Solar-driven catalytic platforms for closed-loop carbon cycling: CO₂ assisting biomass conversion

Area of Science:

• Chemical Engineering
• Materials Science
• Renewable Energy

Background:

• Biomass utilization is a key research area, but photothermal synergy mechanisms for CO2 coupling remain unclear.
• Sugar-based molecules are vital renewable resources with broad applications.
• Understanding these processes is crucial for sustainable chemical production.

Purpose of the Study:

• To systematically review high-value transformation pathways of biomass (especially sugars) coupled with CO2 using photothermal catalysis.
• To elucidate conversion mechanisms, selectivity regulation, and product evolution (solid, liquid, gas).
• To provide insights for closed-loop carbon cycles and low-carbon chemical industrial parks.

Main Methods:

• Systematic literature review of photothermal catalytic coupling of biomass and CO2.
• Comparative analysis of solid products to understand conversion mechanisms.
• Examination of intermediate product evolution and key species generation.
• Analysis of biomass resource characteristics and market potential.

Main Results:

• Detailed explanation of product transformation features (solid, liquid, gas) during photothermal catalysis.
• Thorough examination of biomass molecule conversion mechanisms and selectivity control.
• Insights into the evolution from intermediate products to key species.
• Assessment of market application potentials for different biomass resources.

Conclusions:

• Photothermal catalysis offers pathways for high-value biomass and CO2 conversion.
• This approach supports the transition from a linear to a circular economy.
• Findings provide theoretical and practical implications for developing low-carbon chemical industries and closed-loop carbon cycles.