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Minerals
Special Issues
Applications of Clay-Based Materials
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Applications of Clay-Based Materials

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Clays and Engineered Mineral Materials".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 690

Special Issue Editors

Dr. Pollyana Trigueiro

E-Mail Website
Guest Editor
Academic Unit of Cabo de Santo Agostinho, Federal Rural University of Pernambuco, Cabo de Santo Agostinho 54589-899, Brazil
Interests: engineering; nanomaterials; soil; mineralogy; drug delivery; agriculture; biology; medicine; biotechnology; pharmacology; adsorption; photocatalysis; pigments; plastics; cosmetics; solar cells
Prof. Dr. Ramón Raudel Peña Garcia

E-Mail Website1 Website2
Guest Editor
Academic Unit of Cabo de Santo Agostinho, Federal Rural University of Pernambuco, Cabo de Santo Agostinho 54589-899, Brazil
Interests: engineering; nanomaterials; soil; mineralogy; drug delivery; agriculture; biology; medicine; biotechnology; pharmacology; adsorption; photocatalysis; pigments; plastics; cosmetics; solar cells
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Clays and clay minerals have unique properties, such as high surface areas, ion exchange capacities, and adsorption capacities, making them highly desirable materials for various applications. Additionally, the structures of these minerals can be easily modified by adding organic or inorganic compounds, enhancing their interactions with guest molecules. This versatility makes them suitable for use in numerous fields, including environmental remediation, biology, chemistry, pharmacy, medicine, and biochemistry, and they are increasingly valuable in research. This Special Issue of Minerals welcomes papers, full-length articles, review articles, or short communications on "Applications of Clay-Based Materials". This Special Issue encompasses all areas of clay-based materials, including their applications in engineering, nanomaterials, soil, mineralogy, drug delivery, agriculture, biology, medicine, biotechnology, pharmacology, adsorption, photocatalysis, pigments, plastics, cosmetics, and solar cells. This Special Issue welcomes studies on recent developments in clay- and clay-mineral-based materials, and invites manuscripts covering various topics, such as, but not limited to, the following:

  1. New nanocomposites or hybrids derived from clays and clay minerals.
  2. Interactions of clays and clay minerals with polymers and biopolymers.
  3. Use of clays, clay minerals, and their derivatives in environmental remediation.
  4. Use of clays, clay minerals, and their derivatives in biological applications.
  5. Use of clays, clay minerals, and their derivatives in agricultural applications.
  6. Use of clays, clay minerals and their derivatives in biotechnological applications.
  7. Organic–clay/clay minerals composites.
  8. Inorganic–clay/clay minerals composites.

Dr. Pollyana Trigueiro
Prof. Dr. Ramón Raudel Peña Garcia
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. Minerals is an international peer-reviewed open access monthly 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 2400 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

  • clays
  • clay minerals
  • nanocomposites
  • hybrid materials
  • adsorption
  • photocatalysis
  • biological applications
  • drug delivery systems
  • agricultural applications

Published Papers (1 paper)

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Research

16 pages, 3953 KiB  
Article
Evaluation of the Durability of Concrete with the Use of Calcined Clays and Limestone in Salinas, Ecuador
by Juan Francisco Garces-Vargas, Yosvany Díaz-Cardenas and Jose Fernando Martirena Hernandez
Minerals 2024, 14(5), 460; https://doi.org/10.3390/min14050460 - 26 Apr 2024
Viewed by 510
Abstract
This study aims at the evaluation of different formulations of concrete made with calcined clays and limestone (LC3 cement) exposed to aggressive environments. The study includes the evaluation of fresh and hardened properties and a comprehensive evaluation of durability over 24 months. The [...] Read more.
This study aims at the evaluation of different formulations of concrete made with calcined clays and limestone (LC3 cement) exposed to aggressive environments. The study includes the evaluation of fresh and hardened properties and a comprehensive evaluation of durability over 24 months. The inclusion of calcined clays in cement increases the specific surface area of the cements, and thus the water demand. However, the high reactivity of calcined clays compared to any other pozzolan, and the synergy that occurs with limestones, enables the use of cements with very low clinker content that achieve strengths similar to those of Portland. Comparisons of LC3 formulations with Portland cement and with concrete containing silica fume prove the superiority of calcined clays in terms of strength and durability. The best results are obtained with LC3-50 cement with 50% clinker produced through co-grinding. Results of concrete made with a blend of 70% Portland cement with 30% LC2 (60% calcined clay, 35% limestone, 5% gypsum, separate ground) are also promising. All concretes made with LC3 show good durability in terms of the results of effective porosity, chloride permeability, and resistivity tests. Full article
(This article belongs to the Special Issue Applications of Clay-Based Materials)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: High performance of ciprofloxacin removal using heterostructured materials based on the combination of CeO2 and Palygorskite fibrous clay
Authors: Vanessa N. S. Campos, Josefa D. J. P. Santos, Rebecca J. P. Araújo, Pedro H. S. Lopes,  Marco A. S. García, Alex Rojas, Cícero W.B, Bezerra, Mayara M. Teixeira and Ana C. S. Alcântara
Abstract: Ciprofloxacin is a second-generation fluoroquinolone widely used in human and veterinary medicine, characterized by its environmental persistence and ability to promote bacterial resistance, resulting in genotoxic impacts and chronic toxicity in various forms of aquatic life. Given this reality, adsorption emerges as an effective technique for water treatment, capable of efficiently removing a variety of organic molecules, even in minimal concentrations. The development of hybrid materials, based on clay minerals with a fibrous nature, such as palygorskite, proves to be an attractive alternative in environmental remediation through adsorption processes. On the other hand, the surface of this silicate can be modified with oxides providing specific adsorption properties, improving the interaction with the substances to be adsorbed. In this work, the heterostructured hybrid material CeO2 and palygorskite fibrous clay was prepared and characterized by several physicochemical techniques (XRD, FTIR, BET, SEM), aiming to evaluate its efficiency in the adsorption of ciprofloxacin. In this study, we investigated the surface charge of the hybrid adsorbent by pHpzc determination to obtain a better comprehension of the possible electrostatic interactions between the adsorbent and the contaminant in the adsorptive process.  In addition, the influence of pH and ciprofloxacin concentration (6, 8, 10, 12, and 14 ppm) on the adsorptive process using the synthesized materials, as well as desorption and stability studies of the CeO2 /Palygorskite adsorbent were investigated. 
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