Preparation of Ag-Doped Composite Carbon Molecular Sieves
Dun Deng1
1School of Materials Science and Chemical Engineering, Anhui University of Architecture, Hefei 230022, P.R China 2Anhui Key Laboratory of Advanced Building Materials, Anhui University of Architecture, Hefei 230022, P.R. China *Corresponding author: E-mail: liujin@aiai.edu.cn
Jin Liu1
1School of Materials Science and Chemical Engineering, Anhui University of Architecture, Hefei 230022, P.R China 2Anhui Key Laboratory of Advanced Building Materials, Anhui University of Architecture, Hefei 230022, P.R. China *Corresponding author: E-mail: liujin@aiai.edu.cn
Zhen Li1
1School of Materials Science and Chemical Engineering, Anhui University of Architecture, Hefei 230022, P.R China 2Anhui Key Laboratory of Advanced Building Materials, Anhui University of Architecture, Hefei 230022, P.R. China *Corresponding author: E-mail: liujin@aiai.edu.cn
Qian Wang1
1School of Materials Science and Chemical Engineering, Anhui University of Architecture, Hefei 230022, P.R China 2Anhui Key Laboratory of Advanced Building Materials, Anhui University of Architecture, Hefei 230022, P.R. China *Corresponding author: E-mail: liujin@aiai.edu.cn
Asian Journal of Chemistry,
Vol. 23 No. 5 (2011): Vol 23 Issue 5
The copolymer of acrylonitrile and g-methacryloxypropyltrimethoxysilane (KH-570) was synthesized with Ag+ by inverse suspension copolymerization as carbon precursor, through carbonization and co-reduction, to obtained Ag-doped composite carbon molecular sieves . The thermal stability and microstructure of samples were studied by TGA, FTIR, XRD and nitrogen adsorption at 77 K, respectively. Result showed that during the high-heat treatment, precursor displayed similar pyrolysis behaviour, carbon residue increasing from 12 to 31 % with KH-570 content decreased; after carbonization, the inorganic phase (Si) was incorporated into carbon molecular sieves successfully and Ag+ was reduced to silver form. With the KH-570 content increasing, carbonization products possess a higher specific surface area (reached 1056 m2/g) and larger micropore volume (reached 0.45 cm3/g, account for ca. 70 %).
