Carbon Capture Efficiency of Mechanically Activated Australian Halloysite-Rich Kaolin with Varying Iron Impurities and Its Potential Reuse for Removing Dyes from Water DOI Open Access
Siavash Davoodi, Bhabananda Biswas, Ravi Naidu

и другие.

Minerals, Год журнала: 2025, Номер 15(4), С. 399 - 399

Опубликована: Апрель 10, 2025

Sustainable strategies are required to mitigate elevated atmospheric CO2 levels. Achieving that by adsorption, especially using clay-based adsorbents, drew attention. These even more promising when these adsorbents obtained low-cost modifications. This study evaluates the effect of ball milling on carbon capture performance Australian halloysite nanotube (HNT)-rich kaolin samples: one without iron impurities (Hal) and other with (HalFe). The was mainly nested within illite/mica minerals in HalFe. Samples were ball-milled for 30 60 min, their sorption assessed at various pressures temperatures. Crystallography, electronic microscopy, surface area charge characterization revealed reduced length increased width tubular structure following milling, leading higher specific compromising crystallinity. Hal 14% 20 bar 15 °C after min a ~300% rise near-atmospheric pressures. Conversely, negatively affected HalFe, likely due iron/illite-mica-related damage during milling. infrared, thermographic analyses physisorption as primary mechanism. Since direct disposal CO2-laden materials is against sustainability principles, tested methylene blue removal from aqueous solutions, achieving ~83% ~91% (HalFe) efficiencies. highlights HNTs-rich clays’ valorization potential utilization (CCU).

Язык: Английский

Carbon Capture Efficiency of Mechanically Activated Australian Halloysite-Rich Kaolin with Varying Iron Impurities and Its Potential Reuse for Removing Dyes from Water DOI Open Access
Siavash Davoodi, Bhabananda Biswas, Ravi Naidu

и другие.

Minerals, Год журнала: 2025, Номер 15(4), С. 399 - 399

Опубликована: Апрель 10, 2025

Sustainable strategies are required to mitigate elevated atmospheric CO2 levels. Achieving that by adsorption, especially using clay-based adsorbents, drew attention. These even more promising when these adsorbents obtained low-cost modifications. This study evaluates the effect of ball milling on carbon capture performance Australian halloysite nanotube (HNT)-rich kaolin samples: one without iron impurities (Hal) and other with (HalFe). The was mainly nested within illite/mica minerals in HalFe. Samples were ball-milled for 30 60 min, their sorption assessed at various pressures temperatures. Crystallography, electronic microscopy, surface area charge characterization revealed reduced length increased width tubular structure following milling, leading higher specific compromising crystallinity. Hal 14% 20 bar 15 °C after min a ~300% rise near-atmospheric pressures. Conversely, negatively affected HalFe, likely due iron/illite-mica-related damage during milling. infrared, thermographic analyses physisorption as primary mechanism. Since direct disposal CO2-laden materials is against sustainability principles, tested methylene blue removal from aqueous solutions, achieving ~83% ~91% (HalFe) efficiencies. highlights HNTs-rich clays’ valorization potential utilization (CCU).

Язык: Английский

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