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首页> 外文期刊>Applied Surface Science >Direct Synthesis And Characterization Of Phenyl-functionalized Sba-15
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Direct Synthesis And Characterization Of Phenyl-functionalized Sba-15

机译：苯基官能化Sba-15的直接合成与表征

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摘要

Phenyl-functionalized SBA-15 materials (Ph-SBA-15) were directly synthesized by using tri-block copolymer Pluronic P123 as templating agent under acidic conditions. The samples were characterized by Fourier transform infrared (FT-IR) spectra, X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), thermogravimetry analysis (TGA) and N_2 adsorption-desorption. The results show that the phenyl groups are covalently attached to the pore wall of SBA-15 after modification. The functionalized materials still preserve a desirable two-dimensional P6mm hexagonal structure and have large specific surface area and pore volume although the molar ratio of phenyltrimethoxysilane in total silica precursors is as high as 23.0%.
机译：以三嵌段共聚物Pluronic P123为模板剂，在酸性条件下，直接合成了苯官能化的SBA-15材料（Ph-SBA-15）。通过傅立叶变换红外光谱，X射线衍射，透射电子显微镜，扫描电子显微镜，热重分析和N_2吸附-脱附对样品进行表征。结果表明，改性后，苯基共价附于SBA-15的孔壁。尽管在全部二氧化硅前体中苯基三甲氧基硅烷的摩尔比高达23.0％，但是功能化材料仍保持期望的二维P6mm六边形结构并且具有大的比表面积和孔体积。

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