ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO<sub>2</sub> Capture

This paper examines the synthesis of the ZnO/carbon spheres composites using resorcinol—formaldehyde resin as a carbon source and zinc nitrate as a zinc oxide source in a solvothermal reactor heated with microwaves. The influence of activation with potassium oxalate and modification with zinc nitrat...

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Autores principales:	Iwona Pełech, Daniel Sibera, Piotr Staciwa, Ewelina Kusiak-Nejman, Joanna Kapica-Kozar, Agnieszka Wanag, Urszula Narkiewicz, Antoni W. Morawski
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	carbon spheres carbon dioxide adsorption microwave reactor zinc oxide Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/295f67ce78cd49d5b2df8fa555146878
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spelling	oai:doaj.org-article:295f67ce78cd49d5b2df8fa5551468782021-11-11T18:02:57ZZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO<sub>2</sub> Capture10.3390/ma142164781996-1944https://doaj.org/article/295f67ce78cd49d5b2df8fa5551468782021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6478https://doaj.org/toc/1996-1944This paper examines the synthesis of the ZnO/carbon spheres composites using resorcinol—formaldehyde resin as a carbon source and zinc nitrate as a zinc oxide source in a solvothermal reactor heated with microwaves. The influence of activation with potassium oxalate and modification with zinc nitrate on the physicochemical properties of the obtained materials and CO<sub>2</sub> adsorption capacity was investigated. It was found that in the case of nonactivated material as well as activated materials, the presence of zinc oxide in the carbon matrix had no effect or slightly increased the values of CO<sub>2</sub> adsorption capacity. Only for the material where the weight ratio of carbon:zinc was 2:1, the decrease of CO<sub>2</sub> adsorption capacity was reported. Additionally, CO<sub>2</sub> adsorption experiments on nonactivated carbon spheres and those activated with potassium oxalate with different amounts of zinc nitrate were carried out at 40 °C using thermobalance. The highest CO<sub>2</sub> adsorption capacity at temperature 40 °C (2.08 mmol/g adsorbent) was achieved for the material after activation with potassium oxalate with the highest zinc nitrate content as ZnO precursor. Moreover, repeated adsorption/desorption cycle experiments revealed that the as-prepared carbon spheres were very good CO<sub>2</sub> adsorbents, exhibiting excellent cyclic stability with a performance decay of less than 10% over up to 25 adsorption-desorption cycles.Iwona PełechDaniel SiberaPiotr StaciwaEwelina Kusiak-NejmanJoanna Kapica-KozarAgnieszka WanagUrszula NarkiewiczAntoni W. MorawskiMDPI AGarticlecarbon spherescarbon dioxide adsorptionmicrowave reactorzinc oxideTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6478, p 6478 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbon spheres carbon dioxide adsorption microwave reactor zinc oxide Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	carbon spheres carbon dioxide adsorption microwave reactor zinc oxide Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Iwona Pełech Daniel Sibera Piotr Staciwa Ewelina Kusiak-Nejman Joanna Kapica-Kozar Agnieszka Wanag Urszula Narkiewicz Antoni W. Morawski ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO<sub>2</sub> Capture
description	This paper examines the synthesis of the ZnO/carbon spheres composites using resorcinol—formaldehyde resin as a carbon source and zinc nitrate as a zinc oxide source in a solvothermal reactor heated with microwaves. The influence of activation with potassium oxalate and modification with zinc nitrate on the physicochemical properties of the obtained materials and CO<sub>2</sub> adsorption capacity was investigated. It was found that in the case of nonactivated material as well as activated materials, the presence of zinc oxide in the carbon matrix had no effect or slightly increased the values of CO<sub>2</sub> adsorption capacity. Only for the material where the weight ratio of carbon:zinc was 2:1, the decrease of CO<sub>2</sub> adsorption capacity was reported. Additionally, CO<sub>2</sub> adsorption experiments on nonactivated carbon spheres and those activated with potassium oxalate with different amounts of zinc nitrate were carried out at 40 °C using thermobalance. The highest CO<sub>2</sub> adsorption capacity at temperature 40 °C (2.08 mmol/g adsorbent) was achieved for the material after activation with potassium oxalate with the highest zinc nitrate content as ZnO precursor. Moreover, repeated adsorption/desorption cycle experiments revealed that the as-prepared carbon spheres were very good CO<sub>2</sub> adsorbents, exhibiting excellent cyclic stability with a performance decay of less than 10% over up to 25 adsorption-desorption cycles.
format	article
author	Iwona Pełech Daniel Sibera Piotr Staciwa Ewelina Kusiak-Nejman Joanna Kapica-Kozar Agnieszka Wanag Urszula Narkiewicz Antoni W. Morawski
author_facet	Iwona Pełech Daniel Sibera Piotr Staciwa Ewelina Kusiak-Nejman Joanna Kapica-Kozar Agnieszka Wanag Urszula Narkiewicz Antoni W. Morawski
author_sort	Iwona Pełech
title	ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO<sub>2</sub> Capture
title_short	ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO<sub>2</sub> Capture
title_full	ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO<sub>2</sub> Capture
title_fullStr	ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO<sub>2</sub> Capture
title_full_unstemmed	ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO<sub>2</sub> Capture
title_sort	zno/carbon spheres with excellent regenerability for post-combustion co<sub>2</sub> capture
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/295f67ce78cd49d5b2df8fa555146878
work_keys_str_mv	AT iwonapełech znocarbonsphereswithexcellentregenerabilityforpostcombustioncosub2subcapture AT danielsibera znocarbonsphereswithexcellentregenerabilityforpostcombustioncosub2subcapture AT piotrstaciwa znocarbonsphereswithexcellentregenerabilityforpostcombustioncosub2subcapture AT ewelinakusiaknejman znocarbonsphereswithexcellentregenerabilityforpostcombustioncosub2subcapture AT joannakapicakozar znocarbonsphereswithexcellentregenerabilityforpostcombustioncosub2subcapture AT agnieszkawanag znocarbonsphereswithexcellentregenerabilityforpostcombustioncosub2subcapture AT urszulanarkiewicz znocarbonsphereswithexcellentregenerabilityforpostcombustioncosub2subcapture AT antoniwmorawski znocarbonsphereswithexcellentregenerabilityforpostcombustioncosub2subcapture
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ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO<sub>2</sub> Capture

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