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Sustainability, Circular Economy and Waste Recycling: Advances in Materials Research...
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Sustainability, Circular Economy and Waste Recycling: Advances in Materials Research (2nd Edition)

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

Deadline for manuscript submissions: 20 August 2024 | Viewed by 932

Special Issue Editor

Dr. Daniela Fico

E-Mail Website
Guest Editor
1. National Research Council—Institute of Heritage Science (CNR-ISPC), Ecotekne Campus, s.p. 6, Lecce-Monteroni, 73100 Lecce, Italy
2. Department of Engineering for Innovation, University of Salento, Building P, Ecotekne Campus, s.p. 6, Lecce-Monteroni, 73100 Lecce, Italy
Interests: cultural heritage; analytical chemistry; materials engineering; archaeometry; innovative and green materials; additive manufacturing; rehabilitation processes; building applications; coatings; 3D printing; bio-based polymers and composites; chromatographic and spectroscopic techniques; conservation and restoration; waste recycling; circular economy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Today, ecological problems have led to a limited production of plastics and non-biodegradable materials and their replacement by materials with a low environmental impact. Biodegradable macromolecules and their composites are desirable candidates for a wide range of applications to overcome the difficulties of waste disposal. Moreover, one of the most crucial trends in current research on the development of new materials is associated with the use of waste raw materials or industrial by-products. This approach takes into account not only ecological issues but also economic ones, since recycled and waste materials are significantly cheaper than virgin raw materials, and their use produces low-cost end products. In industries, the substitution of raw materials that must be disposed of, by-products and waste with renewable and recyclable raw materials constitutes an important transition to sustainable development and the Circular Economy: topics that many countries have already introduced into their environmental agenda through the creation of specific legislation.

Considering the attention that these themes receive today, the 2nd Edition of this Special Issue intends once again to highlight advanced research on the development of new eco-friendly materials and new technologies for sustainability and the Circular Economy. Topics include, but are not limited to, the following:

  • Biopolymers and biocomposites from natural raw materials;
  • Innovative materials from recycled waste and industrial by-products;
  • Synthesis, preparation and processing applications;
  • Characterisation, properties and potential of new biodegradable and ecofriendly materials;
  • Studies on durability and biodegradability under various conditions and environments;
  • Life-cycle assessment of new materials;
  • Circular Economy, sustainability, innovative and green materials.

Original research, Review articles, Case studies and Research papers focusing on chemical, engineering and physical processes, developed with new green materials and other investigations, are accepted. Papers focusing on topics such as sustainability, Circular Economy, and cost-effective technologies for different applications are also welcome.

I look forward to receiving your contributions.

Best regards,

Dr. Daniela Fico
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. 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

  • circular economy
  • sustainability
  • waste
  • recycling
  • bio-based materials
  • ecofriendly materials and processes
  • green engineering

Related Special Issue

Published Papers (2 papers)

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Research

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15 pages, 6276 KiB  
Article
Synthesis of BiOX-Red Mud/Granulated Blast Furnace Slag Geopolymer Microspheres for Photocatalytic Degradation of Formaldehyde
by Ping Lu, Na Zhang, Ying Wang, Yidi Wang, Jiale Zhang, Qingyi Cai and Yihe Zhang
Materials 2024, 17(7), 1585; https://doi.org/10.3390/ma17071585 - 30 Mar 2024
Viewed by 504
Abstract
Release of formaldehyde gas indoors is a serious threat to human health. The traditional adsorption method is not stable enough for formaldehyde removal. Photocatalytic degradation of formaldehyde is effective and rapid, but photocatalysts are generally expensive and not easy to recycle. In this [...] Read more.
Release of formaldehyde gas indoors is a serious threat to human health. The traditional adsorption method is not stable enough for formaldehyde removal. Photocatalytic degradation of formaldehyde is effective and rapid, but photocatalysts are generally expensive and not easy to recycle. In this paper, geopolymer microspheres were applied as matrix materials for photocatalysts loading to degrade formaldehyde. Geopolymer microspheres were prepared from red mud and granulated blast furnace slag as raw materials by alkali activation. When the red mud doping was 50%, the concentration of NaOH solution was 6 mol/L, and the additive amount was 30 mL, the prepared geopolymer microspheres possessed good morphological characteristics and a large specific surface area of 38.80 m2/g. With the loading of BiOX (X = Cl, Br, I) photocatalysts on the surface of geopolymer microspheres, 85.71% of formaldehyde gas were adsorbed within 60 min. The formaldehyde degradation rate of the geopolymer microspheres loaded with BiOI reached 87.46% within 180 min, which was 23.07% higher than that of the microspheres loaded with BiOBr, and 50.50% higher than that of the microspheres loaded with BiOCl. While ensuring the efficient degradation of formaldehyde, the BiOX (X = Cl, Br, I)-loaded geopolymer microspheres are easy to recycle and can save space. This work not only promotes the resource utilization of red mud and granulated blast furnace slag, but also provides a new idea on the formation of catalysts in the process of photocatalytic degradation of formaldehyde. Full article
(This article belongs to the Special Issue Sustainability, Circular Economy and Waste Recycling: Advances in Materials Research (2nd Edition))
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Review

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19 pages, 4685 KiB  
Review
Application of the Industrial Byproduct Gypsum in Building Materials: A Review
by Zhiqing Xie, Xiaoming Liu, Zengqi Zhang, Chao Wei and Jiarui Gu
Materials 2024, 17(8), 1837; https://doi.org/10.3390/ma17081837 - 16 Apr 2024
Viewed by 278
Abstract
The industrial byproduct gypsum is a general term for byproducts discharged from industrial production with calcium sulfate as the main ingredient. Due to the high number of impurities and production volume, the industrial byproduct gypsum is underutilized, leading to serious environmental problems. At [...] Read more.
The industrial byproduct gypsum is a general term for byproducts discharged from industrial production with calcium sulfate as the main ingredient. Due to the high number of impurities and production volume, the industrial byproduct gypsum is underutilized, leading to serious environmental problems. At present, only desulfurization gypsum and phosphogypsum have been partially utilized in cementitious materials, cement retarders, etc., while the prospects for the utilization of other byproduct gypsums remain worrying. This paper mainly focuses on the sources and physicochemical properties of various types of gypsum byproducts and summarizes the application scenarios of various gypsums in construction materials. Finally, some suggestions are proposed to solve the problem of the industrial byproduct gypsum. This review is informative for solving the environmental problems caused by gypsum accumulation. Full article
(This article belongs to the Special Issue Sustainability, Circular Economy and Waste Recycling: Advances in Materials Research (2nd Edition))
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