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Nanocomposites, Hybrids and Nanocrystalline Materials
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Nanocomposites, Hybrids and Nanocrystalline Materials

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Nanoscience".

Deadline for manuscript submissions: closed (30 December 2023) | Viewed by 3425

Special Issue Editor

Dr. Airat Gazinurovich Kiiamov

E-Mail Website
Guest Editor
Institute of Physics, Kazan Federal University, Kazan 420008, Russia
Interests: ab initio; DFT; spin resonance; XRD; synchrotron radiation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Condensed matter physics focusing on topics such as nanocomposites, hybrids, and nanocrystalline materials is an essentially important research area solving a broad range of physical problems, both fundamental and applied.

The utilization of such a nanomaterial plays a significant role in enhancing the physiochemical stability of products, delivering active ingredients, and improving their final application. Nanomaterials are attracting the attention of scientists due to their extraordinary properties, which can be applied in different areas.

Nanocomposites, hybrids, nanocrystalline materials, and carbon nanocomposites can be designed by choosing suitable materials for a specific application, such as energy, medical and environmental applications, and smart materials.

The present Special Issue is devised as a collection of articles reporting both basic and applied research on condensed matter physics’ applications related to smart materials, nanocomposites, hybrids, and nanocrystalline materials.

The topics of interest may include computational, theoretical, or experimental studies of materials such as material structures, characterization, applications, and properties, including electronic, magnetic, transport, mechanical, and thermal.

Dr. Airat Gazinurovich Kiiamov
Guest Editor

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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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

  • Ab initio
  • DFT
  • synchrotron radiation
  • nanocomposites
  • hybrid materials
  • nanocrystalline materials
  • graphene
  • graphene oxide
  • carbon nanotubes
  • nanocarbon
  • energy applications
  • smart nanocomposites
  • nanomagnets

Published Papers (3 papers)

