Special Issue "Silica and Silicon Based Nanostructures"

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: 31 December 2020.

Special Issue Editor

Dr. Céline Ternon
Website
Guest Editor
Univ Grenoble Alpes, CNRS, Grenoble INP, LMGP,Inst Engn, F-38000 Grenoble, France
Interests: Si nanowires; ZnO nanowires; semiconducting nanowire networks; nanonets; functional devices; biosensing; gas sensing; transistors; flexible electronics; material design; physical modeling

Special Issue Information

Dear Colleagues,

Studies on silicon and silica-based nanostructures appeared in the early 1990s. Their number continued to grow until about 2014. Since then, scientific production has stabilized (silica-based nanostructures) or tended to decrease (silicon-based nanostructures). An extensive literature review of silicon-based nanostructures clearly shows that the major areas affected by the decline in publications are applied physics, crystallography, and engineering electrical electronic, whereas numerous applied fields are the subject of increased interest.

This is a sign that the structures and technologies have been mastered and the most obvious applications (electronic devices) have been explored, and research teams are now exploring new fields and applications for these nanostructures. The purpose of this Special Issue is to bring together the state-of-art in this field and to allow the emergence of novel ideas and concepts for silicon- and silica-based nanostructures. Indeed, Si and SiO2-based nanostructures open new perspectives for many interdisciplinary applications in the fields of biomarkers, energy recovery, photovoltaics, sensors, manipulators, actuators, optoelectronics, quantum devices, telecommunications, environmental science, mechanics, biomaterials, etc.

Since the production of functional materials requires a good understanding of physical and chemical properties, fundamental studies, applied, theoretical, or computational, specifically related to new applications are also expected.

Full papers, communications, and reviews are all welcome. Topics include, but are not limited, to the following:

  • Si- and SiO2-based nanostructures (single structure, network, nanonet, large assembly, composite, etc.): theory, synthesis, fabrication, properties
  • Doping, surface effects, and surface functionalization
  • Applications of Si- and SiO2-based nanostructures, for example, gas- and bio-sensing, electronics, photonics, energy harvesting, photovoltaic, energy storage, catalysis, biomedical, etc.
  • Developments in the characterization of Si- and SiO2-based nanostructures: electrical and chemical mapping at the nanoscale, optical measurement, TEM-related methods, etc.
  • Theory and computational modeling of Si- and SiO2-based nanostructures
  • Other studies of nanoscience and nanotechnology associated with Si- and SiO2-based nanostructures

Dr. Céline Ternon
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 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. Nanomaterials 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 2000 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.

Published Papers (2 papers)

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Research

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Open AccessArticle
Soil Application of Nano Silica on Maize Yield and Its Insecticidal Activity Against Some Stored Insects After the Post-Harvest
Nanomaterials 2020, 10(4), 739; https://doi.org/10.3390/nano10040739 - 12 Apr 2020
Abstract
Maize is considered one of the most imperative cereal crops worldwide. In this work, high throughput silica nanoparticles (SiO2-NPs) were prepared via the sol–gel technique. SiO2-NPs were attained in a powder form followed by full analysis using the advanced [...] Read more.
Maize is considered one of the most imperative cereal crops worldwide. In this work, high throughput silica nanoparticles (SiO2-NPs) were prepared via the sol–gel technique. SiO2-NPs were attained in a powder form followed by full analysis using the advanced tools (UV-vis, HR-TEM, SEM, XRD and zeta potential). To this end, SiO2-NPs were applied as both nanofertilizer and pesticide against four common pests that infect the stored maize and cause severe damage to crops. As for nanofertilizers, the response of maize hybrid to mineral NPK, “Nitrogen (N), Phosphorus (P), and Potassium (K)” (0% = untreated, 50% of recommended dose and 100%), with different combinations of SiO2-NPs; (0, 2.5, 5, 10 g/kg soil) was evaluated. Afterward, post-harvest, grains were stored and fumigated with different concentrations of SiO2-NPs (0.0031, 0.0063. 0.25, 0.5, 1.0, 2.0, 2.5, 5, 10 g/kg) in order to identify LC50 and mortality % of four common insects, namely Sitophilus oryzae, Rhizopertha dominica, Tribolium castaneum, and Orizaephilus surinamenisis. The results revealed that, using the recommended dose of 100%, mineral NPK showed the greatest mean values of plant height, chlorophyll content, yield, its components, and protein (%). By feeding the soil with SiO2-NPs up to 10 g/kg, the best growth and yield enhancement of maize crop is noticed. Mineral NPK interacted with SiO2-NPs, whereas the application of mineral NPK at the rate of 50% with 10 g/kg SiO2-NPs, increased the highest mean values of agronomic characters. Therefore, SiO2-NPs can be applied as a growth promoter, and in the meantime, as strong unconventional pesticides for crops during storage, with a very small and safe dose. Full article
(This article belongs to the Special Issue Silica and Silicon Based Nanostructures)
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Review

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Open AccessReview
Recent Advances in Functionalized Mesoporous Silica Frameworks for Efficient Desulfurization of Fuels
Nanomaterials 2020, 10(6), 1116; https://doi.org/10.3390/nano10061116 (registering DOI) - 05 Jun 2020
Abstract
Considerable health and climate benefits arising from the use of low-sulfur fuels has propelled the research on desulfurization of fossil fuels. Ideal fuels are urgently needed and are expected to be ultra-low in sulfur (10–15 ppm), with no greater than 50 ppm sulfur [...] Read more.
Considerable health and climate benefits arising from the use of low-sulfur fuels has propelled the research on desulfurization of fossil fuels. Ideal fuels are urgently needed and are expected to be ultra-low in sulfur (10–15 ppm), with no greater than 50 ppm sulfur content. Although several sulfur removal techniques are available in refineries and petrochemical units, their high operational costs, complex operational needs, low efficiencies, and higher environmental risks render them unviable and challenging to implement. In recent years, mesoporous silica-based materials have emerged as promising desulfurizing agents, owing to their high porosity, high surface area, and easier functionalization compared to conventional materials. In this review, we report on recent progress in the synthesis and chemistry of new functionalized mesoporous silica materials aiming to lower the sulfur content of fuels. Additionally, we discuss the role of special active sites in these sorbent materials and investigate the formulations capable of encapsulating and trapping the sulfur-based molecules, which are challenging to remove due to their complexity, for example the species present in JP-8 jet fuels. Full article
(This article belongs to the Special Issue Silica and Silicon Based Nanostructures)
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