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Nanomaterials
Special Issues
Nanomaterials for Green and Sustainable World
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Special Issue "Nanomaterials for Green and Sustainable World"

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Environmental Nanoscience and Nanotechnology".

Deadline for manuscript submissions: 20 May 2024 | Viewed by 1793

Special Issue Editors

Prof. Dr. Sergei A. Kulinich

E-Mail Website
Guest Editor
Research Institute of Science and Technology, Tokai University, Hiratsuka 259-1292, Kanagawa, Japan
Interests: superhydrophobicity; hydrophobic and superhydrophobic surfaces; ice-phobicity; anti-icing; hydrophilicity; laser ablation in liquid; nanomaterials and their characterization; thin films and coatings; anticorrosive coatings on aluminum; conversion coatings on aluminum; chemiresistive gas sensors; semiconductor nanoparticles
Special Issues, Collections and Topics in MDPI journals
Dr. Valery A. Svetlichnyi

E-Mail Website
Guest Editor
Laboratory of Advanced Materials and Technology, Siberian Physical-Technical Institute, Tomsk State University, 634050 Tomsk, Russia
Interests: high-power laser excitation; pulsed laser ablation; laser spectroscopy; nonlinear optics of dyes and crystals; synthesis and characterization of nanomaterials; photocatalysis; biomedical applications of nanoparticles; surface and sensoric properties of nanostructures
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The present Special Issue aims to attract comprehensive studies that outline progress in the design, preparation, and application of a wide range of nanomaterials for a green and sustainable world.

The success of the implementation of the green and sustainable world approach is determined by breakthrough technologies based, among other factors, on new materials. Nanomaterials and nanotechnologies play one of the leading roles in such important areas of the sustainable future as ecological catalysis and the processing of renewable raw materials, green energy, biomedicine, and many others.

We invite authors involved in the development and application of nanomaterials and nanotechnologies for various areas of the green and sustainable world to send original research articles and review articles to our Special Issue. Potential topics include, but are not limited to:

  • Nanomaterials for ecological catalysis (for the decomposition of various pollutants in water and air);
  • Green approaches and technologies for obtaining functional nanomaterials;
  • Nanocatalysts for processing organic raw materials, CO2 conversion, etc.;
  • Nanomaterials for various technologies related to hydrogen energy;
  • Nanoparticles and nanocomposites for personalized medicine;
  • Nanomaterials for solar energy conversion;
  • Nanomaterials for sensors in the field of ecology and biomedicine.

Prof. Dr. Sergei A. Kulinich
Dr. Valery A. Svetlichnyi
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. Nanomaterials is an international peer-reviewed open access semimonthly 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 2900 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

  • nanomaterials for sustainable technologies
  • ecological catalysis
  • nanomaterials for personalized medicine
  • sustainability and recycling
  • green synthesis of nanomaterials
  • nanomaterials for hydrogen technology
  • nanomaterials for clean energy applications

Published Papers (3 papers)

