Carbon dioxide (CO2) is a potent heat-trapping gas emitted into the atmosphere through diverse sources such as fossil fuel combustion, deforestation, and volcanic activity. Human activities since the Industrial Revolution have led to a 50% increase in atmospheric CO2 levels, surpassing natural increments observed during the last ice age. CO2 capture and conversion is a vital research area aimed at mitigating climate change impacts resulting from escalating atmospheric CO2 levels. Excessive CO2 emissions from industrial processes and fossil fuel combustion have contributed to global warming and ecological deterioration. The focal point revolves around the efficient capture and transformation of CO2 into value-added commodities. CO2 capture encompasses the separation and containment of CO2 from emissions to prevent its release into the atmosphere. Various techniques, including absorption, adsorption, and membrane separation, are being investigated to optimize the capture process. Upon successful capture, CO2 can be converted into valuable products, such as synthetic fuels, polymers, and organic carbonates, via diverse pathways. Efficient CO2 capture and conversion technologies play a pivotal role in attaining sustainability objectives and facilitating the transition towards a low-carbon economy. Ongoing research aims to enhance capture efficiency, explore innovative conversion routes, and optimize catalysts and reaction conditions.
Several classes of porous materials and their hybrid composite materials have been studied for CO2 capture over the last decade. Particularly, zeolites, MOFs and microporous porous materials have shown several promising advantages over traditional chemisorbing materials for CO2 absorption, highlighting their recyclability, tunability, selectivity and lower toxicity. The recent focus lies in their application for both carbon capture and conversion into value-added chemicals through different catalytic reactions. To enhance the activity, metal catalysts can be integrated into the porous structure of the adsorbent material, requiring a thermal, photocatalytic or electrical input. Membranes, on the other hand, have been widely studied for CO2 separation from gas effluents, but they have also started to be studied for direct CO2 capture from air. All in all, the application of porous materials in the field of CO2 capture, separation and conversion is a research field full of promise that will play a key role in the mitigation of climate change impacts.
The primary focus of this Research Topic is to share cutting-edge advancements spanning from fundamental scientific discoveries to the creation of innovative processes and technologies, related to the development of new porous materials and membranes for CO2 capture, separation and conversion to value-added products. We welcome all types of original research articles, mini-reviews, reviews, and perspectives. Research areas may include, but are not limited to:
1. Synthesis and structural characteristics of porous materials, organic–inorganic hybrid materials, metal–organic frameworks (MOFs), covalent organic frameworks (COFs), zeolites, and carbon-based materials for CO2 storage, capture, and separation (CO2/N2, CO2/H2, direct air capture, etc.) applications.
2. Multifunctional nanoporous materials and hybrid metal catalysts for diverse catalytic transformations and value-added chemical synthesis from CO2, including electrocatalytic CO2 reduction, photocatalytic CO2 conversion, and CO2 fixation applications.
3. Experimental and computational studies of all types of organic–inorganic hybrid materials for CO2 remediation and advanced applications in environmental sustainability.
4. Porous membranes for CO2 separation from gas effluents as well as CO2 capture from air.
Topic Editors Sanjit Gaikwad, Vishwanath Hiremath and Dinesh Mullangi hold some licensed patents on the synthesis and application of porous materials for CO 2 capture and/or conversion. The other Topic Editors declare no conflicts of interest with regard to their Research Topic .
Keywords:
Adsorption, CO2 capture/conversion, MOF, Gas separation, Membranes, porous materials
Important Note:
All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.
Carbon dioxide (CO2) is a potent heat-trapping gas emitted into the atmosphere through diverse sources such as fossil fuel combustion, deforestation, and volcanic activity. Human activities since the Industrial Revolution have led to a 50% increase in atmospheric CO2 levels, surpassing natural increments observed during the last ice age. CO2 capture and conversion is a vital research area aimed at mitigating climate change impacts resulting from escalating atmospheric CO2 levels. Excessive CO2 emissions from industrial processes and fossil fuel combustion have contributed to global warming and ecological deterioration. The focal point revolves around the efficient capture and transformation of CO2 into value-added commodities. CO2 capture encompasses the separation and containment of CO2 from emissions to prevent its release into the atmosphere. Various techniques, including absorption, adsorption, and membrane separation, are being investigated to optimize the capture process. Upon successful capture, CO2 can be converted into valuable products, such as synthetic fuels, polymers, and organic carbonates, via diverse pathways. Efficient CO2 capture and conversion technologies play a pivotal role in attaining sustainability objectives and facilitating the transition towards a low-carbon economy. Ongoing research aims to enhance capture efficiency, explore innovative conversion routes, and optimize catalysts and reaction conditions.
Several classes of porous materials and their hybrid composite materials have been studied for CO2 capture over the last decade. Particularly, zeolites, MOFs and microporous porous materials have shown several promising advantages over traditional chemisorbing materials for CO2 absorption, highlighting their recyclability, tunability, selectivity and lower toxicity. The recent focus lies in their application for both carbon capture and conversion into value-added chemicals through different catalytic reactions. To enhance the activity, metal catalysts can be integrated into the porous structure of the adsorbent material, requiring a thermal, photocatalytic or electrical input. Membranes, on the other hand, have been widely studied for CO2 separation from gas effluents, but they have also started to be studied for direct CO2 capture from air. All in all, the application of porous materials in the field of CO2 capture, separation and conversion is a research field full of promise that will play a key role in the mitigation of climate change impacts.
The primary focus of this Research Topic is to share cutting-edge advancements spanning from fundamental scientific discoveries to the creation of innovative processes and technologies, related to the development of new porous materials and membranes for CO2 capture, separation and conversion to value-added products. We welcome all types of original research articles, mini-reviews, reviews, and perspectives. Research areas may include, but are not limited to:
1. Synthesis and structural characteristics of porous materials, organic–inorganic hybrid materials, metal–organic frameworks (MOFs), covalent organic frameworks (COFs), zeolites, and carbon-based materials for CO2 storage, capture, and separation (CO2/N2, CO2/H2, direct air capture, etc.) applications.
2. Multifunctional nanoporous materials and hybrid metal catalysts for diverse catalytic transformations and value-added chemical synthesis from CO2, including electrocatalytic CO2 reduction, photocatalytic CO2 conversion, and CO2 fixation applications.
3. Experimental and computational studies of all types of organic–inorganic hybrid materials for CO2 remediation and advanced applications in environmental sustainability.
4. Porous membranes for CO2 separation from gas effluents as well as CO2 capture from air.
Topic Editors Sanjit Gaikwad, Vishwanath Hiremath and Dinesh Mullangi hold some licensed patents on the synthesis and application of porous materials for CO 2 capture and/or conversion. The other Topic Editors declare no conflicts of interest with regard to their Research Topic .
Keywords:
Adsorption, CO2 capture/conversion, MOF, Gas separation, Membranes, porous materials
Important Note:
All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.