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Preparation of mesoporous lignin-based aerogels for organic dyes removal

  • Yingying Zhang , Xianke Hu , Jie Yang , Ying Kang EMAIL logo , Jie Wei and Dawei Fang EMAIL logo
Published/Copyright: March 13, 2025
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International Journal of Chemical Reactor Engineering
From the journal International Journal of Chemical Reactor Engineering Volume 23 Issue 2

Abstract

The efficient use of biomass and the treatment of dye-contaminated wastewater are urgent issues. In this study, a novel mesoporous lignin-based composite aerogel (SL/CMX/AM) is synthesized via a chemical cross-linking/freeze-drying method, and its structure was characterized by SEM, FI-TR, and BET. The results showed that the structure of aerogel was mesoporous with dimensions ranging from 10 to 50 nm. The mesoporous lignin-based composite aerogels were further applied for the adsorption of dyes. The results revealed that the optimal purifying conditions were as follows: the pH of MB solution was 11, the mass of the aerogel was 0.0100 g, the concentration was 200 mg g−1, the adsorption time was 720 min, and the adsorption temperature was 313.15 K, producing the highest adsorption capacity of 39.80 mg g−1. The adsorption mechanism was discussed. The adsorption process followed the pseudo-second-order model and was fitted to the Langmuir isotherm model. The thermodynamic parameters indicated that the adsorption of dyes onto the investigated material was an endothermic and spontaneous reaction at 293.15–313.15 K. Overall, this work guides the preparation of mesoporous lignin-based composite aerogels and their potential application in addressing dye-contaminated wastewater problems.

Keywords: mesoporous lignin-based composite aerogels; dye-contaminated wastewater; synthesis mechanism; adsorption kinetic study; adsorption isotherms
Corresponding authors: Ying Kang and Dawei Fang, Institute of Rare and Scattered Elements, College of Chemistry, Liaoning University, Shenyang, 110036, P.R. China, E-mail: (Y. Kang), (D. Fang)

Funding source: Key Technologies R & D Program of Liaoning Provincial Department of Education

Award Identifier / Grant number: LJKZZ20220018

Funding source: Project of the Education Department of Liaoning Province

Award Identifier / Grant number: JYTMS20230771

Funding source: Liaoning Revitalization Talents Program

Award Identifier / Grant number: XLYC2202040

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 22403040, 22173039

  1. Research ethics: Not applicable.

  2. Informed consent: Informed consent was obtained from all individuals included in this study, or their legal guardians or wards.

  3. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Use of Large Language Models, AI and Machine Learning Tools: None declared.

  5. Conflict of interest: The authors state no conflict of interest.

  6. Research funding: This work was supported by the Project of the Education Department of Liaoning Province (JYTMS20230771); National Natural Science Foundation of China (22403040,22173039); Liaoning Revitalization Talents Program (XLYC2202040); and Key Technologies R & D Program of Liaoning Provincial Department of Education (LJKZZ20220018).

  7. Data availability: The raw data can be obtained on request from the corresponding author.

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Supplementary Material

This article contains supplementary material (https://doi.org/10.1515/ijcre-2024-0150).

Received: 2024-07-24
Accepted: 2025-02-22
Published Online: 2025-03-13

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/ijcre-2024-0150
Keywords for this article
mesoporous lignin-based composite aerogels; dye-contaminated wastewater; synthesis mechanism; adsorption kinetic study; adsorption isotherms

Articles in the same Issue

  1. Frontmatter
  2. Review
  3. A critical analysis on synthesis of nanofluids and factors affecting thermal conductivity of nanofluids for heat transfer applications: a review
  4. Articles
  5. Improving iron-bearing dust pellets performance through synergistic action of dual-component organic binders: cellulose and starch interactions
  6. Preparation of mesoporous lignin-based aerogels for organic dyes removal
  7. Power generation potential and assessment of producer gas quality from blended rubber shell and palm kernel shell in open core downdraft gasifier
  8. Bi2S3 loaded MXene Ti3C2T x nanosheet with an adsorption-photocatalytic synergistic removal for tetracycline
  9. Preparation of activated carbon from waste tea and its performance in adsorptive desulfurization of model fuel
  10. Study on friction pressure drop characteristics of gas flow through multi-size irregular high-purity magnesia bed layer
  11. Unlocking sustainable cooling: a numerical analysis of ice slurry flow in 180° U-bends-impacts of bend radius/pipe radius ratios and pressure drops on system performance
  12. DEM investigation on effect of internal pipe on active layer characterization in a drum
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