polymers-logo

Journal Browser

Journal Browser

Innovations in Polymer Composites for Sustainable Energy Harvesting and Environmental Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Composites and Nanocomposites".

Deadline for manuscript submissions: closed (31 January 2025) | Viewed by 3704

Special Issue Editors


E-Mail Website
Guest Editor
Laboratory of Physics for Materials and Emergent Technologies (LaPMET), Physics Centre of Minho and Porto Universities (CFUM), 4710-057 Braga, Portugal
Interests: synthesis of novel donor-acceptor molecules and dipeptides; their functionalization into biopolymer fibers using the electrospinning technique; and the evaluation of their non-linear optical and energy harvesting properties
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Laboratory of Physics for Materials and Emergent Technologies (LaPMET), Physics Centre of Minho and Porto Universities (CFUM), 4710-057 Braga, Portugal
Interests: nanomaterials; nanotechnology; nanofibers; electrospinning; magnetic nanostructures; ferroelectric nanomaterials; multiferroic nano-composites; dielectrics and piezoelectrics; spintronics; energy harvesting; EMI shielding
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Laboratory of Physics for Materials and Emergent Technologies (LaPMET), Physics Centre of Minho and Porto Universities (CFUM), 4710-057 Braga, Portugal
Interests: electrospinning; hybrid functional materials; biomaterials; nanocrystalline materials; organic and semi-organic crystals; piezoelectric materials; optical second harmonic generation; energy harvesting
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In the middle of significant advances in the last few decades regarding the incorporation of materials into polymers, a distinct class of hybrid materials has emerged, exhibiting exceptional physical properties that have profound implications in various fields, from electronics to biomaterials. Recognizing the demands of environmental imperatives, our newly proposed Special Issue, "Innovations in Polymer Composites for Sustainable Energy Harvesting and Environmental Applications", explicitly addresses the imperative for materials characterized not only by superior performance, but also by a commitment to environmental management.

This specialized collection critically analyzes advances in the incorporation of materials into polymer composites, with a focus on enlightening the strategic methodologies employed for integrating and discerning the resulting improvements in hybrid material properties.

The topics of interest include but are not limited to:

  • piezoelectric polymer composites;
  • electrospinning of hybrid composites;
  • polymeric nanofibers;
  • ferroelectric polymer composites;
  • multiferroic polymer composites;
  • dielectric polymeric materials;
  • thin films in polymeric composites;
  • pyroelectric polymeric materials for thermal energy harvesting;
  • piezoelectric polymeric materials for energy harvesting;
  • polymeric nanocomposite thin films;
  • conductive polymer thin films;
  • biodegradable polymer thin films;
  • optoelectronic polymer thin films;
  • thin-film polymer-based sensors.

We invite you to submit contributions for this Special Issue, including full papers and reviews.

Dr. Rosa Maria Ferreira Baptista
Dr. Bernardo Gonçalves Almeida
Dr. Etelvina de Matos Gomes
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. Polymers 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 2700 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

  • piezoelectric polymer composites
  • electrospinning
  • polymeric nanofibers
  • ferroelectric polymer composites
  • multiferroic polymer composites
  • dielectric polymeric materials
  • thin films
  • conductive polymers
  • biodegradable polymers
  • optoelectronic polymers
  • polymer-based sensors

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

16 pages, 5757 KiB  
Article
Facile Electret Fabrication for Energy Harvesting from Human Gait
by Michele Zanoletti, Paolo Vitulo, Riccardo Morina, Daniele Callegari, Riccardo Viola, Piercarlo Mustarelli and Maddalena Patrini
Polymers 2025, 17(5), 664; https://doi.org/10.3390/polym17050664 - 28 Feb 2025
Viewed by 474
Abstract
Dielectric elastomer generators (DEGs) are electrostatic transducers capable of harvesting electrical energy from oscillating mechanical parts and storing it in a battery or supercapacitor. The energy conversion element typically consists of a flexible capacitor with a variable capacitance that depends on the applied [...] Read more.
Dielectric elastomer generators (DEGs) are electrostatic transducers capable of harvesting electrical energy from oscillating mechanical parts and storing it in a battery or supercapacitor. The energy conversion element typically consists of a flexible capacitor with a variable capacitance that depends on the applied stress cycle and requires an external voltage source (bias voltage). In designing an energy harvesting device from human gait, we propose integrating two components: a dielectric elastomer fabricated using a nanocomposite polyurethane (TPU-CaCu3Ti4O12) and an electret serving as a bias voltage source. In this work, we report on the electret fabrication and long-term charge retention properties using corona charging. The manufactured electrets are tested in coupling with the dielectric elastomer and allowed us to harvest an energy amount of 62 µJ/cycle (3.1 µJ/cm2) on a resistive load of 450 MΩ during motion cycles at a frequency of 0.5 Hz. Given the materials used, this approach is well suited to harvesting energy from human gait and holds promise for powering wearable devices. Full article
Show Figures

