Functionalized monolayers on ordered mesoporous supports

被引:1493
作者
Feng, X
Fryxell, GE
Wang, LQ
Kim, AY
Liu, J
Kemner, KM
机构
[1] PACIFIC NW LAB, RICHLAND, WA 99352 USA
[2] ARGONNE NATL LAB, ARGONNE, IL 60439 USA
关键词
D O I
10.1126/science.276.5314.923
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Mesoporous silica materials containing functionalized organic monolayers have been synthesized, Solid-state nuclear magnetic resonance suggests that a cross-linked monolayer of mercaptopropylsilane was covalently bound to mesoporous silica and closely packed on the surface. The relative surface coverage of the monolayers can be systematically varied up to 76 percent. These materials are extremely efficient in removing mercury and other heavy metals from both aqueous and nonaqueous waste streams, with distribution coefficients up to 340,000. The stability of these materials and the potential to regenerate and reuse them have also been demonstrated. The surface modification scheme reported here enables rational design of the surface properties of tailored porous materials and may lead to the synthesis of more sophisticated functionalized composites for environmental and industrial applications.
引用
收藏
页码:923 / 926
页数:4
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共 32 条
[1]  
Anthony R. G., 1993, Waste Management, V13, P503, DOI 10.1016/0956-053X(93)90080-G
[2]   Structure and chain dynamics of alkanethiol-capped gold colloids [J].
Badia, A ;
Gao, W ;
Singh, S ;
Demers, L ;
Cuccia, L ;
Reven, L .
LANGMUIR, 1996, 12 (05) :1262-1269
[3]   FORMATION OF MONOLAYER FILMS BY THE SPONTANEOUS ASSEMBLY OF ORGANIC THIOLS FROM SOLUTION ONTO GOLD [J].
BAIN, CD ;
TROUGHTON, EB ;
TAO, YT ;
EVALL, J ;
WHITESIDES, GM ;
NUZZO, RG .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (01) :321-335
[4]   Recent advances in the synthesis, characterization and applications of mesoporous molecular sieves [J].
Beck, JS ;
Vartuli, JC .
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 1996, 1 (01) :76-87
[5]   A NEW FAMILY OF MESOPOROUS MOLECULAR-SIEVES PREPARED WITH LIQUID-CRYSTAL TEMPLATES [J].
BECK, JS ;
VARTULI, JC ;
ROTH, WJ ;
LEONOWICZ, ME ;
KRESGE, CT ;
SCHMITT, KD ;
CHU, CTW ;
OLSON, DH ;
SHEPPARD, EW ;
MCCULLEN, SB ;
HIGGINS, JB ;
SCHLENKER, JL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (27) :10834-10843
[6]   Self-assembled monolayers: Recent developments and applications [J].
Bishop, AR ;
Nuzzo, RG .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 1996, 1 (01) :127-136
[7]   CERAMIC THIN-FILM FORMATION ON FUNCTIONALIZED INTERFACES THROUGH BIOMIMETIC PROCESSING [J].
BUNKER, BC ;
RIEKE, PC ;
TARASEVICH, BJ ;
CAMPBELL, AA ;
FRYXELL, GE ;
GRAFF, GL ;
SONG, L ;
LIU, J ;
VIRDEN, JW ;
MCVAY, GL .
SCIENCE, 1994, 264 (5155) :48-55
[8]   Biomimetic mineralization in and on polymers [J].
Calvert, P ;
Rieke, P .
CHEMISTRY OF MATERIALS, 1996, 8 (08) :1715-1727
[9]   BIOMINERALIZATION - ADVANCES IN MUSSEL BUILDING [J].
CALVERT, P .
NATURE, 1988, 334 (6184) :651-652
[10]   Nucleophilic displacements in mixed self-assembled monolayers [J].
Fryxell, GE ;
Rieke, PC ;
Wood, LL ;
Engelhard, MH ;
Williford, RE ;
Graff, GL ;
Campbell, AA ;
Wiacek, RJ ;
Lee, L ;
Halverson, A .
LANGMUIR, 1996, 12 (21) :5064-5075