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Zeolitic Materials: Structure, Properties, and Applications II

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Porous Materials".

Deadline for manuscript submissions: 20 July 2024 | Viewed by 811

Special Issue Editors


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Guest Editor
ACLabs-Laboratories of Applied Chemistry, Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, P.le V. Tecchio 80, 80125 Naples, Italy
Interests: natural and synthetic zeolites; adsorption and ion exchange properties; wastewater treatments; zeolite surface modification; drug delivery; emerging contaminant treatment
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E-Mail Website
Guest Editor
ACLabs—Applied Chemistry Labs, Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, P.le V. Tecchio 80, 80125 Naples, Italy
Interests: materials engineering; porous materials; zeolites; construction materials; hybrid foams; geopolymers; sustainable building materials; material recycling
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
ACLabs—Applied Chemistry Labs, Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, P.le V. Tecchio 80, 80125 Naples, Italy
Interests: materials engineering; porous materials; zeolite and related materials for energy and environmental applications; adsorption and ion exchange; sustainable construction materials
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Earth Sciences, Environment and Resources, Federico II University, Monte Sant\'Angelo Campus (L Building), Via Cinthia, 21-80126 Naples, Italy
Interests: natural zeolites and their applications, such as wastewater treatment and soil remediation; geomaterials; construction and building stone materials; minerogenetic processes in pyroclastic deposits of central-southern Italy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As is well known, zeolites have received a great deal of attention from the scientific community in recent decades thanks to their easy accessibility and their peculiar properties. Zeolites, which are aluminosilicates of alkaline and alkaline earth metals, are characterized by open structures with a tetrahedral geometry that give rise to an ordered three-dimensional framework with a negative charge, typically balanced by cations placed together with water molecules in cavities and/or channels of microporosity dimensions. Due to these outstanding features, zeolites, both of sedimentary origin or synthetically modified, have a variety of physical and chemical properties, i.e., ion exchange, adsorption, alkali metal reactivity, expansion tendency and thermal insulation, compressive strength, and durability, which has enabled their application in various sectors, including environmental protection, agricultural and industrial fields, pharmaceutics, and medicine. More specifically, zeolites can be used in wastewater and gas purification, soil remediation, building material production, catalysis, energy storage, and drug delivery.

The several application opportunities of zeolites have led to an in-depth study of their mineralogical, crystal structure, and chemical properties, as well as their kinetic and thermodynamic behavior in the processes in which they are involved, to better predict their achievements when applied in areas of technological interest.

Based on the long-time interest that zeolites have received from the scientific community, this Special Issue of Materials aims to highlight the present state of research on the characterization of zeolite materials, as well as of their applications in both traditional and innovative fields.

We are very pleased to invite you to submit a manuscript to the Special Issue, “Zeolitic Materials: Structure, Properties, and Applications II”.

Full research articles, short communications, and comprehensive review papers covering all aspects of research about zeolitic materials are welcome.

Prof. Dr. Bruno De Gennaro
Prof. Dr. Barbara Liguori
Prof. Dr. Domenico Caputo
Dr. Abner Colella
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • zeolite structure
  • ion exchange
  • adsorption
  • thermodynamic and kinetic studies
  • thermodynamic and kinetic modeling
  • environmental applications
  • building materials
  • energy storage
  • sustained drug release
  • catalysis

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Published Papers (1 paper)

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Research

15 pages, 5166 KiB  
Article
Changing Template/Al2O3 Ratio in Reaction Gel—An Effective Way to Regulate Nature of Intermediate Phases and Properties of SAPO-11 Molecular Sieves during Crystallization
by Marat R. Agliullin, Dmitry V. Serebrennikov and Boris I. Kutepov
Materials 2024, 17(6), 1359; https://doi.org/10.3390/ma17061359 - 16 Mar 2024
Viewed by 522
Abstract
A study has been conducted to investigate the formation of intermediate phases during the crystallization of SAPO-11 molecular sieves from reaction mixtures with a varying template (di-n-propylamine) DPA/Al2O3 ratio. It was found that changing the DPA/Al2O3 ratio [...] Read more.
A study has been conducted to investigate the formation of intermediate phases during the crystallization of SAPO-11 molecular sieves from reaction mixtures with a varying template (di-n-propylamine) DPA/Al2O3 ratio. It was found that changing the DPA/Al2O3 ratio from 1.0 to 1.8 in the initial reaction gels leads to the formation of different intermediate phases during crystallization into a SAPO-11 molecular sieve. It is shown that at the ratio template/Al2O3 = 1.0, an intermediate amorphous silicoaluminophosphate is formed; at 1.4, a mixture consisting of amorphous and layered phases forms; and at 1.8, a layered phase is present. A simple and innovative approach for controlling the morphology, size, and characteristics of primary crystals and the secondary porous structure in hierarchical SAPO-11 is proposed. The method is based on regulating the DPA/Al2O3 ratio in the reaction gel. The synthesized SAPO-11 molecular sieves with a hierarchical porous structure exhibited high selectivity in the hydroisomerization of n-hexadecane. Full article
(This article belongs to the Special Issue Zeolitic Materials: Structure, Properties, and Applications II)
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