| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Periodic MesoporousOrganosilicas(PMOs) Materials forApplications of Metal Ion Adsorption. |
| 초록 |
Bissilylated urea bridged periodic mesoporous organosilica (BU-PMO) precursor have been successfully synthesized through co-condensation of 2,6-diaminopyridine and triethoxysilylpropylisocyanate at 85 oC under N2 atmosphere for 24 hours. The bissilylated urea precursor has been utilized to prepare BU-PMO with various BU precursor to tetraethylorthosilicate (TEOS) ratios, using Pluronic P123 as a structure directing agent in acidic conditions. The surfactant was removed by solvent extraction method using 1% HCl-ethanol at 60oC.The amine group of BU-PMO was further modified using chlorosulphonic acid in chloroform solvent. Chemically functionalized materials were shown to be suitable for the adsorption of metal cations with high selectivity from aqueous solution. The adsorbed metal ion amounts were determined by inductively-coupled plasma-atomic emission spectroscopy (ICP-AES) analysis. |
| 저자 |
이상현, 산타무티, 홍상현, 박성수, 하창식
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| 소속 |
부산대 |
| 키워드 |
bissilylated urea; periodic mesoporousorganosilica; metal ion
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| E-Mail |
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