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Symmetry
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Symmetry in Nanomaterials: Synthesis and Applications
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Symmetry in Nanomaterials: Synthesis and Applications

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Chemistry: Symmetry/Asymmetry".

Deadline for manuscript submissions: closed (15 February 2023) | Viewed by 1877

Special Issue Editor

Dr. Qingliang Feng

E-Mail Website
Guest Editor
School of Chemistry and Chemical Engineering, Northwestern Polytechnical Universtiy, Xi'an, China
Interests: synthesis and characterizations of two-dimensional materials; bandgap engineering; photodetection of two-dimensional materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Symmetry in crystalline structure for functional materials is very important for tuning physical and chemical properties such as the surface energy, binding energy, band structure, charge mobility and so on. Nanomaterials are widely used in a variety of manufacturing processes, nanodevices, sensors, catalysts and healthcare applications, including use in paints, filters, insulation and lubricant additives. Therefore, it is necessary to investigate the interconnection of crystal symmetry and with nanomaterials function, propelling the further application of nanomaterials in differentiated applications.

The aim of the present Special Issue of Symmetry titled "Symmetry in nanomaterials: synthesis and applications" is to collect and present contributions on the synthesis and application of nanomaterials, including two-dimensional materials, nanocatalysts, and sensors, emphasizing the phenomena that lie at the crossroads between the concept of symmetry and two-dimensional materials, as well as other nanomaterials.

We are soliciting contributions (research and review articles) covering a broad range of topics on symmetry in two-dimensional materials—catalysis, sensors, healthcare and engineering are particularly of interest. The specific topics may include (though are not limited to) the following:

  • Symmetries in two-dimensional structures;
  • Synthesis of two-dimensional materials;
  • Application of two-dimensional materials;
  • Symmetries in nanocatalysts;
  • Symmetries in nanomaterials for sensors;
  • Symmetries in nanomaterials for healthcare;
  • Design of symmetrical materials.

Dr. Qingliang Feng
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. Symmetry 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

  • two-dimensional materials
  • chemical vapor deposition
  • structural characterization
  • density-functional theory
  • nanoelectronics
  • optoelectronics
  • sensors
  • catalyst
  • healthcare

Published Papers (2 papers)

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Research

11 pages, 6870 KiB  
Article
Chiral Binaphthol Fluorescent Materials Based on a Novel Click Reaction
by Fuchong Li, Wei Liu, Li Tian, Wei Cao, Xu Li, Junhong Guo, Jinfeng Cui and Baoping Yang
Symmetry 2023, 15(3), 629; https://doi.org/10.3390/sym15030629 - 2 Mar 2023
Viewed by 1138
Abstract
Because of easy functionalization, low cost, and large-scale fabrication, pure organic fluorescent polymers are widely applied in light-emitting display, bio-fluorescence-enhanced imaging, explosive detection, and other fields. Among these applications, due to their unique optical rotation characteristics, chiral fluorescent polymer materials are part of [...] Read more.
Because of easy functionalization, low cost, and large-scale fabrication, pure organic fluorescent polymers are widely applied in light-emitting display, bio-fluorescence-enhanced imaging, explosive detection, and other fields. Among these applications, due to their unique optical rotation characteristics, chiral fluorescent polymer materials are part of fluorescent polymers which could be used in chiral molecular detection and separation, biological target detection, etc. In this work, we designed and synthesized the first chiral organic fluorescent polysulfate materials through sulfur fluoride exchange polymerization (new click chemistry) by asymmetric binaphthol molecular. The chiral fluorescent polysulfate were synthesized by R/S [1,1′-binaphthalene]-2,2′-diol(Binol.), propane-2,2-diylbis(4,1-phenylene) bis(sulfurofluoridate) (FO2S–BA–SO2F) and 4,4′-(propane-2,2-diyl)diphenol(BA.) through step-by-step polymerization reaction under alkali present. It was found that the local crystallization of pure bisphenol A polysulfate was broken by the asymmetric axial chiral BINOL molecule inserted in it and let the polymer into the amorphous state. Fluorescent chiral molecules are uniformly dispersed in the polymer; the 120 µm film prepared by the film scraper was transparent and had good luminescence characteristics under ultraviolet light. After fluorescence detection, the excitation wavelength is 450 nm, and the emission wavelength is 480 and 517 nm. Full article
(This article belongs to the Special Issue Symmetry in Nanomaterials: Synthesis and Applications)
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10 pages, 5587 KiB  
Article
Fluorescent Composites Prepared of Tb3+ and Sulfonated Sulfate Polymer Constructed through Post-Sulfonation Sulfur-Fluorine Exchange Polymerization by Symmetric Molecular
by Fuchong Li, Wei Liu, Yang Gao, Li Tian, Junhong Guo, Jinfeng Cui and Baoping Yang
Symmetry 2022, 14(11), 2293; https://doi.org/10.3390/sym14112293 - 2 Nov 2022
Viewed by 1175
Abstract
Organic fluorescent materials are widely applied in different important fields, such as light-emitting display, explosive detection, molecular imprinting, and so on, because of their low cost, easy functionalization, and large-scale fabrication. In this work, we designed and synthesized a new kind of organic [...] Read more.
Organic fluorescent materials are widely applied in different important fields, such as light-emitting display, explosive detection, molecular imprinting, and so on, because of their low cost, easy functionalization, and large-scale fabrication. In this work, we designed and synthesized a new kind of organic fluorescent polysulfate composite material through post-sulfonation sulfur-fluorine exchange polymerization (a new kind of click chemistry) by symmetric molecular. Sulfur-fluorine exchange polymerization: symmetrical structure SO2F−R1−SO2F molecular reacted with symmetrical OH−R2−OH molecular through nucleophilic reaction in the presence of inorganic base. The polysulfate material was further modified by ClSO3H to get PSE−SO3H materials. Tb3+ was highly dispersed on PSE−SO3H to afford organic-inorganic hybrid fluorescent materials through the conventional coordination chemistry method. The emission wavelength of the organic-inorganic hybrid fluorescent polymer PSE−SO3H−Tb3+ was between 475 and 685 nm, the quantum yield reached 1.18%, and fluorescence lifetime lasted for 730.168 us, with the pure green light emission and long light-emitting lifetime. The fluorescence film was prepared through phase transformation method by the fluorescent polymer material PSE−SO3H−Tb3+. The film has the strong stability property in different pH conditions (pH 1~13). Thus, this kind of organic fluorescent polysulfate composite material may have certain prospects application in terms of detection and luminescence in extreme chemical environments in the future. Full article
(This article belongs to the Special Issue Symmetry in Nanomaterials: Synthesis and Applications)
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