Facile synthesis of biochar/layered double oxides composite by one-step calcination for enhanced carbon dioxide (CO2) adsorption

Layered Double Hydroxide Coated by Carbon-Based Material for Environmental Dye Pollutant

“…The pristine biochar (CBC) XRD pattern exhibited a broad diffraction peak at the 2𝜃 values of 22 • , which was derived from the crystalline structure of cellulose that partially remained. Taher et al (2023) reported that the crystalline structure of cellulose has high thermal stability up to 300°C. In the higher temperature, its main peak broadened, indicating the collapse in crystallinity and aromatic structure formation.…”

Optimising the acid–base ratio of Mg–Al layered double oxides to enhance CO2 capture performance: the critical role of calcination conditions

“…7,8,12,13 Considerable efforts have been made to enhance the CO 2 adsorption capacity including the optimisation of adsorption conditions, the control of calcination parameters (temperature and time), the design of LDHs/LDOs synthesis methods, as well as the incorporation of alkaline metal doping or other hybrid materials. 12,[14][15][16][17] However, the influence of the calcination process, including the parameters such as ramp rate, temperature and calcination duration time, on the surface chemistry of the material and its subsequent effects on CO 2 capture through both chemisorption and physisorption has not been fully explored yet. Being able to optimise the calcination parameters for the LDHs materials and fundamentally understand their influence on the surface physiochemical properties holds the key to unlock the full potential of LDHs/LDOs as efficient CO 2 sorption materials.…”