Organosilicon dendritic networks in porous ceramics for water purification

被引:52
作者
Arkas, M [1 ]
Tsiourvas, D [1 ]
Paleos, CM [1 ]
机构
[1] NCSR Demokritos, Inst Phys Chem, GR-15310 Athens, Greece
关键词
D O I
10.1021/cm047981p
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Triethoxysilyl-functionalized poly(propylene imine) (DAB32) dendrimer and poly(ethylene imine) (PEI5) hyperbranched polymer were conveniently prepared in chloroform and were subsequently allowed to impregnate porous ceramic filters. Following hydrolysis of triethoxysilyl moieties to Si-OH, polycondensation occurred affording networks containing Si-O-Si bridges with simultaneous formation of Si-O-M bridges resulting from the interaction of Si-OH with M-OH of the ceramic surface. In this manner, covalent binding of the organosilicon dendritic polymers is achieved at the ceramic surface. These porous ceramic filters, impregnated with organosilicon dendritic polymers, were employed for water purification. The concentration of polycyclic aromatic compounds in water was reduced to the level of a few ppb by continuous filtration of contaminated water through these filters. The filters loaded with pollutants were effectively regenerated by treatment with acetonitrile.
引用
收藏
页码:3439 / 3444
页数:6
相关论文
共 71 条
[1]  
ARDOIN N, 1995, B SOC CHIM FR, V132, P875
[2]   Functional dendrimeric "nanosponges" for the removal of polycyclic aromatic hydrocarbons from water [J].
Arkas, M ;
Tsiourvas, D ;
Paleos, CM .
CHEMISTRY OF MATERIALS, 2003, 15 (14) :2844-2847
[3]  
ARKAS M, IN PRESS J APPL POLY
[4]   Dendrimers: a new class of nanoscopic containers and delivery devices [J].
Aulenta, F ;
Hayes, W ;
Rannard, S .
EUROPEAN POLYMER JOURNAL, 2003, 39 (09) :1741-1771
[5]  
BALOGH L, 1999, Patent No. 5938934
[6]  
Bellamy L.J., 1966, INFRARED SPECTRA COM, P341
[7]   Dendrimers in drug research [J].
Boas, U ;
Heegaard, PMH .
CHEMICAL SOCIETY REVIEWS, 2004, 33 (01) :43-63
[8]   About dendrimers: Structure, physical properties, and applications [J].
Bosman, AW ;
Janssen, HM ;
Meijer, EW .
CHEMICAL REVIEWS, 1999, 99 (07) :1665-1688
[9]  
BREINBAUER R, 2000, ANGEW CHEM INT EDIT, V39, P2498
[10]  
BUBECK RA, 2001, POLYM MAT SCI ENG, V84, P866