Organo-Clays: Preparation, Characterization and Applications

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 September 2025 | Viewed by 1341

Special Issue Editors


E-Mail Website
Guest Editor
Departamento de Engenharia Metalúrgica e de Materiais da Escola Politécnica, Universidade de São Paulo, Sao Paulo 05508-030, Brazil
Interests: clay science and technology
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Mechanical Engineering, State University of Amazonas, Manaus 69850-020, Brazil
Interests: clay science and technology; composite materials

E-Mail Website
Guest Editor
Departamento de Engenharia de Materiais, Universidade do Estado do Amazonas (UEA), Manaus 69850-020, Brazil
Interests: polymer nanocomposites and metals

Special Issue Information

Dear Colleagues,

An enormous number of organo-clay complexes have been and are being studied. This is because clays are made up of very small elementary particles which have an anisometric morphology, chemically interesting surfaces and generally have the ability to exchange cations or anions, allowing for the intercalation or incorporation of organic substances. The most studied types of clays have been kaolin, halloysite, other tubular clays, bentonite and anionic clays like lamellar double hydroxides. This Special Issue will focus on the preparation, characterization and application of organo-clays that include both the consolidated applications of organo-clays, such as organophilic clays in the drilling of oil wells, in the paint industry and in cosmetics and toiletries, as well as in more modern applications such as the incorporation of organic substances in water treatment, controlled drug release, fertilizers, herbicides, etc., nanofillers in polymers’ nanocomposites, and also the emerging study of organo-synthetic clays.

Prof. Dr. Francisco Rolando Valenzuela-Díaz
Dr. Antonio Kieling
Dr. Jose Costa de Macedo Neto
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

  • organo-clays
  • the preparation of organo-clays
  • the characterization of organo-clays
  • the uses of organo-clays
  • organo-bentonite
  • organo-kaolin

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

16 pages, 4165 KiB  
Article
Sorption Properties of Bentonite-Based Organoclays with Amphoteric and Nonionic Surfactants in Relation to Polycyclic Aromatic Hydrocarbons
by Tamara Dudnikova, Marina Burachevskaya, Tatyana Minkina, Saglara Mandzhieva, Inna Zamulina, Leonid Perelomov and Maria Gertsen
Minerals 2024, 14(11), 1132; https://doi.org/10.3390/min14111132 - 8 Nov 2024
Cited by 1 | Viewed by 945
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are a major scientific challenge due to their profound impact on public and environmental health. Therefore, studying ways to detoxify PAHs is important. In this research, the adsorption ability of bentonite modified with five surfactants, including amphoteric (cocoamphodiacetate disodium [...] Read more.
Polycyclic aromatic hydrocarbons (PAHs) are a major scientific challenge due to their profound impact on public and environmental health. Therefore, studying ways to detoxify PAHs is important. In this research, the adsorption ability of bentonite modified with five surfactants, including amphoteric (cocoamphodiacetate disodium and sodium cocoiminodipropionate) and nonionic (lauramine oxide, cocamide diethanolamine, and alkylpolyglucoside) substances for the adsorption of high-molecular benzo(a)pyrene and low-molecular naphthalene from the PAH group was studied. The bentonite and bentonite-based organoclays were characterized using X-ray diffraction and Fourier transform infrared spectroscopy. The results showed that the maximum adsorption of benzo(a)pyrene by organoclays increased compared with the initial mineral. The adsorption of benzo(a)pyrene is higher than that of naphthalene. The adsorption process of benzo(a)pyrene by bentonite and organoclays is predominantly monolayer, as it is better described by the Langmuir model (R2 0.77–0.98), while naphthalene is predominantly multilayer, described by the Freundlich model (R2 0.86–0.96). According to the effectiveness of sorption capacities of organoclays—including the degree of sorption, Langmuir and Freundlich constants, the value of maximum adsorption, Gibbs free energy, and the index of favorability of the adsorption process—the most effective modification was found. For the adsorption of benzo(a)pyrene the best was cocoamphodiacetate disodium, and for naphthalene it was sodium cocoiminodipropionate. Full article
(This article belongs to the Special Issue Organo-Clays: Preparation, Characterization and Applications)
Show Figures

Figure 1

Back to TopTop