2011/01/01 by Nichola J. Coleman · 1 citation
Environmental Science · Materials Science · Chemistry · #Adsorption and biosorption for pollutant removal #Arsenic contamination and mitigation #Clay minerals and soil interactions #Tobermorite #Glass recycling #Ion exchange #Chemical engineering #Calcium oxide #Raw material #Sorption #Calcium hydroxide #Materials science #Chemistry #Aqueous solution #Waste management #Mineralogy #Adsorption #Ion #Metallurgy #Cement #Organic chemistry
paper · doi:10.1504/ijewm.2011.042642
openalex publication_date 2011/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2025/11/06
Waste container glass cullet has been evaluated as a feedstock material for the hydrothermal synthesis of tobermorite, a cation exchanger. Accordingly, it is demonstrated that essentially phase-pure 11 Å tobermorite, Ca 5 Si 6 O 16 (OH) 2 · 4H 2 O, can be obtained from a stoicheiometrically-adjusted mixture of waste glass cullet and calcium oxide in aqueous sodium hydroxide at 100ºC. A batch sorption study indicated that the cullet-derived tobermorite is highly effective in the removal of Pb 2+ (1.66 mmol g –1 ) and Cd 2+ (0.48 mmol g –1 ) from solution. Its ion exchange characteristics are compared with those of other waste-derived sorbents and potential applications are discussed.