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Research

17 pages, 3853 KiB  
Article
Highly Selective CO2 Hydrogenation to Methanol over Complex In/Co Catalysts: Effect of Polymer Frame
by
Svetlana A. Sorokina
,
Nina V. Kuchkina
,
Stepan P. Mikhailov
,
Alexander V. Mikhalchenko
,
Alexey V. Bykov
,
Valentin Yu. Doluda
,
Lyudmila M. Bronstein
and
Zinaida B. Shifrina
Nanomaterials 2023, 13(23), 2996; https://doi.org/10.3390/nano13232996 - 22 Nov 2023
Viewed by 345
Abstract
The growing demand for new energy sources governs the intensive research into CO2 hydrogenation to methanol, a valuable liquid fuel. Recently, indium-based catalysts have shown promise in this reaction, but they are plagued by shortcomings such as structural instability during the reaction [...] Read more.
The growing demand for new energy sources governs the intensive research into CO2 hydrogenation to methanol, a valuable liquid fuel. Recently, indium-based catalysts have shown promise in this reaction, but they are plagued by shortcomings such as structural instability during the reaction and low selectivity. Here, we report a new strategy of controlling the selectivity and stability of bimetallic magnetically recoverable indium-based catalysts deposited onto a solid support. This was accomplished by the introduction of a structural promoter: a branched pyridylphenylene polymer (PPP). The selectivity of methanol formation for this catalyst reached 98.5%, while in the absence of PPP, the catalysts produced a large amount of methane, and the selectivity was about 70.2%. The methanol production rate was higher by a factor of twelve compared to that of a commercial Cu-based catalyst. Along with tuning selectivity, PPP allowed the catalyst to maintain a high stability, enhancing the CO2 sorption capacity and the protection of In against sintering and over-reduction. A careful evaluation of the structure–activity relationships allowed us to balance the catalyst composition with a high level of structural control, providing synergy between the support, magnetic constituent, catalytic species, and the stabilizing polymer layer. We also uncovered the role of each component in the ultimate methanol activity and selectivity. Full article
(This article belongs to the Special Issue Nanomaterials for Green and Sustainable World)
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20 pages, 14759 KiB  
Article
Ni-Based SBA-15 Catalysts Modified with CeMnOx for CO2 Valorization via Dry Reforming of Methane: Effect of Composition on Modulating Activity and H2/CO Ratio
by
Maria V. Grabchenko
,
Natalia V. Dorofeeva
,
Valery A. Svetlichnyi
,
Yurii V. Larichev
,
Valeria La Parola
,
Leonarda Francesca Liotta
,
Sergei A. Kulinich
and
Olga V. Vodyankina
Nanomaterials 2023, 13(19), 2641; https://doi.org/10.3390/nano13192641 - 26 Sep 2023
Viewed by 483
Abstract
Dry reforming of methane with ratio CH4/CO2 = 1 is studied using supported Ni catalysts on SBA-15 modified by CeMnOx mixed oxides with different Ce/Mn ratios (0.25, 1 and 9). The obtained samples are characterized by wide-angle XRD, SAXS, [...] Read more.
Dry reforming of methane with ratio CH4/CO2 = 1 is studied using supported Ni catalysts on SBA-15 modified by CeMnOx mixed oxides with different Ce/Mn ratios (0.25, 1 and 9). The obtained samples are characterized by wide-angle XRD, SAXS, N2 sorption, TPR-H2, TEM, UV–vis and Raman spectroscopies. The SBA-15 modification with CeMnOx decreases the sizes of NiO nanoparticles and enhances the NiO–support interaction. When Ce/Mn = 9, the NiO forms small particles on the surface of large CeO2 particles and/or interacts with CeO2, forming mixed phases. The best catalytic performance (at 650 °C, CH4 and CO2 conversions are 51 and 69%, respectively) is achieved over the Ni/CeMnOx/SBA-15 (9:1) catalyst. The peculiar CeMnOx composition (Ce/Mn = 9) also improves the catalyst stability: In a 24 h stability test, the CH4 conversion decreases by 18 rel.% as compared to a 30 rel.% decrease for unmodified catalyst. The enhanced catalytic stability of Ni/CeMnOx/SBA-15 (9:1) is attributed to the high concentration of reactive peroxo (O−) and superoxo (O2−) species that significantly lower the amount of coke in comparison with Ni-SBA-15 unmodified catalyst (weight loss of 2.7% vs. 42.2%). Ni-SBA-15 modified with equimolar Ce/Mn ratio or Mn excess is less performing. Ni/CeMnOx/SBA-15 (1:4) with the highest content of manganese shows the minimum conversions of reagents in the entire temperature range (X(CO2) = 4–36%, X(CH4) = 8–58%). This finding is possibly attributed to the presence of manganese oxide, which decorates the Ni particles due to its redistribution at the preparation stage. Full article
(This article belongs to the Special Issue Nanomaterials for Green and Sustainable World)
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26 pages, 23610 KiB  
Article
Innovative Low-Cost Composite Nanoadsorbents Based on Eggshell Waste for Nickel Removal from Aqueous Media
by
Adina-Elena Segneanu
,
Roxana Trusca
,
Claudiu Cepan
,
Maria Mihailescu
,
Cornelia Muntean
,
Dumitru Daniel Herea
,
Ioan Grozescu
and
Athanasios Salifoglou
Nanomaterials 2023, 13(18), 2572; https://doi.org/10.3390/nano13182572 - 16 Sep 2023
Viewed by 696
Abstract
In a contemporary sustainable economy, innovation is a prerequisite to recycling waste into new efficient materials designed to minimize pollution and conserve non-renewable natural resources. Using an innovative approach to remediating metal-polluted water, in this study, eggshell waste was used to prepare two [...] Read more.
In a contemporary sustainable economy, innovation is a prerequisite to recycling waste into new efficient materials designed to minimize pollution and conserve non-renewable natural resources. Using an innovative approach to remediating metal-polluted water, in this study, eggshell waste was used to prepare two new low-cost nanoadsorbents for the retrieval of nickel from aqueous solutions. Scanning electron microscopy (SEM) results show that in the first eggshell–zeolite (EZ) adsorbent, the zeolite nanoparticles were loaded in the eggshell pores. The preparation for the second (iron(III) oxide-hydroxide)–eggshell–zeolite (FEZ) nanoadsorbent led to double functionalization of the eggshell base with the zeolite nanoparticles, upon simultaneous loading of the pores of the eggshell and zeolite surface with FeOOH particles. Structural modification of the eggshell led to a significant increase in the specific surface, as confirmed using BET analysis. These features enabled the composite EZ and FEZ to remove nickel from aqueous solutions with high performance and adsorption capacities of 321.1 mg/g and 287.9 mg/g, respectively. The results indicate that nickel adsorption on EZ and FEZ is a multimolecular layer, spontaneous, and endothermic process. Concomitantly, the desorption results reflect the high reusability of these two nanomaterials, collectively suggesting the use of waste in the design of new, low-cost, and highly efficient composite nanoadsorbents for environmental bioremediation. Full article
(This article belongs to the Special Issue Nanomaterials for Green and Sustainable World)
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