介绍纳米粘土和二氧化硅基复合材料作为改善土壤化学和力学性能的新方法

Q3 Engineering

Nanoscience and Nanotechnology - Asia Pub Date : 2021-10-04 DOI:10.2174/2210681211666211004104152

H. Dehestani, A. Haddad, H. Karimi-Maleh

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引用次数: 0

摘要

层状硅酸盐（纳米粘土）是由粘土矿物衍生而来的新型纳米材料，在催化剂、土壤工业等不同领域有着广泛的应用。纳米粘土是一种具有不同衍生物的天然无机矿物。蒙脱石是一种众所周知的纳米粘土，由2:1的层状结构组成，两个二氧化硅四面体夹着一个氧化铝八面体。在自然界中，纳米粘土既有结晶形式（层状硅酸盐），也有非结晶形式（伊莫戈莱特）。掺入聚合物基质中的纳米粘土已证明具有显著的改善土壤拉伸和阻隔性能的能力。纳米粘土由于其高表面积和多孔结构，在提高土壤质量方面发挥着至关重要的作用。另一方面，由于砂粒的正电荷和粘土颗粒的化学成分，带负电荷的粘土颗粒有助于创造改善土壤性质的良好条件。据我们所知，目前还没有任何关于纳米粘土在土壤样品中作用的综述论文。本文介绍了纳米粘土化合物在改善土壤样品性能方面的作用，并介绍了土壤样品中使用的不同类型的改性纳米粘土。研究结果表明，具有复杂结构的纳米粘土是改善土壤样品质量的有用纳米材料。

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Introducing nanoclay and silica-based composites as a new approach for improving chemical and mechanical properties of soil, A review

Layered silicates (nanoclay) are new types of nanomaterials derived from clay minerals with wide range application in different fields such as catalysts, soil industry and etc. Nanoclays are wide ranges of naturally occurring inorganic minerals with different derivatives. Montmorillonite is a well-known nanoclay consisting of 2:1 layered structure with two-silica tetrahedron sandwiching an alumina octahedron. In nature, nanoclays can be found in both crystalline (phyllosilicates) and non-crystalline (imogolite) forms. . Nanoclays incorporated into polymer matrices have demonstrated a significant capability to improve the tensile and barrier properties of soil. Nanoclays play a vital role in enhancing soil quality due to its high surface area and porous structure. On the other hand, due to the positive charge of sand grains and the chemical compositions of clay particles, the negatively charged clay particles help to create a good condition to improving soil properties. According to the best of our knowledge, there is not any review paper for study the role of nanoclays on soil samples. This review paper describes the role of nanoclay compounds in the improved properties of soil samples and introduces different types of modified nanoclays used in soil samples. Reported results showed nanoclays with the complex structures are useful nanomaterials for improving the quality of soil samples.

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来源期刊

Nanoscience and Nanotechnology - Asia Engineering-Engineering (all)

CiteScore

1.90

自引率

0.00%

发文量

期刊介绍： Nanoscience & Nanotechnology-Asia publishes expert reviews, original research articles, letters and guest edited issues on all the most recent advances in nanoscience and nanotechnology with an emphasis on research in Asia and Japan. All aspects of the field are represented including chemistry, physics, materials science, biology and engineering mainly covering the following; synthesis, characterization, assembly, theory, and simulation of nanostructures (nanomaterials and assemblies, nanodevices, nano-bubbles, nano-droplets, nanofluidics, and self-assembled structures), nanofabrication, nanobiotechnology, nanomedicine and methods and tools for nanoscience and nanotechnology.