Structural composition of antibacterial zinc-doped geopolymers

Kang, Xiaojuan; Ye, Hailong

doi:10.1039/d3dt01235b

Cited by 5 publications

(3 citation statements)

References 49 publications

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“…134 Special attention has received the design of geopolymers with properties suitable for bone tissue engineering, for example, combined with hydroxyapatite and other calcium phosphate ceramics, 135 and for dental restorative materials. 136,137 On the other hand, applications of geopolymers in contact with the human body have also raised concerns, particularly regarding potential toxicity, pH variation effects, and low osteoconductivity. An alternative to tackle such issues is the formulation of composite or hybrid geopolymer systems, for example, combined with bioactive ceramics, glasses, and biopolymers.…”

Section: From Construction Materials To High-end Technical Applicationsmentioning

confidence: 99%

Why geopolymers and alkali‐activated materials are key components of a sustainable world: A perspective contribution

Kriven,

Leonelli,

Provis

et al. 2024

J Am Ceram Soc.

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This perspective article delves into the transformative potential of alkali‐activated materials, acid‐activated materials, and geopolymers in mitigating climate change and market challenges. To harness the benefits of these materials, a comprehensive strategy is proposed. This strategy aims to integrate these materials into existing construction regulations, facilitate certification, and promote market access. Emphasizing research and innovation, the article advocates for, increased funding to refine the chemistry and production of these materials, prioritizing low‐cost alternatives and local waste materials. Collaboration between academia and industry is encouraged to expedite technological advances and broaden applications. This article also underscores the need to develop economic and business models emphasizing the long‐term benefits of these materials, including lower life‐cycle costs and reduced environmental impact. Incentivizing adoption through financial mechanisms like tax credits and subsidies is suggested. The strategy also includes scaling up production technology, fostering industrial collaboration for commercial viability, and developing global supply chains. Educational programs for professionals and regulators are recommended to enhance awareness and adoption. Additionally, comprehensive life‐cycle assessments are proposed to demonstrate environmental benefits. The strategy culminates in expanding the applications of these materials beyond construction, fostering international collaboration for knowledge sharing, and thus positioning these materials as essential for sustainable construction and climate change mitigation.

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Section: From Construction Materials To High-end Technical Applicationsmentioning

confidence: 99%

Why geopolymers and alkali‐activated materials are key components of a sustainable world: A perspective contribution

Kriven,

Leonelli,

Provis

et al. 2024

J Am Ceram Soc.

View full text Add to dashboard Cite

show abstract

“…In recent years, the potential application of geopolymer materials for fabrication of systems showing antimicrobial properties has been observed [104,105]. The antimicrobial Currently, many studies are being performed to determine the potential of geopolymers in the energy industry, including their usability in geothermal energy applications [101], energy conversion [102] and carbon capture and storage [103].…”

Section: Geopolymer Applications In Microbial Protectionmentioning

confidence: 99%

“…In recent years, the potential application of geopolymer materials for fabrication of systems showing antimicrobial properties has been observed [104,105]. The antimicrobial activity of geopolymer-based materials was investigated by Rondinella et al Here, a metakaolin-based geopolymer was used to form a multilayer coating on a prosthetic device made of a Ti 6 Al 4 V alloy.…”

Section: Geopolymer Applications In Microbial Protectionmentioning

confidence: 99%

Geopolymers: Advanced Materials in Medicine, Energy, Anticorrosion and Environmental Protection

Kudłacik-Kramarczyk,

Drabczyk,

Figiela

et al. 2023

Materials

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The initial predictions of the importance of geopolymers primarily assumed use mainly in the construction sector. However, as research progresses, it is becoming clear that these versatile materials demonstrate the ability to greatly exceed their original applications, as characterized in detail in this review article. To the best of our knowledge, there is no literature review concerning geopolymer materials that compiles the diverse applications of these versatile materials. This paper focuses on geopolymer applications beyond the construction industry. The surprising application potential of geopolymers in medicine has become a topic of particular interest. Therefore, considerable attention in this paper is devoted to characterizing the utility of these materials in tissue engineering, dentistry and drug delivery systems. Geopolymers not only have exceptional heat resistance and compressive strength, making them durable and resistant to manipulation (over five times less drug released from the geopolymer carrier compared to the commercial formulation), but also provide a robust solution for extended-release drug delivery systems, especially in opioid formulations. Their chemical stability, porous structure and ability to maintain structure after repeated regeneration processes speak to their potential in water treatment. Geopolymers, which excel in the energy industry as refractory materials due to their resistance to high temperatures and refractory properties, also present potential in thermal insulation and energy storage. It was demonstrated that geopolymer-based systems may even be 35% cheaper than conventional ones and show 70% lower thermal conductivity. In terms of protection against microorganisms, the possibility of modifying geopolymers with antimicrobial additives shows their adaptability, maintaining their effectiveness even under high-temperature conditions. Research into their use as anticorrosion materials is targeting corrosion-resistant coatings, with geopolymers containing graphene oxide showing particularly promising results. The multitude of potential applications for geopolymers in a variety of fields reflects their enormous potential. As research progresses, the scope of their possibilities continues to expand, offering innovative solutions to pressing global challenges.

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Preparation of Loess‐Clay Based Eco‐Friendly Geopolymer for Efficient Removal of Pollutants in Water

Li,

Yang,

Liu

et al. 2024

Chem Eng & Technol

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Heavy metals and dyes cause serious harm for water environment, geopolymer materials with the large pores and specific surface area, and easy modification of pore surface have received extensive attention in wastewater treatment. Herein, using loess‐clay (LC) as natural mineral materials, we developed an eco‐friendly geopolymer of loess‐clay (GpLC) with excellent adsorption properties and promotion plant growth was prepared by alkali excitement. Its morphology and structure were exhibited by scanning electron microscopy, Fourier transform infrared spectroscopy, XRD, and Brunauer–Emmett–Teller. Moreover, its adsorption property for removing metal ions and different dyes was measured, and the adsorption kinetics and thermodynamics were investigated. GpLC presented excellent adsorption ability for Pb2+, which the removal rate got to 98.7 %. It had the universality of removing organic pollutants, and the removal rate reached to 98.0 %. It was dominated chemisorption and single‐layer adsorption, which GpLC conformed to quasi‐second‐order adsorption kinetics, and being more consistent with Langmuir isothermal model. Furthermore, it was found that GpLC could promote growth of crops as it contain P and K element with essential element of plants. In summary, it provides insights and strategy for developing a kind of eco‐friendly functional materials with strong adsorption capacity and promoting plant growth, and it is an effective method for reusing loess resources.

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Structural composition of antibacterial zinc-doped geopolymers

Abstract: Elucidating the structural composition of three-dimensional amorphous sodium-aluminosilicate-hydrates (Na2O-Al2O3-SiO2-H2O, N-A-S-H) gel in geopolymers is a prerequisite for its prevailing application in biomaterials, construction, waste management, and climate change mitigation. An...

Cited by 5 publications

References 49 publications

Why geopolymers and alkali‐activated materials are key components of a sustainable world: A perspective contribution

Why geopolymers and alkali‐activated materials are key components of a sustainable world: A perspective contribution

Geopolymers: Advanced Materials in Medicine, Energy, Anticorrosion and Environmental Protection

Preparation of Loess‐Clay Based Eco‐Friendly Geopolymer for Efficient Removal of Pollutants in Water

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