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Materials
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Recycling and Resource Utilization of Waste
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Recycling and Resource Utilization of Waste

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Green Materials".

Deadline for manuscript submissions: 20 October 2024 | Viewed by 880

Special Issue Editors

Prof. Dr. Grzegorz Mazurek

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Guest Editor
Faculty of Civil Engineering and Architecture, Kielce University of Technology, 25-314 Kielce, Poland
Interests: pavement engineering; FEM modeling; bitumen and bituminous composite rheology; data mining; design of experiment theory; recycled aggregate; recycling and utilization of polymer plastics
Special Issues, Collections and Topics in MDPI journals
Dr. Przemysław Buczyński

E-Mail Website
Guest Editor
Faculty of Civil Engineering and Architecture, Kielce University of Technology, 25-314 Kielce, Poland
Interests: cold recycled material mixtures; pavement engineering; cold recycling; reclaimed asphalt pavement; foamed bitumen; bitumen emulsion; road binder; bitumen and bituminous composites

Special Issue Information

Dear Colleagues,

Volumes of stockpiled waste containing all kinds of polymers have prompted the design of new material solutions in civil engineering. The climate change we are witnessing is a product of human industrial activity, which, in addition to pushing the greenhouse effect to dangerous levels, generates massive amounts of waste. However, with the increasing spotlight on sustainability, incredible advances in science and technology have led to the transformation of a significant portion of waste materials into components for composites in civil engineering. Since sustainable road construction requires the optimal use of natural resources, there is a great need to expand our knowledge and practices regarding the reuse (recycling) of waste materials as modifiers and additives.

We are delighted to invite you to submit original research articles that will stimulate further work on the development of modern composite materials containing recycled materials or by-product waste in civil engineering.

Prof. Dr. Grzegorz Mazurek
Dr. Przemysław Buczyński
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. Materials 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 2600 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

  • recycled materials as matrices for composites
  • novel applications of waste-based construction materials
  • rheological modeling of waste-polymer-modified bitumen and asphalt pavement
  • modification of binders and asphalt pavements with waste polymers
  • advanced statistical methods for predicting recycled materials’ properties
  • methods for waste polymer utilization

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Published Papers (1 paper)

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Research

20 pages, 7272 KiB  
Article
Preparation of Supercapacitor Carbon Electrode Materials by Low-Temperature Carbonization of High-Nitrogen-Doped Raw Materials from Food Waste
by Qingnan Mu, Chang Liu, Yao Guo, Kun Wang, Zhijie Gao, Yuhan Du, Changqing Cao, Peigao Duan and Krzysztof Kapusta
Materials 2024, 17(16), 3984; https://doi.org/10.3390/ma17163984 - 10 Aug 2024
Viewed by 645
Abstract
To address the problem of the low nitrogen (N) content of carbon materials prepared through the direct carbonization of food waste, soybean meal and egg whites with high N contents were selected to carry out carbonization experiments on food waste. At 220 °C, [...] Read more.
To address the problem of the low nitrogen (N) content of carbon materials prepared through the direct carbonization of food waste, soybean meal and egg whites with high N contents were selected to carry out carbonization experiments on food waste. At 220 °C, the effects of hydrothermal carbonization and microwave carbonization on the properties of supercapacitor electrode materials were investigated. The results show that food waste doped with soybean meal and egg whites could achieve good N doping. At a current density of 1 A·g−1, the specific capacitance of the doped carbon prepared by hydrothermal doping is as high as 220.00 F·g−1, which is much greater than that of the raw material prepared through the hydrothermal carbonization of food waste alone, indicating that the hydrothermal carbonization reactions of soybean meal, egg white, and food waste promote the electrochemical properties of the prepared carbon materials well. However, when a variety of raw materials are mixed for pyrolysis carbonization, different raw materials cannot be fully mixed in the pyrolysis process, and under the etching action of potassium hydroxide, severe local etching and local nonetching occur, resulting in a severe increase in the pore size distribution and deterioration of the electrochemical performance of the prepared carbon materials. At a current density of 1 A·g−1, the specific capacitance of these prepared carbon materials is 157.70 F·g−1, whereas it is only 62.00 F·g−1 at a high current density of 20 A·g−1. Therefore, this study suggests that the hydrothermal carbonization process is superior to the microwave pyrolysis carbonization process for preparing supercapacitor electrode materials with multiple samples doped with each other. Full article
(This article belongs to the Special Issue Recycling and Resource Utilization of Waste)
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