摘要
Using natural Na montmorillonite as the host clay, porous silica-pillared montmorillonites (Si-PILC) were prepared by the template synthesis method. Furthermore, the texture and structure of such composite materials were investigated by using modern several physicochemical techniques such as powder X-ray Diffraction (XRD), X-ray Fluorescence (XRF), Fourier Transformation Infra-red Spectra (FT-IR), and N2 adsorption/desorption measurements. The results reveal that tetrathylorthosilicate (TEOS) agent has been successfully intercalated into the montmorillonite and the characteristic d001 spacing of Si-PILC increases from 1.28nm to 3.15nm. The resultant products with large gallery height possess BJH pore volume as large as 0.30cm^3/g, remarkably high BET specific surface area of over 592.0m^2/g, pore size distribution in the mesopore region 3.3nm^4.3nm after thermal treatment at 800℃.
Using natural Na montmorillonite as the host clay, porous silica-pillared montmorillonites （Si-PILC） were prepared by the template synthesis method. Furthermore, the texture and structure of such composite materials were investigated by using modem several physicochemical techniques such as powder X-ray Diffraction （XRD）, X-ray Fluorescence （XRF）, Fourier Transformation Infra-red Spectra （FT-IR）, and N2 adsorption/ desorption measurements. The results reveal that tetrathylorthosilicate （TEOS） agent has been successfully intercalated into the montmorillonite and the characteristic d001 spacing of Si-PILC increases from 1.28 nm to 3.15 nm. The resultant products with large gallery height possess BJH pore volume as large as 0.30 cm^3/g,remarkably high BET specific surface area of over 592.0 m^2/g, pore size distribution in the mesopore region 3.3 nm- 4.3 nm after thermal treatment at 800 ℃.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2008年第2期250-253,共4页
Journal of Fuel Chemistry and Technology
基金
国家重点基础研究发展规划(973计划,2004CB217807)
唐山市重点实验室项目(043624018-7)
