Recent Advances in Functionalized Aerogels: Preparation, Modification and Applications

A special issue of Gels (ISSN 2310-2861). This special issue belongs to the section "Gel Applications".

Deadline for manuscript submissions: 31 July 2026 | Viewed by 2006

Special Issue Editor


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Guest Editor
School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: thermal safety and thermal disasters of batteries; thermal management; fire prevention and control
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Special Issue Information

Dear Colleagues,

Aerogels represent a revolutionary class of materials with exceptional properties that hold significant promise for advancing sustainability across various domains. This Special Issue, “Recent Advances in Functionalized Aerogels: Preparation, Modification and Applications”, will highlight recent groundbreaking advances in the strategic functionalization of these nanostructured materials, which have unlocked a new echelon of performance and application potential.

Functionalized aerogels are now engineered as high-efficiency adsorbents for environmental remediation (e.g., capturing heavy metals, organic pollutants, and clearing oil spills), as advanced components in energy storage devices (electrodes in supercapacitors and batteries), and as smart catalysts. Furthermore, their biocompatibility has been exploited for biomedical applications, including drug delivery systems, tissue engineering scaffolds, and biosensors.

Overall, despite aerogels’ unique properties and potential applications across various industries. Ongoing advancements in material science and engineering are expected to overcome current limitations, paving the way for broader use of aerogels in commercial and industrial applications. I am pleased to invite you, as a renowned expert in the field, to contribute to this Special Issue and the development of scientific studies on functionalized aerogels.

Dr. Mingyi Chen
Guest Editor

Manuscript Submission Information

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Keywords

  • aerogels
  • environment
  • energy storage
  • smart catalysts
  • drug delivery
  • tissue engineering
  • biosensors

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Published Papers (2 papers)

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Research

23 pages, 5727 KB  
Article
Titanium-Integrated Magnetic Silica Aerogels via Microfluidic Synthesis for Pesticide Removal from Water
by Elena-Theodora Moldoveanu, Adelina-Gabriela Niculescu, Dana-Ionela Tudorache (Trifa), Alexandra-Cătălina Bîrcă, Bogdan Purcăreanu, Ionela C. Voinea, Miruna S. Stan, Bogdan-Ștefan Vasile, Dan Eduard Mihaiescu, Tony Hadibarata and Alexandru Mihai Grumezescu
Gels 2026, 12(4), 309; https://doi.org/10.3390/gels12040309 - 3 Apr 2026
Viewed by 440
Abstract
Pesticides are a major cause of water contamination, making this issue a major environmental and public health concern. In this context, the development of advanced and effective remediation materials is needed. In this study, a titanium-functionalized magnetic silica aerogel (AG-Ti@Fe3O4 [...] Read more.
Pesticides are a major cause of water contamination, making this issue a major environmental and public health concern. In this context, the development of advanced and effective remediation materials is needed. In this study, a titanium-functionalized magnetic silica aerogel (AG-Ti@Fe3O4-SA) was successfully prepared via microfluidics and evaluated for water decontamination. The structural and compositional features of the aerogel were determined using XRD, FT-IR, RAMAN, SEM, TEM, BET, and DLS, confirming the formation of the aerogel with dispersed Fe3O4-SA nanoparticles and the successful incorporation of titanium within the aerogel matrix. Regarding decontamination potential, the aerogel was tested against a pesticide mixture, yielding pesticide-dependent removal efficiencies (16–100%). Notably, the aerogel exhibited a high affinity for organophosphorus pesticides and a moderate affinity for polar compounds, whereas bulky hydrophobic pesticides showed lower adsorption. In vitro, the aerogel induced a moderate decrease in HaCaT cell viability after 48 h of exposure, accompanied by a slight increase in lactate dehydrogenase release, while HEK293 cells remained largely unaffected, indicating a cell-type-dependent biological response. Overall, the findings from this screening-level study recommend AG-Ti@Fe3O4-SA aerogel as a promising selective adsorbent for pesticide removal. Full article
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18 pages, 4997 KB  
Article
Towards Enhanced Battery Thermal Safety: A Lightweight and Mechanically Robust Aerogel with Superior Insulation
by Yin Chen, Ruinan Sheng and Mingyi Chen
Gels 2026, 12(1), 54; https://doi.org/10.3390/gels12010054 - 5 Jan 2026
Cited by 2 | Viewed by 1236
Abstract
With the continuous increase in energy density of lithium-ion batteries, thermal safety has become a critical constraint on their further development. To address the limitations of mechanical brittleness and high-temperature infrared transparency in SiO2 aerogels for thermal safety applications in lithium-ion batteries, [...] Read more.
With the continuous increase in energy density of lithium-ion batteries, thermal safety has become a critical constraint on their further development. To address the limitations of mechanical brittleness and high-temperature infrared transparency in SiO2 aerogels for thermal safety applications in lithium-ion batteries, this study developed a novel nanofiber aerogel composite by incorporating chitosan and MXene into a SiO2 aerogel matrix. This material retains the characteristics of being ultra-lightweight and highly elastic while significantly enhancing mechanical strength and high-temperature insulation performance. It exhibits a thermal conductivity of 0.034 W/m K at room temperature and 0.053 W/m K at 400 °C, alongside a compressive strength of 1.172 MPa. In battery thermal runaway propagation tests, the aerogel successfully prevented propagation in serially connected and electrically isolated systems, and delayed thermal runaway propagation by 35 s in a parallel system, demonstrating excellent thermal runaway suppression capability. This work provides an effective material solution for the practical application of high-performance thermal insulation aerogels in battery safety protection and offers inspiration for developing new insulating ceramic aerogels. Full article
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