article · Developments in the Built Environment
This study developed green multifunctional geopolymeric sorbent materials from slag, with one variant incorporating 50 wt.% lead sludge. The materials were activated with sodium hydroxide and cured either normally or hydrothermally under varying steam pressures. Characterisation techniques confirmed the structural and chemical properties of the sorbents. A hydrothermally cured specimen, G/5bar, exhibited superior mechanical strength and a high adsorption capacity for cationic dyes. This enhanced performance is attributed to the formation of specific compounds like CSH, CAH, CASH, and NASH, which created a fine mesoporous zeolitic structure with a high surface area and small pore diameter. The synthesised adsorbent achieved a maximum methylene blue adsorption capacity of 230.4 mg/g.
This research offers a way to create strong, multifunctional materials from industrial waste like lead sludge. Such materials could be valuable for both construction applications requiring high mechanical resistance and for environmental solutions, specifically in removing pollutants from water.
This early-stage research presents a multifunctional geopolymeric material with high mechanical resistance and efficient dye adsorption. It could be applied in wastewater treatment for removing cationic dyes, or potentially in construction where strong, adsorptive materials are beneficial. The abstract describes material synthesis and characterisation, indicating it is not yet ready for direct market application.
AI-generated from the published abstract. Always read the original work before citing.
This study created green multifunctional geopolymeric sorbent material with strong cationic dye adsorption capacity and superior mechanical strength to broaden lead sludge (LS)-based geopolymer applications. In this study, two geopolymeric sorbents (Go and G) were fabricated using slag blended with 0 and 50 wt.% LS, respectively and activated with 6 wt.% NaOH. The Go and G specimens were normally cured for up to 28 days, while G specimens were hydrothermally cured at different steam-pressures to modify/improve histological characteristics as well as mechanical resistance. The selected sorbents were characterized via XRD, FTIR, TGA/DTG, XPS, N2-adsorption/desorption and SEM/EDX techniques. G/5bar's high strength and adsorption capacity may be due to the production of CSH, CAH, CASH, and NASH, which formed a fine mesoporous zeolitic structure with the highest BET-surface area (64.55m2/g) and lowest BJH-maximum pore diameter (9.68nm). The maximum MB adsorption capacity of the synthesized adsorbent was 230.4 mg/g.
This page summarises published work. The authoritative version sits with the publisher.
DOI: 10.1016/j.dibe.2024.100460
Is something wrong with this record? Report it or request removal.
Discussion
Have you built on this work, tried to replicate it, or seen it applied in practice? Share what you know. Verified researchers and MARATTO™ domain experts can open a discussion, and any member can reply. Contributions are reviewed before they appear.
No discussion yet. Open the first thread.
New to MARATTO™? Create a free account.
