Adsorbents with sustainable CO<sub>2</sub> capture capacity prepared from carboxymethylcellulose

Wu, Qiong; Li, Wei; Lian, Dai; Wu, Yanjiao

doi:10.1557/jmr.2014.164

Cited by 5 publications

(1 citation statement)

References 32 publications

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“…The results show that CSs possessed the largest specific surface area of the samples of 462 m 2 g −1 with developed micropores. In CSs, S micro accounted for 85.5% of the total surface area; this is desirable because narrower pores can enhance the interaction between CO 2 molecules and an adsorbent [36]. This explanation can also be further confirmed by figure 8(b), which reveals that the ultramicropore (<0.9 nm) of CSs was the most developed of the samples.…”

Section: Resultsmentioning

confidence: 52%

Preparation and application performance study of biomass-based carbon materials with various morphologies by a hydrothermal/soft template method

Wu¹,

Gao²,

Zhang³

et al. 2019

Nanotechnology

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Nitrogen-doped carbon materials with controllable morphologies were prepared via a soft template method using chitosan as the carbon and nitrogen source and F127 or ionic liquid as the template. The performance of the materials as electrodes and adsorbents for carbon dioxide removal were evaluated. Carbon spheres (CSs) with developed micropore structures were obtained without a template, whereas a tubular structure (CSF) containing mesopores with long-range order was obtained using F127. Layered carbon (CSI) containing micro-/mesopores with short- and long-range order was obtained using an ionic liquid. The samples exhibited graphite-like structure and the soft template increased the graphitization degree. Nitrogen existed mainly in the form of pyridine and pyridone groups in CSs and CSF and as pyridine, pyridone, and quaternary groups in CSI. The specific capacitances of CSs, CSF, and CSI were 144, 161, and 178 F g−1, respectively, at a current density of 1.0 A g−1 in 1 M sulfuric acid. The carbon dioxide adsorption capacities of CSs, CSF, and CSI were 142, 73, and 115 mg g−1, respectively; CSs displayed the highest value because of its developed micro- and ultramicroporous structure. Our results indicated that these carbon materials with various morphologies can be used as both electrodes and adsorbents.

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Section: Resultsmentioning

confidence: 52%

Preparation and application performance study of biomass-based carbon materials with various morphologies by a hydrothermal/soft template method

Wu¹,

Gao²,

Zhang³

et al. 2019

Nanotechnology

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Nitrogen doped activated carbon derived from chitosan/hexamethylenetetramine: structural and CO2 adsorption properties

2022

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Chitosan and chitosan/ hexamethylenetetramine (HMT) macrospheres were prepared respectively by dropping chitosan and chitosan/HMT (in wt/wt ratios of 1:1 and 1:3) solutions in aq. NaOH solution.Here, HMT served as an additional nitrogen precursor for in-situ N-doping with chitosan derived activated carbon (AC). The as-formed macrospheres were impregnated using ZnCl 2 , freeze-dried, and carbonized at 500°C under inert atmosphere to yield ACs of average size 2.6 mm. All the samples were characterized using SEM, EDS, CHNS Analyzer, TGA, FT-IR, Raman, XRD and BET surface area analyzer. All the samples showed mesoporous characteristics. The surface area of the AC without HMT, with 1:1 HMT, and 1:3 HMT were 391.502, 259.017, and 111.717 m 2 /g respectively. Similarly, the pore volumes of AC without HMT, with 1:1 HMT and 1:3 HMT were 0.138, 0.095 and 0.075 cc/g respectively. The chitosan/HMT derived AC possessed higher N-content and better thermal stability, however exhibited lower surface properties with increasing HMT content. Deterioration in adsorption capacity of chitosan/HMT derived AC may be attributed to the physical cross-linking of chitosan polymer chains induced by increase in pH with addition of HMT and also the intermolecular H-bonding interaction between HMT and chitosan, which in turn reduces the surface area of as-formed N-doped ACs progressively.

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Hydrothermal synthesis of magnetic mesoporous carbon microspheres from carboxymethylcellulose and nickel acetate

Tan

et al. 2015

Applied Surface Science

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Adsorbents with sustainable CO₂ capture capacity prepared from carboxymethylcellulose

Abstract: Abstract

Cited by 5 publications

References 32 publications

Preparation and application performance study of biomass-based carbon materials with various morphologies by a hydrothermal/soft template method

Preparation and application performance study of biomass-based carbon materials with various morphologies by a hydrothermal/soft template method

Nitrogen doped activated carbon derived from chitosan/hexamethylenetetramine: structural and CO2 adsorption properties

Hydrothermal synthesis of magnetic mesoporous carbon microspheres from carboxymethylcellulose and nickel acetate

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Adsorbents with sustainable CO2 capture capacity prepared from carboxymethylcellulose

Abstract: Abstract

Cited by 5 publications

References 32 publications

Preparation and application performance study of biomass-based carbon materials with various morphologies by a hydrothermal/soft template method

Preparation and application performance study of biomass-based carbon materials with various morphologies by a hydrothermal/soft template method

Nitrogen doped activated carbon derived from chitosan/hexamethylenetetramine: structural and CO2 adsorption properties

Hydrothermal synthesis of magnetic mesoporous carbon microspheres from carboxymethylcellulose and nickel acetate

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Adsorbents with sustainable CO₂ capture capacity prepared from carboxymethylcellulose