Polyethyleneimine-crosslinked cellulose aerogel for combustion CO2 capture

Wang, Cheng; Okubayashi, Satoko

doi:10.1016/j.carbpol.2019.115248

Cited by 69 publications

(22 citation statements)

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“…Moreover, CO 2 sorption sites, primarily amine groups, in amine-grafted sorbents are often gradually deactivated after the cyclic regeneration process, that is, thermal-driven desorption at higher temperature. − As a consequence, the maximum CO 2 capacity of TO-CNFs/PEI foam decreased 27% after five cycles of adsorption/desorption at 25 and 85 °C . 7% capacity loss after 10 cycles was also reported on PEI crosslinked cellulose triacetate aerogel when desorption was conducted at 105 °C . MOFs are generally thought as thermally stable with thermal decomposition temperatures higher than 300 °C .…”

Section: Results and Discussionmentioning

confidence: 97%

“… 62 7% capacity loss after 10 cycles was also reported on PEI crosslinked cellulose triacetate aerogel when desorption was conducted at 105 °C. 65 MOFs are generally thought as thermally stable with thermal decomposition temperatures higher than 300 °C. 66 To have a better understanding of the reversibility and thermal stability of CO 2 adsorption by the TO-wood/Cu 3 (BTC) 2 composite, cyclic CO 2 adsorption/desorption test was performed.…”

Section: Results and Discussionmentioning

confidence: 99%

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Strong Foam-like Composites from Highly Mesoporous Wood and Metal-Organic Frameworks for Efficient CO₂ Capture

Wang

Zhou

2021

ACS Appl. Mater. Interfaces

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Mechanical stability and multicycle durability are essential for emerging solid sorbents to maintain an efficient CO 2 adsorption capacity and reduce cost. In this work, a strong foam-like composite is developed as a CO 2 sorbent by the in situ growth of thermally stable and microporous metal-organic frameworks (MOFs) in a mesoporous cellulose template derived from balsa wood, which is delignified by using sodium chlorite and further functionalized by 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-mediated oxidation. The surface carboxyl groups in the TEMPO-oxidized wood template (TO-wood) facilitate the coordination of the cellulose network with multivalent metal ions and thus enable the nucleation and in situ growth of MOFs including copper benzene-1,3,5-tricarboxylate [Cu 3 (BTC) 2 ], zinc 2-methylimidazolate, and aluminum benzene-1,3,5-tricarboxylate. The TO-wood/Cu 3 (BTC) 2 composite shows a high specific surface area of 471 m 2 g –1 and a high CO 2 adsorption capacity of 1.46 mmol g –1 at 25 °C and atmospheric pressure. It also demonstrates high durability during the temperature swing cyclic CO 2 adsorption/desorption test. In addition, the TO-wood/Cu 3 (BTC) 2 composite is lightweight but exceptionally strong with a specific elastic modulus of 3034 kN m kg –1 and a specific yield strength of 68 kN m kg –1 under the compression test. The strong and durable TO-wood/MOF composites can potentially be used as a solid sorbent for CO 2 capture, and their application can possibly be extended to environmental remediation, gas separation and purification, insulation, and catalysis.

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Section: Results and Discussionmentioning

confidence: 97%

Section: Results and Discussionmentioning

confidence: 99%

Strong Foam-like Composites from Highly Mesoporous Wood and Metal-Organic Frameworks for Efficient CO₂ Capture

Wang

Zhou

2021

ACS Appl. Mater. Interfaces

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“…Generally, k 1 had a higher value than k 2 , which indicates a faster adsorption at the beginning. This behavior is typical for the adsorption of gases and gas mixtures, [ 24,39,40 ] since the material is initially not loaded with CO 2 and contains many free amine sites. It was also observed that the adsorption rate did not change over the time.…”

Section: Resultsmentioning

confidence: 99%

Fibrous Polyethyleneimine‐Functionalized Cellulose Materials for CO₂ Capture and Release

