Stavitskaya Anna, Rubtsova Maria, Glotov Aleksandr, Vinokurov Vladimir, Vutolkina Anna, Fakhrullin Rawil, Lvov Yuri
Department of Physical and Colloid Chemistry, Gubkin Russian State University of Oil and Gas Moscow 119991 Russian Federation
Chemistry Department, M. Lomonosov Moscow State University Moscow 119991 Russian Federation.
Nanoscale Adv. 2022 Apr 26;4(13):2823-2835. doi: 10.1039/d2na00163b. eCollection 2022 Jun 28.
A nanoarchitectural approach to the design of functional nanomaterials based on natural aluminosilicate nanotubes and their catalysis, and practical applications are described in this paper. We focused on the buildup of hybrid core-shell systems with metallic or organic molecules encased in aluminosilicate walls, and nanotube templates for structured silica and zeolite preparation. The basis for such an architectural design is a unique AlO/SiO dual chemistry of 50 nm diameter halloysite tubes. Their structure and site dependent properties are well combined with biocompatibility, environmental safety, and abundant availability, which makes the described functional systems scalable for industrial applications. In these organic/ceramic hetero systems, we outline drug, dye and chemical inhibitor loading inside the clay nanotubes, accomplished with their silane or amphiphile molecule surface modifications. For metal-ceramic tubule composites, we detailed the encapsulation of 2-5 nm Au, Ru, Pt, and Ag particles, Ni and Co oxides, NiMo, and quantum dots of CdZn sulfides into the lumens or their attachment at the outside surface. These metal-clay core-shell nanosystems show high catalytic efficiency with increased mechanical and temperature stabilities. The combination of halloysite nanotubes with mesoporous MCM-41 silica allowed for a synergetic enhancement of catalysis properties. Finally, we outlined the clay nanotubes' self-assembly into organized arrays with orientation and ordering similar to nematic liquid crystals, and these systems are applicable for life-related applications, such as petroleum spill bioremediation, antimicrobial protection, wound healing, and human hair coloring.
本文描述了一种基于天然铝硅酸盐纳米管设计功能纳米材料的纳米结构方法及其催化作用和实际应用。我们专注于构建杂化核壳系统，其中金属或有机分子包裹在铝硅酸盐壁中，以及用于制备结构化二氧化硅和沸石的纳米管模板。这种结构设计的基础是直径为50纳米的埃洛石管独特的AlO/SiO二元化学性质。它们的结构和位点依赖性特性与生物相容性、环境安全性和丰富的可得性良好结合，这使得所描述的功能系统可扩展用于工业应用。在这些有机/陶瓷异质系统中，我们概述了通过硅烷或两亲分子表面改性在粘土纳米管内加载药物、染料和化学抑制剂的情况。对于金属-陶瓷微管复合材料，我们详细介绍了将2-5纳米的金、钌、铂和银颗粒、镍和钴的氧化物、镍钼以及硫化镉锌量子点封装到管腔中或附着在其外表面的情况。这些金属-粘土核壳纳米系统显示出高催化效率，同时机械稳定性和热稳定性有所提高。埃洛石纳米管与介孔MCM-41二氧化硅的结合实现了催化性能的协同增强。最后，我们概述了粘土纳米管自组装成具有类似于向列型液晶的取向和有序性的有序阵列，并且这些系统适用于与生命相关的应用，如石油泄漏生物修复、抗菌保护、伤口愈合和人类头发染色。
