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Applied Sciences
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Advancements in Sustainable Silicate Materials and Their Applications
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Advancements in Sustainable Silicate Materials and Their Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: 20 November 2026 | Viewed by 1019

Special Issue Editors

Dr. Ziwei Chen

E-Mail Website
Guest Editor
School of Metallurgy and Environment, Central South University, Changsha 410083, China
Interests: environmentally friendly material processing; recycling of waste materials and by-products; machine-learning-aided design of high-temperature materials; MD-simulation-assisted design of clean mineral fibers; structure–thermodynamics–property relationship of molten slags
Special Issues, Collections and Topics in MDPI journals
Dr. Ru Ji

E-Mail Website
Guest Editor
School of Future Cities, University of Science and Technology Beijing, Beijing, China
Interests: building materials; envelopes; porous materials; foamed ceramics; phase change materials; energy-saving; thermal properties; solid waste utilization
Special Issues, Collections and Topics in MDPI journals
Dr. Hao Wang

E-Mail Website
Guest Editor
School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, China
Interests: solid waste; refractory material; heavy metal; porous material
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are inviting submissions to this Special Issue titled “Advancements in Sustainable Silicate Materials and Their Applications”. Carbon neutrality is the world's first result-oriented, standardized, and quantified development goal. To achieve this goal, conversion of industrial and municipal solid wastes into sustainable silicate-based materials serves as a momentous measure. This Special Issue aims to explore the latest advancements in silicate materials derived from solid wastes, focusing on their applications in cement, concrete, ceramic, and glass materials. Contributions addressing novel processing techniques, material properties, and their potential for eco-friendly applications are highly encouraged. Topics of interest include, but are not limited to, the following:

  • Recovery of solid wastes in innovative construction materials.
  • Development of structural or functional ceramics and glass materials from solid waste.
  • Characterization and performance evaluation of waste-derived silicate materials.
  • Innovations in low-carbon material processing technologies.
  • Environmental and economic assessments on waste-derived silicate materials.

Dr. Ziwei Chen
Dr. Ru Ji
Dr. Hao Wang
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 250 words) can be sent to the Editorial Office for assessment.

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. Applied Sciences 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 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

  • silicate materials
  • green products
  • cleaner technology
  • waste treatment
  • upcycling
  • solid waste utilization
  • resource recovery
  • sustainability assessment

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Published Papers (2 papers)

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Research

19 pages, 3706 KB  
Article
Sintering Evolution, Mechanical Performance and Heavy-Metal Environmental Safety of Coal Gasification Slag-Based Ceramsite
by Xinlin Zhai, Weiwei Zhang, Yi Xing, Hao Wang and Chen Hong
Appl. Sci. 2026, 16(9), 4147; https://doi.org/10.3390/app16094147 - 23 Apr 2026
Viewed by 196
Abstract
Coal gasification slag (CGS) is rich in Si-Al-Ca components and thus has potential for ceramic utilization, but associated heavy metals may pose environmental risks. In this study, CGS from Yili (Xinjiang, China) was used as the major raw material (80 wt%), with clay [...] Read more.
Coal gasification slag (CGS) is rich in Si-Al-Ca components and thus has potential for ceramic utilization, but associated heavy metals may pose environmental risks. In this study, CGS from Yili (Xinjiang, China) was used as the major raw material (80 wt%), with clay and waste glass as additives, to prepare ceramsite by firing green pellets (8–12 mm) at 1000–1200 °C. The phase evolution, microstructure, and heavy-metal migration were characterized, and the leaching safety was evaluated. Increasing temperature leads to progressive quartz consumption, enrichment of feldspar-type crystalline phases, and liquid-phase sintering, which together enhance densification. The apparent density and single-particle compressive strength exhibit an “increase-then-decrease” trend with temperature and reach maxima at 1150 °C, where the compressive strength is 15.38 MPa. Heavy-metal behavior is element-specific: As and Zn show stronger volatilization, whereas Mn, Ba, Ni, and Cu are largely retained in the solid phase; Cr shows intermediate, temperature-dependent volatilization. After firing at ≥1150 °C, the leached concentrations of Cr, Mn, Ni, Cu, Zn, As, and Ba under the sulfuric acid–nitric acid test (HJ/T 299-2007) are below the Class III limits of the Chinese Groundwater Quality Standard (GB/T 14848-2017). Considering phase/structure evolution, mechanical performance, and short-term heavy-metal leaching, 1150 °C is identified as the preferred firing temperature in this work. Full article
(This article belongs to the Special Issue Advancements in Sustainable Silicate Materials and Their Applications)
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17 pages, 2936 KB  
Article
Bioactive Glasses Based on SiO2-CaO-Na2O-P2O5-ZrO2 System: Effects of ZrO2 on the Glass Structure, Solubility and Mineral Precipitation in Simulated Body Fluid
by Sahar Mokhtari, Cieran A. Rody and Anthony W. Wren
Appl. Sci. 2026, 16(3), 1642; https://doi.org/10.3390/app16031642 - 6 Feb 2026
Viewed by 422
Abstract
Zirconia (ZrO2) containing bioactive glasses (BG’s) have been synthesized to determine their influence on the structure of a 0.56SiO2–0.15Na2O-0.25CaO-0.04P2O5 glass and the resulting solubility within a hydrated environment. In this study, the SiO2 [...] Read more.
Zirconia (ZrO2) containing bioactive glasses (BG’s) have been synthesized to determine their influence on the structure of a 0.56SiO2–0.15Na2O-0.25CaO-0.04P2O5 glass and the resulting solubility within a hydrated environment. In this study, the SiO2 content was directly substituted with 0.04 ZrO4 (Mol. Fr.) and structural analysis of the Control and Zr-Glasses was conducted using X-ray Photoelectron Spectroscopy (XPS) and Magic Angle Spinning-Nuclear Magnetic Resonance (MAS-NMR). These techniques indicate that the overall network connectivity (NC) of the glass increases with ZrO2/SiO2 substitution, suggesting that ZrO2 acts predominantly as a network former in the glass structure. The ion release profiles of the glasses incubated in de-ionized water from 1 to 1000 h showed decreased dissolution rates for the Zr-containing glasses. The in vitro bioactivity of glasses tested in Simulated Body Fluid (SBF) showed calcium phosphate (CaP) formation on the surface of all glasses after 100–1000 h incubation; however, the Zr-glass experienced delayed CaP precipitation compared to the Zr-free Control. Full article
(This article belongs to the Special Issue Advancements in Sustainable Silicate Materials and Their Applications)
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