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Updated: Jul 25, 2025

Author Spotlight: Standardizing the Development of Amine-Based Silica Composites as CO2 Adsorbents for Direct Air Capture
Published on: September 29, 2023
Carbon dioxide separation and capture by adsorption: a review
Mohsen Karimi1,2,3, Mohammad Shirzad1,2,3, José A C Silva3
1Laboratory of Separation and Reaction Engineering (LSRE), Associate Laboratory LSRE/LCM, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
Advanced adsorption technologies are crucial for reducing carbon dioxide emissions from human activities. This review covers materials, techniques, and emerging processes for effective carbon capture.
Area of Science:
- Environmental Science
- Chemical Engineering
- Materials Science
Background:
- Anthropogenic activities significantly contribute to climate change, necessitating urgent emission reduction strategies.
- Carbon dioxide (CO2) emissions are a primary driver of global warming.
- Advanced capture technologies are essential for mitigating climate change impacts.
Purpose of the Study:
- To provide a comprehensive review of adsorption technologies for carbon dioxide capture.
- To highlight key advancements in materials, techniques, and processes for CO2 capture.
- To discuss emerging trends and challenges in the field, including additive manufacturing and direct air capture.
Main Methods:
- Literature review focusing on adsorption technologies for CO2 capture.
- Analysis of materials, techniques, and processes relevant to carbon capture.
- Exploration of enabling technologies such as additive manufacturing and machine learning.
- Consideration of life cycle assessment, commercialization, and scale-up strategies.
Main Results:
- Adsorption remains a leading technology for CO2 capture, with ongoing material innovations.
- Additive manufacturing offers new possibilities for optimizing adsorbent structures and reactor design.
- Direct air capture (DAC) technologies are gaining traction for removing historical CO2 emissions.
- Machine learning accelerates the discovery and optimization of novel CO2 sorbent materials.
Conclusions:
- Adsorption technologies, enhanced by innovative materials and processes, are vital for CO2 emission reduction.
- Integrating additive manufacturing and machine learning can significantly improve capture efficiency and cost-effectiveness.
- Scaling up direct air capture and commercializing advanced adsorption systems are critical next steps for climate change mitigation.
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