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Molecular Scale Design, Synthesis, and Application of Macroporous, Mesoporous, and Microporous Materials

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

Deadline for manuscript submissions: 31 July 2024 | Viewed by 861

Special Issue Editor


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Instituto de Cerámica y Vidrio, Consejo Superior de Investigaciones Científicas, C/Kelsen 5, 28049 Madrid, Spain
Interests: functional ceramic materials; synthesis and characterization, applications: photoluminescence; photocatalysis; energy production and storage
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Special Issue Information

Dear Colleagues,

Macro-, meso- and microporous membranes are widely used for separation and catalysis in the fields of food processing, biotechnology, pharmaceuticals, petrochemicals, and many more besides. In addition, they are also employed in production and energy storage. They can be tailored to provide different types of architecture, which requires the use of novel designs and specific synthesis methods. The optimal membrane microstructure consists of desirable pore sizes, a sharp pore size distribution, good pore interconnectivity and porosity, large surface areas, and an absence of defects. Furthermore, the design of three-dimensional materials with multiscale pore architecture represents an ongoing challenge. Chemistry provides the knowledge required to design and create new materials and the study of physics provides the necessary knowledge to understand their characteristics and properties for specific applications.

This Special Issue welcomes original research papers and reviews on the design, preparation and application of macro-, meso- and microporous materials. This Special Issue focuses on researching these porous materials at the molecular level, with a specific focus on mechanistic studies.

Dr. María Teresa Colomer
Guest Editor

Manuscript Submission Information

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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

  • macro-, meso- and microporous
  • porous materials
  • molecular design
  • adsorption
  • porous organic frameworks

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Published Papers (1 paper)

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Research

11 pages, 2387 KiB  
Article
The Facile Synthesis and Application of Mesoporous Silica Nanoparticles with a Vinyl Functional Group for Plastic Recycling
by Jong-tak Lee, Misun Kang and Jae Young Bae
Int. J. Mol. Sci. 2024, 25(4), 2295; https://doi.org/10.3390/ijms25042295 - 15 Feb 2024
Viewed by 591
Abstract
Due to growing concerns about environmental pollution from plastic waste, plastic recycling research is gaining momentum. Traditional methods, such as incorporating inorganic particles, increasing cross-linking density with peroxides, and blending with silicone monomers, often improve mechanical properties but reduce flexibility for specific performance [...] Read more.
Due to growing concerns about environmental pollution from plastic waste, plastic recycling research is gaining momentum. Traditional methods, such as incorporating inorganic particles, increasing cross-linking density with peroxides, and blending with silicone monomers, often improve mechanical properties but reduce flexibility for specific performance requirements. This study focuses on synthesizing silica nanoparticles with vinyl functional groups and evaluating their mechanical performance when used in recycled plastics. Silica precursors, namely sodium silicate and vinyltrimethoxysilane (VTMS), combined with a surfactant, were employed to create pores, increasing silica’s surface area. The early-stage introduction of vinyl functional groups prevented the typical post-synthesis reduction in surface area. Porous silica was produced in varying quantities of VTMS, and the synthesized porous silica nanomaterials were incorporated into recycled polyethylene to induce cross-linking. Despite a decrease in surface area with increasing VTMS content, a significant surface area of 883 m2/g was achieved. In conclusion, porous silica with the right amount of vinyl content exhibited improved mechanical performance, including increased tensile strength, compared to conventional porous silica. This study shows that synthesized porous silica with integrated vinyl functional groups effectively enhances the performance of recycled plastics. Full article
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