Synthesis, characterization, CO2 mineralization in air, and thermal decomposition of nano- C8H10MgO10·4H2O powder

Effective solutions for efficient carbon dioxide (CO2) capture in air at room temperature are high demand due to the major impacts CO2 has on global climatic changes. Solid adsorbents materials received great attention over past years, among them, magnesium-based sorbents have been identified as a promising solution intermediate temperatures. This study reports first time (1) synthesis of monoclinic magnesium malate tetrahydrate by combining electrospinning and aging processes, (2) its adsorption mineralization air. Commercial hydroxide (Mg(OH)2) powder was used raw material carbonate hydrates (MCH), three processes; direct calcination, (3) electrospinning, (at incubate mineralization). The synthesized samples were characterized thoroughly using XRD, SEM, EDS, TGA analyses. Effects calcination temperature/aging temperature), crystallization, MCH studied. Interestingly, results showed that 6-month aged (via third process above), recorded capacity 15.5 wt% within 90 min 30 °C. Subsequently, novel mechanisms thermal decomposition adsorption/mineralization proposed, theoretical upper limit saving potentials estimated, i.e., 8 mol per 1 MgO. work provides approach effective practical emission management which holds potential carbon-based fuels development.