Vocht

Tomasic

Beyer

et al. 2022

Macro Materials & Eng

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Poly(ethyleneimine) (PEI) immobilized on support materials are valuable alternatives to aqueous amine solutions for carbon dioxide (CO 2 ) capture from the atmosphere since the thermal desorption of CO 2 from these materials usually requires less energy. Herein, fibrous PEI-functionalized carrier systems based on cellulose, cellulose tosylate (CT), and cellulose carbamate (CC) are described. Branched PEI is used for functionalization since higher CO 2 sorption capacities compared to linear PEIs can be achieved. Under wet conditions, a PEI-functionalized nonwoven material has a sorption capacity of 0.026 mg CO 2 /mg adsorbent; complete and reversible CO 2 desorption is accomplished at 80 °C. IntroductionCarbon dioxide (CO 2 ) is a climate-damaging exhaust gas. It can, however, also be used as a resource for plastics or renewable fuels, and thus potentially replace fossil natural gas and crude oil. Adsorption of CO 2 from air is currently under consideration for combating climate change in several respects: it can reduce the amount of the greenhouse gas in the atmosphere, make it usable for the chemical industry and thus enable a reduction in future emissions. Therefore, it is necessary to identify methods for reducing and using the CO 2 being produced and emitted into the

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“…PEI is a water-soluble polymer containing reactive groups (primary, secondary, and tertiary amines) that easily react with carboxyl and other functional groups. Moreover, it can electrostatically adsorb negatively charged pollutants and also form stable hydrogen bonds with cellulose and graphene, thus improving the adsorption and mechanical properties of composite aerogels [ 24 , 25 , 26 ]. Fang et al prepared polyethyleneimine-cellulose nanofiber aerogels for the adsorption of Congo red dyes [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Ultralight, Mechanically Enhanced, and Thermally Improved Graphene-Cellulose-Polyethyleneimine Aerogels for the Adsorption of Anionic and Cationic Dyes

Wang

Xie

et al. 2022

Nanomaterials

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Graphene-cellulose-polyethyleneimine aerogels (GA-MCC-PEI) were prepared using a simple, environmentally friendly method to remove anionic and cationic dyes in water. Graphene-cellulose hydrogels were prepared using a hydrothermal method and then immersed in a polyethyleneimine aqueous solution for 48 h to obtain graphene-cellulose-polyethyleneimine hydrogels, which were then freeze-dried. The light and porous composite aerogels had a good compression resistance, and the maximum allowable pressure of the graphene-cellulose-polyethyleneimine aerogel with a cellulose content of 43% was 21.76 kPa, which was 827 times its weight. Adsorption of the anionic dye amaranth and the cationic dye methylene blue by the graphene-cellulose-polyethyleneimine aerogel was satisfactorily modeled using the Langmuir isothermal equation, indicating monolayer adsorption. When the cellulose content was 39%, the equilibrium adsorption capacities of the composite aerogel for amaranth and methylene blue were 369.37 mg/g and 237.33 mg/g, respectively. This graphene-cellulose-polyethyleneimine aerogel can be used to remove dye pollutants in water to maintain ecological balance, thus broadening the application space of aerogel materials, that is, as adsorbents in different environments.

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Polyethyleneimine-crosslinked cellulose aerogel for combustion CO2 capture

Cited by 69 publications

References 50 publications

Strong Foam-like Composites from Highly Mesoporous Wood and Metal-Organic Frameworks for Efficient CO₂ Capture

Strong Foam-like Composites from Highly Mesoporous Wood and Metal-Organic Frameworks for Efficient CO₂ Capture

Fibrous Polyethyleneimine‐Functionalized Cellulose Materials for CO₂ Capture and Release

Ultralight, Mechanically Enhanced, and Thermally Improved Graphene-Cellulose-Polyethyleneimine Aerogels for the Adsorption of Anionic and Cationic Dyes

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Polyethyleneimine-crosslinked cellulose aerogel for combustion CO2 capture

Cited by 69 publications

References 50 publications

Strong Foam-like Composites from Highly Mesoporous Wood and Metal-Organic Frameworks for Efficient CO2 Capture

Strong Foam-like Composites from Highly Mesoporous Wood and Metal-Organic Frameworks for Efficient CO2 Capture

Fibrous Polyethyleneimine‐Functionalized Cellulose Materials for CO2 Capture and Release

Ultralight, Mechanically Enhanced, and Thermally Improved Graphene-Cellulose-Polyethyleneimine Aerogels for the Adsorption of Anionic and Cationic Dyes

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Product

Resources

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Strong Foam-like Composites from Highly Mesoporous Wood and Metal-Organic Frameworks for Efficient CO₂ Capture

Strong Foam-like Composites from Highly Mesoporous Wood and Metal-Organic Frameworks for Efficient CO₂ Capture

Fibrous Polyethyleneimine‐Functionalized Cellulose Materials for CO₂ Capture and Release