[HTML][HTML] Geopolymers as sustainable eco-friendly materials: Classification, synthesis routes, and applications in wastewater treatment

AM Elgarahy, A Maged, MG Eloffy, M Zahran… - Separation and …, 2023 - Elsevier
Over the past few decades, polymers have been extensively employed in various sectors
attributed to their exceptional properties. The presence of vast quantities of non-degradable …

[HTML][HTML] Insights into alkali and acid-activated volcanic ash-based materials: A review

JNY Djobo, S Tome - Cement and Concrete Composites, 2024 - Elsevier
This review provides a comprehensive study of the fundamentals of the alkaline and acid
activation of volcanic ashes (VA), for mainstreaming their use as a conventional feedstock …

Characterization and properties of geopolymer nanocomposites with different contents of nano-CaCO3

H Assaedi, T Alomayri, CR Kaze, BB **dal… - … and Building Materials, 2020 - Elsevier
This study investigated the impact of calcium carbonate nanoparticles (nano-CaCO 3) on the
mechanical properties of geopolymer composites. To that end, varying contents of nano …

Mechanical and microscopic properties of fly ash phosphoric acid-based geopolymer paste: A comprehensive study

S Pu, Z Zhu, W Song, W Huo, J Zhang - Construction and Building Materials, 2021 - Elsevier
Fly ash (FA) is a common industrial by-product, which is usually used as raw materials of
alkali-activated geopolymer or cement additive. However, there are few studies on …

Design of acid-geopolymers based on clays by-products for methylene blue removal from wastewater

S En-Naji, S Ghazi, H Mabroum, S Mabroum… - Applied Clay …, 2023 - Elsevier
Morocco has significant phosphate reserves, but the extraction process generates a lot of
waste rock. To tackle this problem, this study aims to make use of clay, a by-product of …

Strongly acidic lead contaminated soil solidification/stabilization using metakaolin-modified fly ash phosphoric-based geopolymer

S Pu, B Xu, G Cai, W Duan, Y Liu, L Lang… - Chemical Engineering …, 2024 - Elsevier
The existing binders are difficult to be compatible with the acidic environment of acidic heavy
metal contaminated soil, it is hard to repair acidic heavy metal contaminated soil. In this …

Solidification performance and mechanism of typical radioactive nuclear waste by geopolymers and geopolymer ceramics: a review

J Liu, Y Xu, W Zhang, J Ye, R Wang - Progress in Nuclear Energy, 2024 - Elsevier
The radioactive waste generated from nuclear fuel cycles poses significant risks to the
natural environment and the health of surrounding residents. Thus, the utilization of …

XRD and TG-DTA study of new phosphate-based geopolymers with coal ash or metakaolin as aluminosilicate source and mine tailings addition

DD Burduhos Nergis, P Vizureanu, AV Sandu… - Materials, 2021 - mdpi.com
Coal ash-based geopolymers with mine tailings addition activated with phosphate acid were
synthesized for the first time at room temperature. In addition, three types of aluminosilicate …

Valorization of sugar beet waste as a foaming agent for metakaolin geopolymer activated with phosphoric acid

AM Rashad, M Gharieb, H Shoukry… - Construction and Building …, 2022 - Elsevier
This study is the first attempt to investigate the possibility of recycling carbonated lime
residue (CR)(a by-product from the sugar beet-making industry) as a foaming agent. For this …

Synthesis, characterization and application of acid and alkaline activated volcanic ash-based geopolymers for adsorptive remotion of cationic and anionic dyes from …

S Tome, DT Hermann, VO Shikuku, S Otieno - Ceramics International, 2021 - Elsevier
In this work, two geopolymers were prepared by acid activation (GPAc) and alkaline
activation (GPAl) approaches using volcanic ash (VA) as the precursor material. The …