Adsorption and immobilization performance of pine-cone pristine and engineered biochars for antimony in aqueous solution and military shooting range soil: An integrated novel approach

Khan, Basit Ahmed; Ahmad, Muzamil; Iqbal, Sajid; Ullah, Fath; Bolan, Nanthi; Solaiman, Zakaria; Shafique, Munib Ahmed; Siddique, Kadambot H.M.

doi:10.1016/j.envpol.2022.120723

Cited by 23 publications

(4 citation statements)

References 67 publications

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“…At this point, the Langmuir model has a better fit with an R 2 of 0.985, which is more suitable for describing the isothermal adsorption process of Sb(III). And the immobilized Microcystis aeruginosa microspheres adsorbed Sb(III) in solution predominantly as a monomolecular layer [39], with a maximum adsorption of 13.45 mg/g (dry weight).…”

Section: Adsorption Kinetics Characteristicsmentioning

confidence: 99%

Adsorption of Sb(III) from Solution by Immobilized Microcystis aeruginosa Microspheres Loaded with Magnetic Nano-Fe3O4

Zhou,

Jiao,

Zou

et al. 2024

Water

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In this study, a renewable and reusable immobilized Microcystis aeruginosa microsphere loaded with magnetic Nano-Fe3O4 composite adsorbent material is designed to study the treatment of wastewater containing heavy metal Sb(III). Through static absorption experiments combined with various characterization methods, this article studies the absorption process and mechanism of Sb(III), and investigates the optimal preparation conditions and environmental influencing factors. The results show that the optimal preparation conditions for immobilized Microcystis aeruginosa microspheres loaded with magnetic Nano-Fe3O4 adsorbent materials are 50.0% mass fraction of Microcystis suspension, 1.5% mass fraction of Nano-Fe3O4, and 2.5% mass fraction of sodium alginate. When the pH of the solution is 4, the reaction temperature is 25 °C, and the adsorbent dosage is 8.5 g/L, the removal rate of Sb(III) is the highest, reaching 83.62% within 120 min. The adsorption process conforms to the pseudo-second order kinetic model and Langmuir adsorption isotherm model, mainly characterized by chemical adsorption and surface complexation. Therefore, the composite material has been proven to be an efficient Sb (III) adsorption material.

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Section: Adsorption Kinetics Characteristicsmentioning

confidence: 99%

Adsorption of Sb(III) from Solution by Immobilized Microcystis aeruginosa Microspheres Loaded with Magnetic Nano-Fe3O4

Zhou,

Jiao,

Zou

et al. 2024

Water

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“…C 1s splitting peaks (Figure 4b) for fresh material at 286.22, 284.73, and 283.72 eV were assigned as C=C, C-O-, and C=O bonds, whereas these peaks of used material shifted to 286.55, 284.91, and 283.92 eV, respectively. 47,48 O 1s peaks (Figure 4c) of fresh material at 532.01, 530.80, and 529.59 eV were indexed to oxygen vacancies (defects), adsorbed oxygen, and lattice oxygen, respectively. These split peaks of the used sample moved to 531.99, 530.76, and 529.75 eV, respectively.…”

Section: Adsorption-photocatalytic Experimentsmentioning

confidence: 99%

Efficient adsorption‐photocatalysis activity of ternary ZnO‐Sm₂O₃‐MgO co‐modified biochar for dye removal

Zhou,

Wen,

Dong

et al. 2024

Applied Organom Chemis

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To boost the adsorption‐photocatalytic performances of biochar in wastewater treatment, biochar was modified with ternary metal oxides ZnO, Sm2O3, and MgO (ZnSm/Mg‐biochar) via the one‐step pyrolysis method. The optimal 2b‐ZnSm/Mg‐biochar with a Zn/Sm molar ratio of 1:1 exhibited the better removal activity of RhB in comparison with biochar, 2‐Mg/biochar, and b‐ZnSm/biochar. The removal efficiency and adsorption capacity of 2b‐ZnSm/Mg‐biochar was 99.46% and 979.22 mg g−1 for RhB solution of 410 mg g−1, respectively. The adsorption kinetics and isotherms of ZnSm/Mg‐biochar composites were as described by second‐order and Langmuir models, respectively. The abundant vacant sites at the junction interface of ZnO, Sm2O3, MgO, and biochar were favorable for the adsorption and photon capturing, achieving the efficient photo‐conversion of RhB under the stimulated solar‐light irradiation.

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“…On the other hand, the amendments of FeCl 2 and CaCO 3 led to a reduction of over 80% in the concentrations of Sb in the soil porewater. In their study, Khan et al (2023) conducted the preparation of biochar derived from pine-one waste, followed by the enrichment of biochar with Fe and Al salts to create engineered biochar. The results indicated that all three biochars effectively immobilized Sb (V) within the soil range.…”

Section: Solidification/stabilizationmentioning

confidence: 99%

Contamination and remediation of contaminated firing ranges—an overview

Zhu,

Che,

et al. 2024

Front. Environ. Sci.

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Land and groundwater resources are fundamental pillars of sustainable human development. The negligent abandonment of ammunition and its fragments during range activities can result in severe contamination of range sites, thereby posing a significant risk to both the ecological environment and human health. Nevertheless, numerous uncertainties persist regarding the comprehension of range contaminated sites. In this study, the literature on the range of contaminated sites decommissioned after 2000 was systematically examined to consolidate basic information related to these sites, such as contaminant types, contamination status, and remediation measures. Considerable attention is devoted to investigating the advancement of diverse techniques, such as phytoremediation, chemical leaching, and solidification/stabilization, to remediate polluted areas within decommissioned firing ranges. Among the various types of remediation means, physical remediation and chemical remediation have higher remediation efficiency, but generally have higher costs and are prone to secondary pollution. Bioremediation is low cost and environmentally friendly, but has a long restoration cycle. The choice of remediation method should be based on actual needs. Additionally, this study puts forth prospective avenues for future research. Ultimately, this endeavor aims to attract the interest of scholars toward the remediation of contaminated sites within firing ranges, thereby making a valuable contribution to both human wellbeing and sustainable progress.

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Adsorption and immobilization performance of pine-cone pristine and engineered biochars for antimony in aqueous solution and military shooting range soil: An integrated novel approach

Cited by 23 publications

References 67 publications

Adsorption of Sb(III) from Solution by Immobilized Microcystis aeruginosa Microspheres Loaded with Magnetic Nano-Fe3O4

Adsorption of Sb(III) from Solution by Immobilized Microcystis aeruginosa Microspheres Loaded with Magnetic Nano-Fe3O4

Efficient adsorption‐photocatalysis activity of ternary ZnO‐Sm₂O₃‐MgO co‐modified biochar for dye removal

Contamination and remediation of contaminated firing ranges—an overview

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Adsorption and immobilization performance of pine-cone pristine and engineered biochars for antimony in aqueous solution and military shooting range soil: An integrated novel approach

Cited by 23 publications

References 67 publications

Adsorption of Sb(III) from Solution by Immobilized Microcystis aeruginosa Microspheres Loaded with Magnetic Nano-Fe3O4

Adsorption of Sb(III) from Solution by Immobilized Microcystis aeruginosa Microspheres Loaded with Magnetic Nano-Fe3O4

Efficient adsorption‐photocatalysis activity of ternary ZnO‐Sm2O3‐MgO co‐modified biochar for dye removal

Contamination and remediation of contaminated firing ranges—an overview

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Efficient adsorption‐photocatalysis activity of ternary ZnO‐Sm₂O₃‐MgO co‐modified biochar for dye removal