Porous organo-functionalized silica/clay hybrids.
Two negatively charged species of silica nanoparticles and exfoliated clay nanosheets have been successfully assembled into highly porous frameworks through a direct hybridization reaction with the help of a surface modification technique. In order to create attractive Coulombic interaction between two components, the surface of silica was modified with positively chargeable aminosilane coupling agents. Without any additional post-calcination, as-prepared hybrid materials are highly porous with the BET specific surface area of 480 m2/g.
Paek
Seung-Min
SM
Center for Intelligent Nano-Bio Materials (CINBM), Division of Nano sciences BK2y, Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea.
Lee
Sung-Reol
SR
Kang
Joo-Hee
JH
Hwang
Seong-Ju
SJ
Choy
Jin-Ho
JH
D000538:Aluminum Silicates; D000077215:Clay; D009930:Organic Chemicals / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
D000538:Aluminum Silicates; D009930:Organic Chemicals; D012822:Silicon Dioxide; D000077215:Clay