Removing Fluoride from Water by Nanostructured Magnesia-Impregnated Activated Carbon DOI Creative Commons
Chen Yang,

Chenliang Shen,

Nan Zhang

et al.

Colloids and Interfaces, Journal Year: 2025, Volume and Issue: 9(2), P. 22 - 22

Published: April 9, 2025

A facile method was employed to impregnate activated carbon, a commonly used water treatment medium, with nanostructured magnesium oxide for fluoride removal. Batch adsorption tests were conducted evaluate the performance of magnesia-impregnated carbon (nMgO@AC) The results demonstrated that this composite material exhibited good capacity, maximum equilibrium uptake approximately 121.1 mg/g fluoride. Kinetic studies revealed process followed pseudo-second-order kinetic model, reaching in about 100 min. Within initial pH range 3 11, efficiency nMgO@AC remained above 95%, indicating solution had minimal effect on material’s removal capability. mechanism elucidated by characterizing properties before and after using SEM, TEM, XRD XPS. Initially, reacted rapidly transformed into hydroxide. Subsequently, ligand exchange occurred between hydroxide groups ions aqueous solution, resulting effective findings study suggest holds significant potential fluoride-containing wastewater, particularly highly alkaline wastewater.

Language: Английский

Removing Fluoride from Water by Nanostructured Magnesia-Impregnated Activated Carbon DOI Creative Commons
Chen Yang,

Chenliang Shen,

Nan Zhang

et al.

Colloids and Interfaces, Journal Year: 2025, Volume and Issue: 9(2), P. 22 - 22

Published: April 9, 2025

A facile method was employed to impregnate activated carbon, a commonly used water treatment medium, with nanostructured magnesium oxide for fluoride removal. Batch adsorption tests were conducted evaluate the performance of magnesia-impregnated carbon (nMgO@AC) The results demonstrated that this composite material exhibited good capacity, maximum equilibrium uptake approximately 121.1 mg/g fluoride. Kinetic studies revealed process followed pseudo-second-order kinetic model, reaching in about 100 min. Within initial pH range 3 11, efficiency nMgO@AC remained above 95%, indicating solution had minimal effect on material’s removal capability. mechanism elucidated by characterizing properties before and after using SEM, TEM, XRD XPS. Initially, reacted rapidly transformed into hydroxide. Subsequently, ligand exchange occurred between hydroxide groups ions aqueous solution, resulting effective findings study suggest holds significant potential fluoride-containing wastewater, particularly highly alkaline wastewater.

Language: Английский

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