Synthesis of porous carbon matrix with inlaid Fe3C/Fe3O4 micro-particles as an effective electromagnetic wave absorber from natural wood shavings

Lou, Zhichao; Yuan, Chenglong; Zhang, Yao; Li, Yanjun; Cai, Jianguo; Yang, Lintian; Wang, Weikai; He, Hongliang; Zou, Jing

doi:10.1016/j.jallcom.2018.10.213

Cited by 129 publications

(39 citation statements)

References 28 publications

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“…The spectra of Fe 2p with double satellite signals was resolved by deconvolution and Gaussian curve fitting. The binding energies at ∼708.0 and ∼722.0 eV were the characteristic doublet from Fe 2p 3/2 and Fe 2p 1/2 core-level electrons, indicating the formation of Fe 3 C in the samples [24]. This was in accordance with the results of XRD.…”

Section: Characterizationsupporting

confidence: 87%

Synthesis of Porous Fe/C Bio-Char Adsorbent for Rhodamine B from Waste Wood: Characterization, Kinetics and Thermodynamics

et al. 2019

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In the past decades, dyes waste waters produced from industries have become a major source of environmental pollution causing the destruction of aquatic communities in the ecosystem and greatly threatened human health. Herein, a novel magnetic adsorbent was synthesized by carbonizing iron (III) 2,4-pentanedionate (Fe(acac)3) pre-enriched forestry waste wood at a pyrolysis temperature of 1000 °C. The characterization of the adsorbent conducted via SEM, EDS, VSM, XRD, XPS, and FT-IR spectroscopy. The adsorption trend followed the pseudo-second order kinetics model. The corresponding adsorption performance was efficient with an equilibrium time of only 1 min. Affect factors on the adsorption performance, such as adsorbent dosage, contact time and temperature, were investigated. The magnetic bio-char showed a high adsorption capacity and an efficient adsorption toward RhB, implying great potential application in the treatment of colored wastewaters.

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Section: Characterizationsupporting

confidence: 87%

Synthesis of Porous Fe/C Bio-Char Adsorbent for Rhodamine B from Waste Wood: Characterization, Kinetics and Thermodynamics

et al. 2019

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“…9d, it can obviously be observed that when the sample thickness is just 1.5 mm, its minimum reection loss value and EAB value can reach À34 dB and 5 GHz, respectively, indicating that the composite can achieve high absorption efficiency and wide EAB under a small thickness, which is very benecial for further applications. [63][64][65] The above results illustrate that the as-synthesized CF@CoFe 2 O 4 @MnO 2 composite exhibits superior microwave absorption performance both in absorbing efficiency and EAB width with a low thickness. The mechanism sketch illustration of microwave absorption for the CF@CoFe 2 O 4 @MnO 2 composite is shown in Fig.…”

Section: Resultsmentioning

confidence: 64%

Synthesis of a hierarchical carbon fiber@cobalt ferrite@manganese dioxide composite and its application as a microwave absorber

et al. 2020

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“…Furthermore, it is easy to collect, recycle, and reuse the adsorbents that adsorb pollutants under the action of external magnetic field, which is attributed to the magnetic phases in the adsorbent composites. Unfortunately, large-scale, low-cost, and simple production of porous carbon-based magnetic adsorbents is still a challenge [13,14]. Fabrication of such carbon-based composites always involves templates, complex surface functionalization or couple agents, and a large number of pre-prepared magnetic particles which are easy to agglomerate during the composition processes.…”

Section: Introductionmentioning

confidence: 99%

A Novel Phenolic Foam-Derived Magnetic Carbon Foam Treated as Adsorbent for Rhodamine B: Characterization and Adsorption Kinetics

Zhang

Wang

et al. 2020

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In recent decades, dye wastewaters produced by dye-manufacturing and dye-consuming industries have become a growing water pollution problem. Herein, a novel phenolic foam-derived magnetic carbon foam is synthesized by in-situ pyrolysis of iron acetylacetonate (Fe(acac)3) containing phenolic resin and its corresponding application as an adsorbent for the removal of Rhodamine B from effluent is investigated. The characterization of the as-prepared adsorbent is carried out by SEM, EDS, XRD, XPS, VSM, FT-IR, Raman, and BET. The magnetic carbon foam is observed to consist of a CFe15.1/C matrix modified with α-Fe/Fe3C/Fe2O3 composites, possessing a 3D porous architecture formed by inter-connected cells with diameters of 50–200 μm and narrow ligaments with thicknesses of ~20 μm. Experimental tests demonstrate that the equilibrium of adsorption behavior of Rhodamine B onto the obtained adsorbent can be reached within 40 min and the corresponding maximum adsorption capacity is 258.03 mg/g. The effects of contact time and adsorbent dosage on the adsorption performance are investigated. Besides, four models are introduced to fit the experimental data to evaluate the adsorption kinetics. The overall rate constant is determined by the chemisorption process, according to the pseudo-second order adsorption kinetics mechanism. Besides, the pH effect on RhB adsorption onto magnetic carbon foam is investigated, with the pH values varying from 3 to 10. The above results prove the application prospect of magnetic carbon foam prepared in this work in dye wastewater treatment.

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Synthesis of porous carbon matrix with inlaid Fe3C/Fe3O4 micro-particles as an effective electromagnetic wave absorber from natural wood shavings

Cited by 129 publications

References 28 publications

Synthesis of Porous Fe/C Bio-Char Adsorbent for Rhodamine B from Waste Wood: Characterization, Kinetics and Thermodynamics

Synthesis of Porous Fe/C Bio-Char Adsorbent for Rhodamine B from Waste Wood: Characterization, Kinetics and Thermodynamics

Synthesis of a hierarchical carbon fiber@cobalt ferrite@manganese dioxide composite and its application as a microwave absorber

A Novel Phenolic Foam-Derived Magnetic Carbon Foam Treated as Adsorbent for Rhodamine B: Characterization and Adsorption Kinetics

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