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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Functionalized mesoporous solids based on magadiite and [Al]-magadiite
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Functionalized mesoporous solids based on magadiite and [Al]-magadiite

机译：基于菱铁矿和[Al]-菱铁矿的功能化介孔固体

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摘要

Novel hybrid mesoporous and functionalized materials with controllable surface area and pore dimensions with functional basic sites (–NH_2) were synthesized from magadiite and [Al]-magadiite as layered silicate precursors. The variable pore structure and properties of these materials were investigated in these solids by using different CTA~+/Na~+ (CTA~+ = cetyltrimethylammonium cation) molar ratios in the pre-modification step with aminopropyltriethoxysilane (APTS) and tetraethoxysilane (TEOS). Characterizations were carried out by different techniques to probe the effects of the amounts of interlayer surfactant in the synthesis of the pillared and/or grafted materials. The crystalline structures of magadiite and [Al]-magadiite layers were maintained as evidenced by FT-IR and SAED and contain pillars and aminopropyl groups in the interlayer space. The hybrid solids were compared to the pillared forms (H. M. Moura, F. A. Bonk and H. O. Pastore, Eur. J. Mineral., 2012, 24, 903) and to the aminopropyl-grafted forms and presented the properties of both solids with the CO_2 adsorption capability improved considerably.
机译：以层状硅酸盐前驱体菱铁矿和[Al]-菱铁矿为原料，合成了具有可控表面积和孔尺寸且具有功能性基本位点（–NH_2）的新型介孔和功能化杂化材料。在氨基丙基三乙氧基硅烷（APTS）和四乙氧基硅烷（TEOS）的预改性步骤中，通过使用不同的CTA〜+ / Na〜+（CTA〜+ =十六烷基三甲基铵阳离子）摩尔比，研究了这些材料在这些固体中的可变孔结构和性质。 。通过不同的技术进行表征，以探讨夹层和/或接枝材料合成中层间表面活性剂的量的影响。 FT-IR和SAED证实了辉绿岩和[Al]-辉绿岩层的晶体结构得以保持，并且在层间空间中包含柱状和氨丙基。将杂化固体与柱状形式（HM Moura，FA Bonk和HO Pastore，Eur.J.Mineral。，2012，24，903）和氨丙基接枝形式进行了比较，并展示了两种固体在CO_2吸附下的性质能力大大提高。

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