Truly reversible capture of CO2 by montmorillonite intercalated with soya oil-derived polyglycerols

- CO2 adsorbents are obtained with polyglycerol dendrimers derived from soybean oil.
- CO2 adsorbs reversibly on montmorillonite intercalated with polyglycerol dendrimers.
- The OH groups of the organic moiety behave as the main adsorption sites for CO2.
- CO2 adsorbs via weak acid-base interactions with the OH groups.