2013/07/17 by Johan Forsgren, Sara Frykstrand, Kathryn Grandfield +2 · 5 citations
Chemistry · Environmental Science · Materials Science · #Adsorption and biosorption for pollutant removal #Aerogels and thermal insulation #Calcium Carbonate Crystallization and Inhibition
paper · pdf · doi:10.1371/journal.pone.0068486
openalex publication_date 2013/07/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/02
We report the template-free, low-temperature synthesis of a stable, amorphous, and anhydrous magnesium carbonate nanostructure with pore sizes below 6 nm and a specific surface area of ∼ 800 m(2) g(-1), substantially surpassing the surface area of all previously described alkali earth metal carbonates. The moisture sorption of the novel nanostructure is featured by a unique set of properties including an adsorption capacity ∼50% larger than that of the hygroscopic zeolite-Y at low relative humidities and with the ability to retain more than 75% of the adsorbed water when the humidity is decreased from 95% to 5% at room temperature. These properties can be regenerated by heat treatment at temperatures below 100°C.The structure is foreseen to become useful in applications such as humidity control, as industrial adsorbents and filters, in drug delivery and catalysis.