanoscale Research Letters

, Volume 4, Issue 11, pp 1257-1262

Open Access This content is freely available online to anyone, anywhere at any time.

Structural Characterization of Mesoporous Silica Nanofibers Synthesized Within Porous Alumina Membranes

  • Zhihong GongAffiliated withNanomaterials Research Institute, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics
  • , Guangbin JiAffiliated withNanomaterials Research Institute, College of Material Science and Technology, Nanjing University of Aeronautics and AstronauticsNational Laboratory of Solid State Microstructure and Department of Physics, Nanjing University Email author 
  • , Mingbo ZhengAffiliated withNanomaterials Research Institute, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics
  • , Xiaofeng ChangAffiliated withNanomaterials Research Institute, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics
  • , Weijie DaiAffiliated withNanomaterials Research Institute, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics
  • , Lijia PanAffiliated withNational Laboratory of Solid State Microstructure and Department of Physics, Nanjing University
  • , Yi ShiAffiliated withNational Laboratory of Solid State Microstructure and Department of Physics, Nanjing University
  • , Youdou ZhengAffiliated withNational Laboratory of Solid State Microstructure and Department of Physics, Nanjing University

Abstract

Mesoporous silica nanofibers were synthesized within the pores of the anodic aluminum oxide template using a simple sol–gel method. Transmission electron microscopy investigation indicated that the concentration of the structure-directing agent (EO20PO70EO20) had a significant impact on the mesostructure of mesoporous silica nanofibers. Samples with alignment of nanochannels along the axis of mesoporous silica nanofibers could be formed under the P123 concentration of 0.15 mg/mL. When the P123 concentration increased to 0.3 mg/mL, samples with a circular lamellar mesostructure could be obtained. The mechanism for the effect of the P123 concentration on the mesostructure of mesoporous silica nanofibres was proposed and discussed.

Keywords

Mesoporous silica Nanofiber Anodic aluminum oxide P123 Template synthesis