Partial substitution of TEOS with pyridyl-silanes: A route to functionalizing inner wall of imogolite nanotubes

IF 5.3 2区地球科学 Q2 CHEMISTRY, PHYSICAL

Applied Clay Science Pub Date : 2025-05-15 DOI:10.1016/j.clay.2025.107861

Cristóbal Flores , Karen Manquián-Cerda , Carlos P. Silva , Jorge Pavez , Nicolás Arancibia-Miranda

引用次数: 0

Abstract

A new imogolite isostructure (Imo-Py) was obtained and characterized structurally and superficially, where 5 % of the TEOS was replaced by 2-(4-pyridylethyl)triethoxysilane. Incorporating the new organosilane did not cause significant inhibitions to nanotubular formation. However, an increase in the diameter and reactivity of the internal cavity of Imo-Py compared to imogolite was evidenced, attributable to the differences in charge and acidity properties of the incorporated functional groups. This study expands the family of imogolite-based nanostructures and could contribute to new technological applications.

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吡啶基硅烷部分取代正硅酸盐：一种实现伊莫长石纳米管内壁功能化的途径

得到了一种新的伊莫长石同工结构（Imo-Py），并对其进行了结构和表面表征，其中5%的TEOS被2-（4-吡啶乙基）三乙氧基硅烷取代。加入新的有机硅烷对纳米管的形成没有明显的抑制作用。然而，与伊莫高岭石相比，Imo-Py的内腔直径和反应性有所增加，这是由于掺入的官能团的电荷和酸性特性的差异。这项研究扩大了伊莫长石基纳米结构家族，并可能有助于新的技术应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Clay Science 地学-矿物学

CiteScore

10.30

自引率

10.70%

发文量

289

审稿时长

39 days

期刊介绍： Applied Clay Science aims to be an international journal attracting high quality scientific papers on clays and clay minerals, including research papers, reviews, and technical notes. The journal covers typical subjects of Fundamental and Applied Clay Science such as: • Synthesis and purification • Structural, crystallographic and mineralogical properties of clays and clay minerals • Thermal properties of clays and clay minerals • Physico-chemical properties including i) surface and interface properties; ii) thermodynamic properties; iii) mechanical properties • Interaction with water, with polar and apolar molecules • Colloidal properties and rheology • Adsorption, Intercalation, Ionic exchange • Genesis and deposits of clay minerals • Geology and geochemistry of clays • Modification of clays and clay minerals properties by thermal and physical treatments • Modification by chemical treatments with organic and inorganic molecules(organoclays, pillared clays) • Modification by biological microorganisms. etc...