Adsorption of flubendiamide(pesticide)onto chitosan-modified magnetic biochar in environmental remediation

Nguyen Hong-Hue Thi; Choi Yong-Ho; Jeong Yong-Hoon; Kim Jong-Guk; Kwak Dong-Heui

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Adsorption of flubendiamide(pesticide)onto chitosan-modified magnetic biochar in environmental remediation

Updated：2026-03-13

- Adsorption of flubendiamide(pesticide)onto chitosan-modified magnetic biochar in environmental remediation
- Adsorption of flubendiamide(pesticide)onto chitosan-modified magnetic biochar in environmental remediation
- 中国化学工程学报（英文） 2026年89卷第1期页码：93-101
- Affiliations：
  
  Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju 54896, Korea
  Innovative Research and Education Center for Integrated Bioactive Materials, Jeonju 54896, Korea
  Department of Bio-Convergence Science, Jeonbuk National University, Jeongeup 56212, Korea
  Division of Civil/Environmental/Mineral Resources and Energy Engineering (Department of Environmental Engineering), Jeonbuk National University, Jeonju 54896, Republic of Korea
- Author bio：
  
  Corresponding authors. These authors contributed equally as corresponding authors. E-mail addresses: kjongguk@jbnu.ac.kr(J.-G. Kim)
  kwak124@jbnu.ac.kr(D.-H. Kwak).
- Funds：
  
  research funds of Jeonbuk Na-tional University in 2024 and partly supported by the National Research Foundation of Korea(NRF-2019R1A2C1006441)
- DOI：
  中图分类号：
- 收稿：2025-04-06，
  
  修回：2025-09-02，
  
  录用：2025-09-03，
  
  网络首发：2025-09-26，
  
  纸质出版：2026-01
- Accepted：
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Nguyen Hong-Hue Thi, Choi Yong-Ho, Jeong Yong-Hoon, 等. Adsorption of flubendiamide(pesticide)onto chitosan-modified magnetic biochar in environmental remediation[J]. 中国化学工程学报（英文）, 2026,89(1):93-101.

Nguyen Hong-Hue Thi, Choi Yong-Ho, Jeong Yong-Hoon, et al. Adsorption of flubendiamide(pesticide)onto chitosan-modified magnetic biochar in environmental remediation[J]. Chinese Journal of Chemical Engineering, 2026, 89(1): 93-101.
Nguyen Hong-Hue Thi, Choi Yong-Ho, Jeong Yong-Hoon, 等. Adsorption of flubendiamide(pesticide)onto chitosan-modified magnetic biochar in environmental remediation[J]. 中国化学工程学报（英文）, 2026,89(1):93-101. DOI：

Nguyen Hong-Hue Thi, Choi Yong-Ho, Jeong Yong-Hoon, et al. Adsorption of flubendiamide(pesticide)onto chitosan-modified magnetic biochar in environmental remediation[J]. Chinese Journal of Chemical Engineering, 2026, 89(1): 93-101. DOI：

摘要

Abstract

Flubendiamide is a commonly used pesticide with low water solubility and a high organic carbon sorption constant

causing it to adhere to soil particles and negatively impact soil ecosystems. First

chili plant stems

typically discarded after the harvest season

represent an abundant local biomass resource with significant potential for utilization

and were converted into biochar through pyrolysis. Here

we describe the synthesis of biochar modified with iron and chitosan to increase the diversity of functions and surface functional groups of biochar. The resulting chitosan-modified magnetic biochar (CMBC) presents a full range of functional groups of chitosan and iron oxide as shown by Fourier-transform infrared spectroscopy. The correlation between flubendiamide concentration and the dose of biochar on adsorption was explored. The flubendiamide adsorption efficiency of CMBC (1% mass ratio of soil) reached 68.03% in 90 min. The highest adsorption capacity achieved was 0.95 mg·g

- 1

. The flubendiamide adsorption mechanism by CMBC can be described with a pseudo-second-order kinetic model. The experiment data closely fit a Freundlich isotherm model (

= 0.998)

and the low residual sum of squares values demonstrate the high model applicability. In this study

we present a comprehensive overview of pesticides

alongside kinetic and isotherm model studies of flubendiamide adsorption by CMBC. We emphasize the potential of modified biochar to enhance environmental remediation applications.

关键词

Keywords

references

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