Rapid Adsorption of Cationic Methylene Blue Dye onto Volcanic Ash-metakaolin Based Geopolymers

Shikuku, Victor Odhiambo; Tomé, Sylvain; Hermann, Dzoujo T.; Tompsett, Geoffrey A.; Timko, Michaël T.

doi:10.1007/s12633-021-01637-9

Cited by 22 publications

(7 citation statements)

References 49 publications

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“…It was concluded that the developed materials demonstrated high porosity, excellent specific surface area and high removal efficiency, even after 10 regenerations [61]. The ability of geopolymer-based adsorbents to remove methylene blue from wastewater was also verified by Shikuku et al [62], Papa et al [63] and Novais et al [64]. In the course of various studies, geopolymer materials have also been defined as effective adsorbents of dyes such as methyl orange dye [65], reactive red 195 dye [66], Rhodamine B and Congo red [67].…”

Section: Potential Of Geopolymers In Water Purificationmentioning

confidence: 75%

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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Section: Potential Of Geopolymers In Water Purificationmentioning

confidence: 75%

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

Kudłacik-Kramarczyk,

Drabczyk,

Figiela

et al. 2023

Materials

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“…It is noteworthy that figure 2 shows the change in the removal efficiency %when using the dye effluents of reactive red 195 dye under the pH of the adsorption bath. In order to determine the optimum pH value of the metakaolin basedgeopolymer mix on the dye treated with metakaolin, it was determined conducted at different pH (2)(3)(4)(5)(6)(7)(8)(9)(10). The results from figure 2 show that the maximum removal efficiency % was at pH 3 and pH 2 for both geopolymer cements based on metakaolin MF1 and MC1, respectively.…”

Section: Factors Affecting On the Adsorption 321 Effect Of Phmentioning

confidence: 99%

“…The aluminosilicate source may come from the nature, such metakaolin and volcanic ash, or from industry, like fly ash (FA)and blast furnace slag (GGBFS) [2,3].Additionally, when compared to conventional Portland cement, geopolymers are more environmentally friendly cementitious materials because their manufacture requires lower temperatures, which leads to a reduced CO 2 emission [4,5] as well as their resistance properties to fire and acid attack [6][7][8]. Geopolymers have been used in a wide range of applications, such as thermal insulation, alternative binders to Portland cement in the construction industry, and sorbents [9]. This seems to be due to their porous structure, good compressive strength, high heat resistance, and cation exchange properties.…”

Section: Introductionmentioning

confidence: 99%

Decolorization of Reactive Dyes, Part V: Eco-Friendly Approach of Reactive Red 195 Dye Effluents Decolorization Using Geopolymer Cement Based on Metakaolin

2022

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Our strategy, which we developed a decade ago, aims to reduce pollution rates by treating the water generated from the dyeing process. Here we did the same study but using reactive dyes, by decolorizing red effluent 195 using two different types of geopolymer based on metakaolin. The factors affecting decolorization were studied such as the adsorbent dose, duration, different pH and finally the dose of dye used.

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“…However, the rapidity of the adsorption process increased with increase in MK fraction. 15 Tome et al 16 showed during the synthesis of laterite (LA)-rice husk ash (RHA) geopolymers that the addition of 5% RHA improved the porosity and densification of the functional groups and that the resulting eco-adsorbent had a Malachite Green adsorption capacity 5 times greater than laterite. Zhang et al 17 prepared geopolymer composites based on metakaolin and chitosan (CS) for crystal violet adsorption.…”

Section: Introductionmentioning

confidence: 99%

Synergistic co-adsorptive removal of crystal violet and chromium(vi) from water by pozzolan-charcoal based geopolymer composites

Mboka,

Tamaguelon,

Shikuku

et al. 2024

Mater. Adv.

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Rapid Adsorption of Cationic Methylene Blue Dye onto Volcanic Ash-metakaolin Based Geopolymers

Cited by 22 publications

References 49 publications

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

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

Decolorization of Reactive Dyes, Part V: Eco-Friendly Approach of Reactive Red 195 Dye Effluents Decolorization Using Geopolymer Cement Based on Metakaolin

Synergistic co-adsorptive removal of crystal violet and chromium(vi) from water by pozzolan-charcoal based geopolymer composites

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