Dear Colleagues,

As increasing attention has been paid on global warming, CO₂ capture is vital to relieve environmental pressure and sustainable development. Currently, aqueous alkanolamine solutions are commonly used to capture CO₂, generating large amounts of organic waste and requiring huge energy input for regeneration. In light of this, developing porous materials has seen significant growth in recent years considering the tremendous energy savings. Some of the synthesized porous materials have been evaluated for CO₂ capture at the laboratory scale. However, to meet the future carbon neutrality target, a transition from current-phase to next-generation CO₂ capture materials with better CO₂ recognition performance, higher capacity, lower regeneration energy consumption, lower costs, and long-term cycling ability is inevitable. This transition will include not only the development, characterization, and modification of porous adsorbents, but also the development of pressure swing adsorption (PSA) CO₂ capture systems at the industry scale.

In this Special Issue, we are looking for contributions helping to:

• Understand the CO₂ capture mechanisms through in situ and simulation analysis;
• Determine the impact of structural properties on the CO₂ capture materials’ overall performance;
• Offer design principles of materials with high adsorption capacity and ideal adsorption selectivity for CO₂ capture;
• Develop CO₂ capture systems at the industry scale.

The topics of interest include but are not limited to:

• The design of CO₂ capture systems based on porous materials;
• Industry CO₂ technologies;
• Direct air capture technologies;
• Structure–activity relationship of CO₂ capture materials;
• CO₂ sorption modeling and simulation.

Dr. Yifan Gu
Dr. Zaoming Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Clean Technologies is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• CO₂ capture
• CO₂ storage
• metal-organic frameworks
• covalent-organic frameworks
• hydrogen-bonded organic frameworks
• zeolite and carbon materials
• other porous materials