Bifeng Yang , Wu Yang , Jiaxing Du , Changhong Huang , Junzhe Yang , Ben Wang , Lushi Sun , Hong Zhang
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Recent progress of solid adsorbents on direct air capture of carbon dioxide
Direct air capture (DAC) has shown growing potential in addressing climate challenges, with solid adsorbents being extensively studied. This review firstly categorizes solid adsorbents into physical and chemical types based on adsorption principles, followed by systematic analyses of their CO2 capture mechanisms, performance metrics, regeneration advancements, and inherent limitations. Subsequently, the review emphasizes the superior applicability of solid amine-based adsorbents in DAC systems, and provides critical evaluations on how adsorbent composition and environmental factors influence their performance, highlighting the promising role of macromolecular amine functionalized three-dimensional mesoporous architectures. Finally, the current research status of DAC cycle technology is comprehensively summarized, and the key challenges impeding industrial implementation of DAC are identified. This review aims to provide strategic guidance for future DAC research directions.
期刊介绍:
The Journal of Environmental Chemical Engineering (JECE) serves as a platform for the dissemination of original and innovative research focusing on the advancement of environmentally-friendly, sustainable technologies. JECE emphasizes the transition towards a carbon-neutral circular economy and a self-sufficient bio-based economy. Topics covered include soil, water, wastewater, and air decontamination; pollution monitoring, prevention, and control; advanced analytics, sensors, impact and risk assessment methodologies in environmental chemical engineering; resource recovery (water, nutrients, materials, energy); industrial ecology; valorization of waste streams; waste management (including e-waste); climate-water-energy-food nexus; novel materials for environmental, chemical, and energy applications; sustainability and environmental safety; water digitalization, water data science, and machine learning; process integration and intensification; recent developments in green chemistry for synthesis, catalysis, and energy; and original research on contaminants of emerging concern, persistent chemicals, and priority substances, including microplastics, nanoplastics, nanomaterials, micropollutants, antimicrobial resistance genes, and emerging pathogens (viruses, bacteria, parasites) of environmental significance.