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Research

12 pages, 1075 KiB  
Article
Synthesis and Antimicrobial Analysis of High Surface Area Strontium-Substituted Calcium Phosphate Nanostructures for Bone Regeneration
by Aneela Anwar, Qudsia Kanwal, Ayesha Sadiqa, Tabassam Razaq, Iqra Haider Khan, Arshad Javaid, Safia Khan, ElSayed Tag-Eldin and Mohamed Ouladsmane
Int. J. Mol. Sci. 2023, 24(19), 14527; https://doi.org/10.3390/ijms241914527 - 25 Sep 2023
Viewed by 953
Abstract
Continuous microwave-assisted flow synthesis has been used as a simple, more efficient, and low-cost route to fabricate a range of nanosized (<100 nm) strontium-substituted calcium phosphates. In this study, fine nanopowder was synthesized via a continuous flow synthesis with microwave assistance from the [...] Read more.
Continuous microwave-assisted flow synthesis has been used as a simple, more efficient, and low-cost route to fabricate a range of nanosized (<100 nm) strontium-substituted calcium phosphates. In this study, fine nanopowder was synthesized via a continuous flow synthesis with microwave assistance from the solutions of calcium nitrate tetrahydrate (with strontium nitrate as Sr2+ ion source) and diammonium hydrogen phosphate at pH 10 with a time duration of 5 min. The morphological characterization of the obtained powder has been carried out by employing techniques such as transmission electron microscopy, X-ray diffraction, and Brunauer–Emmett–Teller surface area analysis. The chemical structural analysis to evaluate the surface properties was made by using X-ray photoelectron spectroscopy. Zeta potential analysis was performed to evaluate the colloidal stability of the particles. Antimicrobial studies were performed for all the compositions using four bacterial strains and an opportunistic human fungal pathogen Macrophomina phaseolina. It was found that the nanoproduct with high strontium content (15 wt% of strontium) showed pronounced antibacterial potential against M. luteus while it completely arrested the fungal growth after 48 h by all of its concentrations. Thus the synthesis strategy described herein facilitated the rapid production of nanosized Sr-substituted CaPs with excellent biological performance suitable for a bone replacement application. Full article
(This article belongs to the Special Issue Nanocomposites, Hybrids and Nanocrystalline Materials)
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14 pages, 2757 KiB  
Article
Molecular Dynamics Modeling for the Determination of Elastic Moduli of Polymer–Single-Walled Carbon Nanotube Composites
by Aigul Shamsieva, Alexander Evseev, Irina Piyanzina, Oleg Nedopekin and Dmitrii Tayurskii
Int. J. Mol. Sci. 2023, 24(14), 11807; https://doi.org/10.3390/ijms241411807 - 22 Jul 2023
Cited by 1 | Viewed by 1045
Abstract
The use of carbon nanotubes to improve the mechanical properties of polymers is one of the promising directions in materials science. The addition of single-walled carbon nanotubes (SWCNTs) to a polymer results in significant improvements in its mechanical, electrical, optical, and structural properties. [...] Read more.
The use of carbon nanotubes to improve the mechanical properties of polymers is one of the promising directions in materials science. The addition of single-walled carbon nanotubes (SWCNTs) to a polymer results in significant improvements in its mechanical, electrical, optical, and structural properties. However, the addition of SWCNTs does not always improve the polymer properties. Also, when a certain content of SWCNTs is exceeded, the mechanical properties of the nanocomposite become worse. This article reports the results of computer simulations for predicting the mechanical properties of polymer/single-walled carbon nanotube nanocomposites. The efficiency of reinforcing polymer composites is considered depending on the concentration of carbon nanotubes in the polymer matrix, their size, and structure. The elastic moduli of the nanocomposites are predicted using computer simulations for unit cell tension (0.1%). General trends in the mechanical properties of composites with polypropylene (PP), poly(ethyl methacrylate) (PEMA), polystyrene (PS) matrices, and SWCNTs are shown. Full article
(This article belongs to the Special Issue Nanocomposites, Hybrids and Nanocrystalline Materials)
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16 pages, 12193 KiB  
Article
Fusion-Assisted Hydrothermal Synthesis of Technogenic-Waste-Derived Zeolites and Nanocomposites: Synthesis, Characterization, and Mercury (II) Adsorption
by Madina Suleimenova, Saule Zharylkan, Meruyert Mekenova, Alibek Mutushev, Seytkhan Azat, Aidana Tolepova, Alzhan Baimenov, Aliya Satayeva and Zhandos Tauanov
Int. J. Mol. Sci. 2023, 24(14), 11317; https://doi.org/10.3390/ijms241411317 - 11 Jul 2023
Cited by 1 | Viewed by 940
Abstract
This study presents the synthesis of zeolites derived from coal fly ash (CFA) using the fusion-assisted alkaline hydrothermal method. The zeolites were synthesized by combining CFA and NaOH at a molar ratio of 1:1.2 under fusion temperatures of 500, 600, and 700 °C. [...] Read more.
This study presents the synthesis of zeolites derived from coal fly ash (CFA) using the fusion-assisted alkaline hydrothermal method. The zeolites were synthesized by combining CFA and NaOH at a molar ratio of 1:1.2 under fusion temperatures of 500, 600, and 700 °C. Subsequently, the obtained zeolites were subjected to further modifications through the incorporation of magnetic (Fe3O4) and silver (Ag0) nanoparticles (NPs). The Fe3O4 NPs were introduced through co-precipitation of Fe(NO3)2 and FeCl3 at a molar ratio of 1:1, followed by thermal curing at 120 °C. On the other hand, the Ag0 NPs were incorporated via ion exchange of Na+ with Ag+ and subsequent reduction using NaBH4. The synthesized porous materials exhibited the formation of zeolites, specifically analcime and sodalite, as confirmed by X-ray diffraction (XRD) analysis. Additionally, the presence of Fe3O4 and Ag0 NPs was also confirmed by XRD analysis. The elemental composition analysis of the synthesized nanocomposites further validated the successful formation of Fe3O4 and Ag0 NPs. Nitrogen porosimetric analysis revealed the formation of a microporous structure, with the BET surface area of the zeolites and nanocomposites ranging from 48.6 to 128.7 m2/g and pore sizes ranging from 0.6 to 4.8 nm. The porosimetric characteristics of the zeolites exhibited noticeable changes after the modification process, which can be attributed to the impregnation of Fe3O4 and Ag0 NPs. The findings of this research demonstrate the effectiveness of the fusion-assisted method in producing synthetic zeolites and nanocomposites derived from CFA. The resulting composites were evaluated for their potential application in the removal of mercury ions from aqueous solutions. Among the samples tested, the composite containing Ag0 NPs exhibited the highest adsorption capacity, reaching 107.4 mg of Hg2+ per gram of composite. The composites modified with Fe3O4 NPs and Ag/Fe3O4 nanocomposites displayed adsorption capacities of 68.4 mg/g and 71.4 mg/g, respectively. Full article
(This article belongs to the Special Issue Nanocomposites, Hybrids and Nanocrystalline Materials)
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