Crystallized glass tailored by controlled heat treatment for carbon dioxide capture under mild conditions

Abstract

Described is the formation of crystallized alkaline earth oxide-containing glass adsorbents for radioactive carbon dioxide (¹⁴CO₂) sequestering and mineralization under mild operating conditions; thus enabling the long-term geological disposal of hazardous ¹⁴C. The best performing crystallized glass adsorbents recorded a max CO₂ capacity of 4.54 mmol g⁻¹ and a carbonation reaction rate of 8.04 mmol g⁻¹ h⁻¹.