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Special Issue "Advanced Applications of Layered Double Hydroxides"
A special issue of ChemEngineering (ISSN 2305-7084).
Deadline for manuscript submissions: 31 October 2019.
GIR-QUESCAT, Department of Inorganic Chemistry, University of Salamanca, Salamanca, Spain
Interests: : heterogeneous catalysts; nanocomposites (e.g., flame retardants); soil water remediation; controlled release of drugs; adsorption of organics and of inorganics; mixed oxide precursos for ceramics
Layered double hydroxides have received outstanding attention from scientists and technologists in the last few decades because of their easy preparation, low price and versatile applications. These extend to a broad range, including heterogeneous catalysts, catalyst precursors, catalyst supports, anion scavenging, water remediation, controlled delivery of drugs and other chemicals, adsorption of organic and inorganic anions, nanocomposites (both as stabilizers or for flame retardant purposes as well), inorganic pigments precursors, as electrodes in electrochemistry, photochemical reactions in the interlayer, as antacids in medicine, stabilization of biomolecules, etc. Updating of these applications will be undoubtedly of interest for all scientists involved in the above-mentioned fields, and new applications, probably unforeseen in the last few years, will probably turn up.
Given your reputed experience in the study of layered double hydroxides and the outstanding impact of your previous publications in this field, we would very much appreciate your contribution in this field in this Special Issue of ChemEngineering. Although it is mainly focused on advanced applications, papers reviewing and updating already known applications, as well as novel synthetic routes, are also welcome.
Prof. Dr. Vicente Rives
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 papers will be 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. ChemEngineering is an international peer-reviewed open access quarterly 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 1000 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.
- layered double hydroxide
- mixed oxides
- basic catalysis
- catalyst supports
- anion scavenging
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.
1. Title: Heavy metal removal by alginate beads loaded with Ca Al layered double
Abstract: Ca-Al layered double hydroxides (Ca-Al-LDHs) present large heavy metal removal capacity, but their application restricted by its high reactivity and the difficult separation from the remediated media. Here
we propose the inclusion of these solids in calcium alginate (CaAlg) beads to improve their performance. Ca-Al LDHs prepared by coprecipitation at variable pH were included in alginate beads with a 0.05 Ca-Al LDH/CaAlg ratio were prepared. The acid base reactivity of the obtained beads was compared to that of pure CaAlg beads and the impact on the removal od Cu^2+ , used as a prove heavy metal ion, was assessed.
Author: Ricardo Rojas y Delgado
2. Title: Morphosyntheses of layered double hydroxides
Abstract: Due to the wide range of application, the preparation of layered double hydroxides (LDHs) with varied composition and particle size have been reported extensively. The synthetic method is based on the precipitation from solution. While the dissolution and re-precipitation under hydrothermal condition is also regarded as a pathway to obtain LDHs. In addition, solid-state reactions (mechanochemical reactions) have also been applied to prepare LDHs. Applicable LDHs and their intercalates are limited for each synthetic method. The available particle size and size distribution are dependent on the the synthetic means as well as the detailed conditions.
Post-synthetic hybridization of LDHs has also been done by means of the reactions in solution (at the solid-liquid interfaces) and in the solid-state. LDHs containing a wide variety of guest anions have been obtained so far.
In the present review, the preparation of LDHs by several different synthetic methods will be summarized to discuss the possible correlation between the synthetic methods and the materials characteristics.
Author: Makoto OGAWA
3. Title: Layered double hydroxides for the catalytic isomerization of linoleic acid to conjugated linoleic acids (CLAs)
Abstract: The term conjugated linoleic acid (CLA) is used to designate the whole of dienoic conjugated isomers in position and geometry of linoleic acid (LA, cis-9, cis-12-octadecadienoic acid). Linoleic acid has double bonds located on carbons 9 and 12, both in the cis configuration whereas CLA has either the cis or trans configuration or both located along the carbon chain. Over years, some studies showed that a small number of unsaturated fatty acids present interesting biomedical and nutritional properties, thus demonstrating their potential application as functional foods. Specifically, the cis-9, trans-11-CLA isomer (c9, t11-CLA) has been proposed as a potential anti-tumour agent while the trans-10, cis-12-CLA isomer (t10, c12-CLA) affects the regulation of lipids (cholesterol) and body mass.
The aim of this work is to study the role of catalyst basicity on the isomerization of linoleic acid by testing several layered double hydroxides synthesized with different cations and different M2+/M3+ ratios.
Author: María Pilar Salagre Carnero