Fabrication of Mesoporous Silica/Alumina Hybrid Membrane Film Nanocomposites using Template Sol-Gel Synthesis of Amphiphilic Triphenylene

4th International Conference on Advanced Materials Science and Technology

Lintang, H.O.^1,2 ; Jalani, M.A.^3 ; Yuliati, L.^1,2 ; Salleh, M.M.^2

Ma Chung Research Center for Photosynthetic Pigments, Universitas Ma Chung, East Java, Malang

65151, Indonesia^1

Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, UTM, Johor, Johor Bahru

81310, Malaysia^2

Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, UTM, Johor, Johor Bahru

81310, Malaysia^3

关键词: Anodic aluminum oxide membranes;    Field emission scanning electron microscopes;    Hexagonal arrangements;    Hybrid nanocomposites;    Hybrid thin film;    Nano-composite membranes;    Sol;    Gel synthesis;    Triphenylenes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/202/1/012003/pdf
DOI  :  10.1088/1757-899X/202/1/012003

来源: IOP

【 摘 要 】

Herein we reported that by introducing a one-dimensional (1D) substrate with a porous structure such as anodic aluminum oxide (AAO) membrane, mesoporous silica/alumina hybrid nanocomposites were successfully fabricated by using amphiphilic triphenylene (TPC10TEG) as a template in sol-gel synthesis (TPC10TEG/silicahex). For the optical study of the nanocomposites, TPC10TEG/silicahexshowed absorption peak at 264 nm due to the ordered and long-range π-π stacking of the disc-like aromatic triphenylene core. Moreover, the hexagonal arrangement of TPC10TEG/silicahexwas proven based on their diffraction peaks of d100and d200at 2θ = 2.52° and 5.04° and images of transmission electron microscopy (TEM), respectively. For fabrication of mesoporous silica/alumina hybrid membrane, TPC10TEG/silicahexwas drop-casted onto AAO membrane for penetration into the porous structure via gravity. X-ray diffraction (XRD) analysis on the resulted hybrid nanocomposites showed that the diffraction peaks of d100and d200of TPC10TEG/silicahexwere still preserved, indicating that the hexagonal arrangements of mesoporous silica were maintained even on AAO substrate. The morphology study on the hybrid nanocomposites using TEM, scanning electron microscope (SEM) and field emission scanning electron microscope (FE-SEM) showed the successful filling of most AAO channels with the TPC10TEG/silicahexnanocomposites.