A Comparative Study of CO2 Adsorption on amine Functionalized MCM-41 and Silicalite-1 Materials

Abstract

The primary cause of climate change is rising atmospheric carbon dioxide (CO2) levels, which has sparked a lot of research into carbon capture and storage (CCS) technology as a vital tactic for reducing greenhouse gas emissions. In this regard, the current work compares the CO2 adsorption capabilities of two different materials, silicalite-1 and MCM-41. These materials' distinct structural and chemical characteristics have attracted a lot of interest because of their possible use in CCS. In order to confirm the structural and functional properties of the amine-functionalized MCM-41 and Silicalite-1 materials, (XRD), (SEM), and (FTIR) were used in the experimental examination. The CO2 adsorption capabilities of both materials were then assessed in a range of settings, such as amine functionalization levels, pressure, and temperature. The study's findings provide important new information about how CO2 adsorbs on these materials. More specifically, better CO2 adsorption capability was demonstrated by the aminefunctionalized MCM-41 over Silicalite-1, especially at lower temperatures and higher pressures. It was also noted that amine functionalization improved CO2 adsorption; for both materials, more amine loading led to better adsorption performance. Additionally, a detailed examination of the adsorption kinetics and isotherms for both materials yields important details about how well-suited they are for use in real-world CCS systems. These results add to the expanding body of information regarding CO2 adsorption materials and provide insightful direction for the creation of effective and long-lasting carbon capture devices. In summary, this comparative study highlights the importance of material selection and functionalization levels in the search for efficient CCS solutions by illuminating the CO2 adsorption capacities of amine-functionalized MCM41 and Silicalite-1 materials. The trials were conducted at various pressures (0–15 bar) and temperatures (100°C). The quantity of CO2 adsorbed as a function of pressure was used to depict the adsorption isotherms. According to the experimental findings, temperature and pressure have a significant impact on the rate of CO2 adsorption on silicalite-1. It was discovered that MCM-41 and silicalite-1's CO2 adsorption capability increased with pressure and decreased with amine Functionalization