Figure 1

15 pages, 20460 KiB  
Article
Compatibilizer Efficiency in Enhancing Marine Plastic Waste Valorization Through Simulated Recycled Plastic Blends
by Sibele Piedade Cestari, Pedro Veiga Rodrigues, Ana Cristina Ribeiro, Maria Cidália Rodrigues Castro, Vasco Cruz, Ana Rita Torres, Nuno Ramos and Ana Vera Machado
Polymers 2024, 16(23), 3441; https://doi.org/10.3390/polym16233441 - 8 Dec 2024
Cited by 1 | Viewed by 1119
Abstract
This study investigated the optimal combination of compatibilizers and stabilizers to enhance the value of marine environment plastic (MEP). The composition of the plastics was analysed, and a simulated recycled plastic blend (sMEP) was prepared based on a simplified composition of actual MEP. [...] Read more.
This study investigated the optimal combination of compatibilizers and stabilizers to enhance the value of marine environment plastic (MEP). The composition of the plastics was analysed, and a simulated recycled plastic blend (sMEP) was prepared based on a simplified composition of actual MEP. Different concentrations of three commercial compatibilizers (C1, C2 and C3) were tested to improve tensile strength. The tensile tests indicated that the blend compatibilized with 10 wt.% C3 (polypropylene grafted with maleic anhydride) exhibited the highest increase in tensile strength. This optimal compatibilization was then combined with two commercial stabilizers and applied to a simulated MEP blend. Scanning electron microscopy images showed that all blends had a continuous polyethylene phase with dispersed poly(ethylene terephthalate) (PET) and polypropylene (PP) droplets. The simulated blend with 10 wt.% C3 exhibited a reduced PET droplet size in the dispersed phase. Differential scanning calorimetry results revealed a decrease in polyethylene crystallinity and an increase in PP crystallinity. The improved properties of the blend were attributed to the effectiveness of the C3 compatibilizer in enhancing the interface between the PP and PET phases. An effective formulation was developed to valorise marine-sourced plastics by leveraging existing scientific knowledge and accessible commercial additives. Applying this enhanced formulation to real MEP not only demonstrated its effectiveness, but also highlighted a practical approach for reducing plastic pollution and supporting circular economy principles, contributing to environmental conservation efforts. Full article
Show Figures

Figure 1

14 pages, 5855 KiB  
Article
Electrospun Nanofiber Dopped with TiO2 and Carbon Quantum Dots for the Photocatalytic Degradation of Antibiotics
by Valentina Silva, Diana L. D. Lima, Etelvina de Matos Gomes, Bernardo Almeida, Vânia Calisto, Rosa M. F. Baptista and Goreti Pereira
Polymers 2024, 16(21), 2960; https://doi.org/10.3390/polym16212960 - 22 Oct 2024
Cited by 2 | Viewed by 1325
Abstract
Novel photocatalysts were synthesized through the association of carbon quantum dots (CQDs) with commercial (P25) titanium dioxide (TiO2) by sonication. The resulting TiO2/CQDs composite was then incorporated into the polyamide 66 (PA66) biopolymer nanofibers using the electrospinning technique, considering [...] Read more.
Novel photocatalysts were synthesized through the association of carbon quantum dots (CQDs) with commercial (P25) titanium dioxide (TiO2) by sonication. The resulting TiO2/CQDs composite was then incorporated into the polyamide 66 (PA66) biopolymer nanofibers using the electrospinning technique, considering a composite nanoparticles-to-polymer ratio of 1:2 in the electrospinning precursor solution. The produced nanofibers presented suitable morphology and were tested for the photocatalytic degradation under simulated solar radiation of 10 mg L−1 of amoxicillin (AMX) and sulfadiazine (SDZ), in phosphate buffer solution (pH 8.06) and river water, using 1.5 g L−1 of photocatalyst. The presence of the photocatalyst increased the removal of AMX in phosphate buffer solution by 30 times, reducing the AMX degradation half-life time from 62 ± 1 h (without catalyst) to 1.98 ± 0.06 h. Moreover, SDZ degradation half-life time in phosphate buffer solution was reduced from 5.4 ± 0.1 h (without catalyst) to 1.87 ± 0.05 h in the presence of the photocatalyst. Furthermore, the PA66/TiO2/CQDs were also efficient in river water samples and maintained their performance in at least three cycles of SDZ photodegradation in river water. The presented results evidence that the produced photocatalyst can be a promising and sustainable solution for antibiotics’ efficient removal from water. Full article
Show Figures

Figure 1

Back to TopTop