Carbon-Based Synthesized Materials for CO2 Adsorption and Conversion: Its Potential for Carbon Recycling

During the last half-century, the CO2 concentration in the world's atmosphere has increased from 310 p.p.m. to over 380 p.p.m. This is due to the widespread usage of fossil fuels as a main source of energy. Modeling forecasts have shown that this trend will continue to rise and reducing CO2 emissions is a challenging task for multi-stakeholders, including research institutions. The UN Climate Change Conference in Glasgow (COP26) has stressed that stakeholders need to work together to achieve a NetZero target. Technologies involving absorbents for the capture of CO2 from a gas mixture are energy-intensive. Carbon adsorption and conversion (CAC) approaches have been gaining attention recently since these technologies can mitigate CO2 emissions. In this review, materials ranging from advanced carbon-based materials to natural resources-based materials will be reviewed. Adsorption and conversion capacities as well as the scalability possibility of these technologies for solving the CO2 emission problem will be investigated. The review, therefore, is timely and meaningful concerning the net zero emission targets set by countries and developmental organizations worldwide.

Automated summary

Over the past 50 years, the CO2 concentration in the atmosphere has increased significantly due to the extensive use of fossil fuels. Predictions indicate that this upward trend will continue, making the reduction of CO2 emissions a challenging task for various stakeholders. The UN Climate Change Conference in Glasgow emphasizes the need for collaborative efforts to achieve NetZero goals. This review focuses on carbon adsorption and conversion technologies, which have gained attention for their potential to mitigate CO2 emissions and presents a timely and meaningful analysis of materials and scalability.