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Efficient adsorption of crystal violet by different temperature pyrolyzed biochar-based sodium alginate microspheres: A green solution for food industry dye removal

Tang, Lu, Liu, Chunxiao, Liu, Xiaolin, Zhang, Liang, Fan, Bei, Wang, Bo, Wang, Fengzhong·2025·Food Chemistry: X
DOI 10.1016/j.fochx.2025.102311PMC PMC11910070
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Fig. 1 Yield (A), surface area (B), pore size (C), and FTIR spectra (D) of OB pyrolyzed at different temperatures.
Fig. 1 Yield (A), surface area (B), pore size (C), and FTIR spectra (D) of OB pyrolyzed at different temperatures.CC BY-NC · PubMed Central
Fig. 2 Adsorption efficiency of different composite microspheres under different CV concentration (A), different pH value (B), different time point (C), and different temperature (D).
Fig. 2 Adsorption efficiency of different composite microspheres under different CV concentration (A), different pH value (B), different time point (C), and different temperature (D).CC BY-NC · PubMed Central
Fig. 3 FTIR spectra (A), XRD diffractions (B), TG curves (C), and DTG curves (D)of different composite microspheres. a: SA; b: BS300; c: BS500; d: BS700; e: BS800; f: BS900.
Fig. 3 FTIR spectra (A), XRD diffractions (B), TG curves (C), and DTG curves (D)of different composite microspheres. a: SA; b: BS300; c: BS500; d: BS700; e: BS800; f: BS900.CC BY-NC · PubMed Central
Fig. 4 Optical images and SEM images of different composite microspheres.
Fig. 4 Optical images and SEM images of different composite microspheres.CC BY-NC · PubMed Central
Fig. 5 Adsorption kinetic model fitting of B800 (A), SA microsphere (B), and BS800 (C) to CV solution; Adsorption isotherms of BS800 to CV solution. D: Langmuir model; E: Freundlich model. F: ΔG value under 25 °C and 40 °C.
Fig. 5 Adsorption kinetic model fitting of B800 (A), SA microsphere (B), and BS800 (C) to CV solution; Adsorption isotherms of BS800 to CV solution. D: Langmuir model; E: Freundlich model. F: ΔG value under 25 °C and 40 °C.CC BY-NC · PubMed Central
Fig. 6 A: release rate of different composite microspheres under PBS solution. B: reusability of the prepared BS800.
Fig. 6 A: release rate of different composite microspheres under PBS solution. B: reusability of the prepared BS800.CC BY-NC · PubMed Central

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Research works printed but not linked: 36

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Cited by

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Metadata

Authors
Tang, L., Liu, C., Liu, X., Zhang, L., Fan, B., Wang, B., & Wang, F.
Venue
Food Chemistry: X
Publisher
Elsevier BV
Published
2025-02
Volume
26
Pages
102311
ISSN
2590-1575
DOI
10.1016/j.fochx.2025.102311
PMC
PMC11910070
Cited by
32
References
2
Language
en
Licence
Funders
  • Beijing University of Agriculture (QNKJ202101, QJKC2022012)
  • Key Technology Research and Development Program of Shandong (2024SFGC0401)

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