Silylated rice husk MCM-41 and its binary adsorption of water–toluene mixture |
| |
| Authors: | Nimit Ketcome Nurak Grisdanurak Siriluk Chiarakorn |
| |
| Affiliation: | (1) Department of Chemical Engineering, Faculty of Engineering, National Center of Excellence for Environmental and Hazardous Waste Management, Thammasat University, Pathumtani, 12120, Thailand;(2) Division of Environmental Technology, School of Energy, Environment and Materials, King Mongkut’s University of Technology Thonburi, Bangkok, 10140, Thailand |
| |
| Abstract: | Mesoporous material, MCM-41, synthesized from rice husk (RH-MCM-41) was modified by loading silylating agent (either trimethylchlorosilane
(TMCS), dimethyl-dichlorosilane (DMCS) or phenyl-trichlorosilane (PTCS)) with different concentrations (1–9 wt.%), and aging
times, varied between 1, 6, 9, and 24 h. Properties of the silylated MCM-41 samples were characterized by XRD, FTIR, N2 adsorption, and the binary adsorption of a water–toluene mixture for the breakthrough curves; afterwards, the hydrophobicity
indices were determined. Silylating agent caused RH-MCM-41 to possess smaller average pore size and surface area, compared
to parent RH-MCM-41. Using a silylating condition of 1 wt.% TMCS for 1 h, modified RH-MCM-41 showed satisfactory enhancement
its of hydrophobicity without any significant surface modification. Due to the substitution of silane group onto RH-MCM-41,
the hydrophobicity index was increased. |
| |
| Keywords: | RH-MCM-41 Binary adsorption Hydrophobicity |
| 本文献已被 SpringerLink 等数据库收录！ |
|
