Overview

The book first reviews the main advances in methods of obtaining synthetic montmorillonite for environmental and biomedical areas. The perspectives and main challenges in the application of these materials is critically analysed. The authors next study Polyhydroxy metal complexes of Al, Fe, Zr, Cr and Ti (inorganic pillarizing agents) for the synthesis of pillared clays. Information is provided on the possibility of using amorphous aluminosilicates as a modifying additive in the formulation of cement-based dry building mixtures. The physicochemical properties of the additive are considered, and the results of XRD and DTA analyzes are presented. The authors investigate the molecular orientation and surface morphology of organized molecular films with regard to solid-state structures for organo-modified aluminosilicates by a surface pressure-area isotherm, in-plane and out-of plane X-ray diffraction, and atomic force microscopy. A new method for the synthesis of amorphous mesoporous aluminosilicates with acidic properties and a narrow pore size distribution in the range of 2-7 nm is also explored. The urease immobilization of composite adsorbents polyacrylamide -- bentonite, polyacrylamide -- chitosan, and polyacrylamide chitosan -- bentonite is assessed, produced from polyacrylamide as a hydrogel, bentonite as an aluminosilicate mineral, and chitosan as a polysaccharide. Following this, the authors provide a brief overview of literature data where crystalline aluminosilicates have been utilized for the capture and immobilization of radionuclides. The physiochemical properties of as-synthesized layered aluminosilicate are characterized by small angle PXRD, FTIR, porosity studies, thermal studies, 27Al MAS NMR, and morphological studies. Subsequently, this compilation addresses the way in which magnetic nanoparticles have proven to be frequently occurring building blocks for hybrid structure construction and, moreover, have shown innovative prospects as multifunctional adsorbents. Modern methods for the synthesis of highly dispersed micro- and micromesoporous mordenite with a high degree of crystallinity, as well as high crystallinity mordenite with a hierarchical porous structure, methods for modifying the mentioned crystalline aluminosilicates as a result of postsynthetic treatments, and modern adsorption and catalytic systems based on them are described. Next, the high activity and selectivity of high crystallinity zeolite Y with a hierarchical porous structure in the synthesis of practically important oligomers of various unsaturated compounds is established. The authors highlight that the aluminosilicate present in kaolin may also be used in the production of zeolitic materials, and some details of this application are explained. The adsorptive features of PAAm-Ch-Z for Th4+ are investigated in view of its dependency on pH, concentration, time, temperature and ionic strength. The parameters derived from the compatibility of experimentally obtained data to Langmuir, Freundlich and Dubinin-Radushkevich, van t'Hoff, pseudo frist-/second-order and Weber Morris models are utilized in the evaluation of adsorption and its thermodynamics and kinetics. Lastly, the authors consider a possible mechanism for the generation of an acetyl-zeolite intermediate via transfer from different acetyl donors through theoretical studies using a cluster model of H-ZSM-5 zeolite designed by three TO4 tetrahedral units.

Full Product Details

Author:   Nero Regina Blevins
Publisher:   Nova Science Publishers Inc
Imprint:   Nova Science Publishers Inc
Weight:   1.088kg
ISBN:  

9781536172508

ISBN 10:   1536172502
Pages:   496
Publication Date:   22 April 2020
Audience:   Professional and scholarly ,  College/higher education ,  Professional & Vocational ,  Postgraduate, Research & Scholarly
Format:   Hardback
Publisher's Status:   Active
Availability:   In stock  
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Table of Contents

Preface; Montmorillonite-Based Aluminosilicate Materials: Properties and Applications; Pillared Clays, a Class of Heterogeneous Catalysts Derived from Modified Clay Minerals: Properties and Uses in Waste Pyrolysis; Application of Synthetic Aluminosilicates in Adhesive Dry Construction Mixtures; Surface Modification of Aluminosilicate by Amphiphiles: Fabrication of Ultrathin Films; Amorphous Mesoporous Aluminosilicates in the Synthesis of N-Heterocyclic Compounds; Composites of Bentonite, Chitosan and Polyacrylamide: Preparation, Characterization, and Application in Urease Immobilization; Crystalline Aluminosilicates for Radionuclide Remediation; Synthesis of Layered Aluminosilicate by Direct Method; Clinoptilolite-Rich Tuff A Native Aluminosilicate Nanocomposite for the Removal of Trace Quantities of Pollutants; Modern Syntheses and the Use of MOR Type Zeolite in Adsorption and Catalysis; Oligomerization of Unsaturated Compounds in the Presence of Hierarchical Zeolite Y; Preparation and Characterization of Chitosan-Zeolite Composite@Polyacrylamide: Adsorptive Features for Thorium; Application of Kaolin as an Aluminosilicate Source to Produce Geopolymer and Zeolitic Materials; A DFT Study of the Acetyl Transfer Reaction Catalyzed by H-ZSM-5 Zeolite Using a 3T-Cluster Approach; Index.

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