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Understanding the Adsorption Capacity for CO2 in Reduced Graphene Oxide (rGO) and Modified Ones with Different Heteroatoms in Relation to Surface and Textural Characteristics
Article

CO2 Capture by Reduced Graphene Oxide Monoliths with Incorporated CeO2 Grafted with Functionalized Polymer Brushes

1
POLYMAT, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Etorbidea 72, 20018 Donostia-San Sebastián, Spain
2
BioPren Group, Inorganic Chemistry and Chemical Engineering Department, Faculty of Sciences, University of Cordoba, 14014 Cordoba, Spain
3
Inorganic Chemistry, Crystallography and Mineralogy Department, University of Malaga, 29071 Malaga, Spain
4
Ikerbasque, The Basque Foundation for Science, Maria Diaz de Haro 3, 48013 Bilbao, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Antonio Di Bartolomeo
Appl. Sci. 2021, 11(23), 11154; https://doi.org/10.3390/app112311154
Received: 21 October 2021 / Revised: 10 November 2021 / Accepted: 20 November 2021 / Published: 24 November 2021
The monolithic materials of reduced graphene oxide (rGO) can be used successfully in CO2 adsorption. Here, the incorporation of CeO2 particles with and without polymer brushes grafted from the particles showed that the structural properties could be changed, affecting the adsorption of CO2. Polymer brushes of (1) poly(acrylic acid) (PAA), (2) poly(vinyl caprolactam) (PVCL) and (3) poly[(2-(methacryloyloxy)ethyl) trimethylammonium chloride] (PMETAC) were grafted from CeO2 via reversible addition−fragmentation chain transfer (RAFT) polymerization. The preparation of monoliths of rGO with different modified CeO2 particles led to different thermal properties (TGA), structural changes (BET isotherms) and CO2 adsorption. The responsive character of the CeO2@polymer was proven by the DLS and UV results. The responsive character of the particles incorporated into the rGO monolith affected not only the adsorption capacity but also the microstructure and values of the surface volume of the pores of the monolith. Monoliths with porosity values for better adsorption were affected by the responsive character of the polymer. View Full-Text
Keywords: reduced graphene oxide; monolith; polymer brushes; cerium oxide; RAFT polymerization; CO2 adsorption; poly(acrylic acid); poly[(2-(methacryloyloxy)ethyl) trimethylammonium chloride]; responsiveness reduced graphene oxide; monolith; polymer brushes; cerium oxide; RAFT polymerization; CO2 adsorption; poly(acrylic acid); poly[(2-(methacryloyloxy)ethyl) trimethylammonium chloride]; responsiveness
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MDPI and ACS Style

Politakos, N.; Serrano Cantador, L.; Cecilia, J.A.; Barbarin, I.; Tomovska, R. CO2 Capture by Reduced Graphene Oxide Monoliths with Incorporated CeO2 Grafted with Functionalized Polymer Brushes. Appl. Sci. 2021, 11, 11154. https://doi.org/10.3390/app112311154

AMA Style

Politakos N, Serrano Cantador L, Cecilia JA, Barbarin I, Tomovska R. CO2 Capture by Reduced Graphene Oxide Monoliths with Incorporated CeO2 Grafted with Functionalized Polymer Brushes. Applied Sciences. 2021; 11(23):11154. https://doi.org/10.3390/app112311154

Chicago/Turabian Style

Politakos, Nikolaos, Luis Serrano Cantador, Juan A. Cecilia, Iranzu Barbarin, and Radmila Tomovska. 2021. "CO2 Capture by Reduced Graphene Oxide Monoliths with Incorporated CeO2 Grafted with Functionalized Polymer Brushes" Applied Sciences 11, no. 23: 11154. https://doi.org/10.3390/app112311154

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