Alkali-activated materials as photocatalysts for aqueous pollutant degradation

Alzeer, Mohammad I.M.; MacKenzie, Kenneth J.D.

doi:10.1016/b978-0-323-88438-9.00004-1

Cited by 2 publications

(2 citation statements)

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“…The strengths of all the samples was adequate for biomedical applications, but that of the Ca3(PO4)2 sample was slightly greater, making it the more promising material [36]. This brief summary covers only a small part of the work of the New Zealand geopolymer group over the last 20 years, but more extensive details of our work in several of these research areas can be found in the book chapters [37][38][39][40][41][42][43] and summarised in Figure 2.…”

Section: A Brief Summarymentioning

confidence: 99%

History of Developments in Geopolymer Science in New Zealand: A Brief Review

MacKenzie

2024

Citi Sci

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This brief review covers some of the highlights of the research into the chemistry and various applications of aluminosilicate geopolymers carried out in the Chemistry Department of Victoria University of Wellington over the last 20 years. Because these materials are generally amorphous to X-rays, the technique of Nuclear Magnetic Resonance with Magic Angle Spinning (MAS NMR) played a unique and important role in these studies. Many potential applications of geopolymers, were investigated over this period, including their use as structural materials, catalysts for commercially important organic reactions, bioactive materials and photoactive materials. Most of the initial work was carried out on clay-based starting materials because of their purity, but more practical materials were also developed, based on the by-products of industrial processing (fly ash, blast furnace slag, red mud, etc) This work led to more than 62 published papers in international journals, some of which are discussed here.

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Section: A Brief Summarymentioning

confidence: 99%

History of Developments in Geopolymer Science in New Zealand: A Brief Review

MacKenzie

2024

Citi Sci

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“…Here, some interesting properties include the Lewis and Brønsted acid sites of the materials and the ease of introducing catalytically active metals via substation or ion‐exchange 107 . In wastewater treatment, the targeted application is to abate organic micropollutants via advanced oxidation processes (i.e., enhanced formation of radicals) such as photocatalysis, 108 catalytic wet peroxide oxidation, 109 or peracetic acid‐based oxidation 110 . In terms of air pollution treatment, the studied applications include oxidation of volatile organic compounds, reduction of nitrogen oxides, adsorption of CO 2 , and separation of particulate matter 111–114 .…”

Section: Where To Go: New Perspectivementioning

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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Alkali-activated materials as photocatalysts for aqueous pollutant degradation

Cited by 2 publications

References 82 publications

History of Developments in Geopolymer Science in New Zealand: A Brief Review

History of Developments in Geopolymer Science in New Zealand: A Brief Review

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

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