期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 98, 期 1-3, 页码 344-351出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.micromeso.2006.09.041
关键词
interwoven networks; porous titania; hierarchy; eggshell membrane; N-2 adsorption
Hierarchical mesoporous titania with interwoven networks was successfully prepared through a surface sol-gel process followed by a calcination treatment and using eggshell membrane (ESM) as the biotemplate. The biotemplating synthesis was systematically investigated by controlling calcination temperature (550-800 degrees C), heating rate (1-35 degrees C/min), impregnant pH value (1-3), and so on. Different from traditional immersion techniques, the nucleation, the growth, and the assembly of mesoporous TiO2 in our work depended more on some reactions involving ESM biomacromolecules. As-prepared ESM-morphic TiO2 was composed of intersectant fibers assembled by 6 nm nanocrystallites at 3D with hierarchical pores from 2 nm up to 8 mu m. (C) 2006 Elsevier Inc. All rights reserved.
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