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Volume 30
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10.3390/molecules30234549
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Review

Progress in the Application of Iron-Based Plant Derived Biochar Catalyst for Fenton-like Remediation of Organic Wastewater: A Review

by
Xiao Wang
1,
Dongqing Zhang
2,
Yan Cheng
1,
Binkui Wu
1 and
Lanyi Sun
1,*
1
State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
2
School of Economics, Zhejiang Gongshang University, Hangzhou 310018, China
*
Author to whom correspondence should be addressed.
Molecules 2025, 30(23), 4549; https://doi.org/10.3390/molecules30234549
Submission received: 15 October 2025 / Revised: 12 November 2025 / Accepted: 18 November 2025 / Published: 25 November 2025
Versions Notes

Abstract

This paper focuses on the research progress of iron-based plant-derived biochar in the field of Fenton-like organic wastewater treatment. Given the severe organic pollution problems in water bodies, advanced oxidation technologies have garnered significant attention. In Fenton-like reactions, iron-based catalysts play a crucial role but have limitations, while the characteristics of biochar make it an ideal carrier. This paper provides a detailed account of the preparation methods for iron-based plant-derived biochar, including one-step pyrolysis and co-precipitation methods, each with its own advantages and disadvantages. It introduces the application of iron-based plant-derived biochar in Fenton-like reactions, including single-metal, multi-metal, and composite material forms, and explains the activation mechanisms involving radical and non-radical pathways. Finally, it summarizes the advantages of this material and points out the need for further research in areas such as cost assessment, metal leaching, practical water body application, and intermediate product toxicity assessment, providing comprehensive references and directional guidance for future studies.
Keywords: fenton-like; iron-based; plant derived biochar; environment remediation; advanced oxidation process fenton-like; iron-based; plant derived biochar; environment remediation; advanced oxidation process

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MDPI and ACS Style

Wang, X.; Zhang, D.; Cheng, Y.; Wu, B.; Sun, L. Progress in the Application of Iron-Based Plant Derived Biochar Catalyst for Fenton-like Remediation of Organic Wastewater: A Review. Molecules 2025, 30, 4549. https://doi.org/10.3390/molecules30234549

AMA Style

Wang X, Zhang D, Cheng Y, Wu B, Sun L. Progress in the Application of Iron-Based Plant Derived Biochar Catalyst for Fenton-like Remediation of Organic Wastewater: A Review. Molecules. 2025; 30(23):4549. https://doi.org/10.3390/molecules30234549

Chicago/Turabian Style

Wang, Xiao, Dongqing Zhang, Yan Cheng, Binkui Wu, and Lanyi Sun. 2025. "Progress in the Application of Iron-Based Plant Derived Biochar Catalyst for Fenton-like Remediation of Organic Wastewater: A Review" Molecules 30, no. 23: 4549. https://doi.org/10.3390/molecules30234549

APA Style

Wang, X., Zhang, D., Cheng, Y., Wu, B., & Sun, L. (2025). Progress in the Application of Iron-Based Plant Derived Biochar Catalyst for Fenton-like Remediation of Organic Wastewater: A Review. Molecules, 30(23), 4549. https://doi.org/10.3390/molecules30234549

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