Buckwheat hull-derived biochar immobilized in alginate beads for the adsorptive removal of cobalt from aqueous solutions

Kim, Bolam; Jang, Jiseon; Lee, Dong Hoon

doi:10.1016/j.jhazmat.2022.129245

Cited by 22 publications

(5 citation statements)

References 68 publications

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“…However, the active surface area was fixed as much as 12.99 times smaller, i.e., 4.11 ± 0.3 m 2 g -1 . The obtained results were very different from the results published by other authors: active surface area of biochar from date palm biomass 249 m 2 g -1 (Elnour et al 2019), pecan branch biochar -248 m 2 g -1 (Liu et al 2023), buckwheat husk biochar -39-43 m 2 g -1 (Lim et al 2022), walnut shall biochar -150,3-45,4 m 2 g -1 , sunflower seed husk biochar -303.7 m 2 g -1 (Han et al 2022), pecan shells biochar -311.66 m 2 g -1 (Liu et al 2023) jujube pit biochar -246.9 m 2 g -1 (Chun et al 2021). This confirms the complexity of biochar production and the differences between researchers who emphasize various factors and their importance for the internal structure of biochar.…”

Section: Effect Of the Thermochemical Conversion Processcontrasting

confidence: 93%

Effect of thermochemical treatment on the physicochemical properties of fiber hemp (Cannabis sativa L.) by-product

Žiūra,

Zvicevičius,

Černiauskienė

et al. 2023

BioRes

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The growing demand for biomass is forcing attention toward alternative resources, including agricultural by-products such as fiber hemp (Cannabis sativa L.). Growing hemp for seed produces about 10 tons of dry matter by-products per hectare. Processing-conversion technologies used in practice change the properties of primary raw materials, give them higher added value, and prepare them for various needs. In addition to economic benefits, biochar contributes to carbon sequestration and increases the sustainability of agricultural production. This study evaluated the effect of thermochemical treatment in an oxygen-free environment on some physicochemical properties of the fiber hemp by-products of the Felina 32 variety. At a heating temperature of 700 °C, the biomass yield of biochar from stems was 28.4 ± 0.5% and from seed husks was 30.6 ± 0.6%. At that time, the carbon concentration in fiber hemp stems biochar increased 1.82 times, from 45.0 ± 2.26% to 81.9 ± 8.46%, and in seed husk biochar by 1.20 times, from 56.5 ± 11, 6% to 67.9 ± 7.47%. Furthermore, the changes in the fractional composition, density, calorific value, ash content, and ash melting characteristics that occurred during the conversion of primary raw material of fiber hemp into biochar were evaluated.

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Section: Effect Of the Thermochemical Conversion Processcontrasting

confidence: 93%

Effect of thermochemical treatment on the physicochemical properties of fiber hemp (Cannabis sativa L.) by-product

Žiūra,

Zvicevičius,

Černiauskienė

et al. 2023

BioRes

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“…Figure 3a shows the breakthrough curves for various bed depths (0.16, 0.44, 0.70 mm). As the bed depth increases from 0.16 to 0.70 mm, the breakthrough curves move from left to right, and the slope of the breakthrough curve (Lim et al, 2022) becomes slower, indicating that breakthrough time and saturation time were increased (Jang and Lee, 2016). It is because that an increase in bed depth corresponded to an increase in the amount of adsorbent, meaning more adsorption binding sites for TCS removal and longer breakthrough and saturation time.…”

Section: Continuous Xed-bed Column Studiesmentioning

confidence: 99%

“…The Thomas model constants (k TH ) are 2.200, 0.915, 0.217 mL/(mg•min), and the adsorption capacity (q e ) are 124.95, 269.15, 478.59 mg/g as the initial TCS concentration increases. The reason for it is that a higher TCS concentration can cause a decrease in the resistance of mass transport(Lim et al, 2022) between TCS and sorbent.…”

mentioning

confidence: 99%

Effective triclosan removal by using porous aromatic frameworks in continuous fixed-bed column studies

Li,

Gong,

Yang

et al. 2023

Environ Sci Pollut Res

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“…It has been found that chronic exposure to high concentrations of cobalt can lead to respiratory system diseases, dermatitis, and cardiovascular complications in humans. Consequently, the urgent problems of separating and recycling cobalt must be promptly addressed in waste power battery management. − …”

Section: Introductionmentioning

confidence: 99%

In Situ Synthesis of NH₂-MIL-53-Al/PAN Nanofibers for Removal Co(II) through an Electrospinning Process

Peng,

Pan,

Chen

et al. 2024

Langmuir

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In this study, researchers developed a novel composite material called NH 2 -MIL-53-Al/PAN, which consists of metal−organic frameworks (MOFs) grown on electrospun PAN nanofibers (NFs). The successful formation of the composite was confirmed by X-ray diffraction (XRD) and Fourier transform infrared (FTIR), and the hydrophilicity of NH 2 -MIL-53-Al/PAN was demonstrated by the water contact angle (WCA). Batch experiments were conducted to investigate the adsorption performance of Co(II) under different conditions. The maximum adsorption capacity reached 58.72 mg/g, and almost 95% of the adsorption was achieved within the first 6 h. The adsorption process was found to be spontaneous and endothermic and followed the pseudo-second-order kinetics and Langmuir models. Chemisorption and molecular layer adsorption are the main mechanisms of adsorption, and X-ray photoelectron spectroscopy (XPS) analysis further reveals that the interaction between the adsorbent and cobalt is a coordination interaction. In this study, NH 2 -MIL-53-Al was grown in situ on PAN to ensure effective loading of MOFs and prevent agglomeration during the NF mixing process. This approach successfully addressed the challenge of exposing active sites within the embedded MOF crystals. Additionally, it overcame the difficulty of recycling traditional MOF adsorbents. As a result, the exceptional performance of MOF NFs offers a promising solution for the efficient removal of cobalt-containing wastewater.

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Buckwheat hull-derived biochar immobilized in alginate beads for the adsorptive removal of cobalt from aqueous solutions

Cited by 22 publications

References 68 publications

Effect of thermochemical treatment on the physicochemical properties of fiber hemp (Cannabis sativa L.) by-product

Effect of thermochemical treatment on the physicochemical properties of fiber hemp (Cannabis sativa L.) by-product

Effective triclosan removal by using porous aromatic frameworks in continuous fixed-bed column studies

In Situ Synthesis of NH₂-MIL-53-Al/PAN Nanofibers for Removal Co(II) through an Electrospinning Process

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Buckwheat hull-derived biochar immobilized in alginate beads for the adsorptive removal of cobalt from aqueous solutions

Cited by 22 publications

References 68 publications

Effect of thermochemical treatment on the physicochemical properties of fiber hemp (Cannabis sativa L.) by-product

Effect of thermochemical treatment on the physicochemical properties of fiber hemp (Cannabis sativa L.) by-product

Effective triclosan removal by using porous aromatic frameworks in continuous fixed-bed column studies

In Situ Synthesis of NH2-MIL-53-Al/PAN Nanofibers for Removal Co(II) through an Electrospinning Process

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Product

Resources

About

In Situ Synthesis of NH₂-MIL-53-Al/PAN Nanofibers for Removal Co(II) through an Electrospinning Process