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Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 520:590-596
Modified nanosilica powder was prepared with a sol-gel method using a tetraethoxysilane (TEOS) and γ-amino propyltriethoxysilane (APTES) mixture as the starting materials and ethanol as solvent, followed by the addition of water. The xerogels obtain