Preparation of mesoporous titanosilicate molecular sieves with a cage type 3D porous structure for cyclohexene epoxidation
作者： Chokkalingam Anand , Pavuluri Srinivasu , Gurudas P Mane , Siddulu N Talapaneni , Dattatray S Dhawale
DOI: 10.1016/J.MICROMESO.2012.05.014
关键词:
摘要: We report on the preparation of mesoporous titanosilicate with a 3D porous structure and Fm3m symmetry using Pluronic F127 as directing agent titanium isopropoxide source. The amount in silica framework materials is controlled by simple adjustment molar water to hydrochloric acid (nH2O/nHCl) ratio. different nSi/nTi ratios are also prepared varying source synthesis gel at an optimized nH2O/nHCl 463. structural order, textural parameters, morphology, nature co-ordination Ti species, content samples analyzed various techniques including X-ray diffraction (XRD), N2 adsorption, high resolution scanning electron microscopy (HRSEM), UV–vis diffused reflectance spectroscopy (UV–vis DRS), inductively coupled plasma emission (ICP), respectively. All exhibit well-ordered possess BET surface areas (673–941 m 2 g
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