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A Review on N-Doped Biochar for Oxidative Degradation of Organic Contaminants in Wastewater by Persulfate Activation

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  • Yaxuan Gao

    (Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Joint International Research Laboratory of Biomass Energy and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
    These authors contributed equally to this work.)

  • Wenran Gao

    (Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Joint International Research Laboratory of Biomass Energy and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
    These authors contributed equally to this work.)

  • Haonan Zhu

    (Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Joint International Research Laboratory of Biomass Energy and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Haoran Chen

    (Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Joint International Research Laboratory of Biomass Energy and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Shanshan Yan

    (Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Joint International Research Laboratory of Biomass Energy and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Ming Zhao

    (Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Joint International Research Laboratory of Biomass Energy and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China)

  • Hongqi Sun

    (School of Engineering, Edith Cowan University, Joondalup, WA 6027, Australia)

  • Junjie Zhang

    (State Key Laboratory of Organic Electronics and Information Displays, Institute of Advanced Materials, School of Material Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China)

  • Shu Zhang

    (Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Joint International Research Laboratory of Biomass Energy and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China)

Abstract

The Persulfate-based advanced oxidation process is the most efficient and commonly used technology to remove organic contaminants in wastewater. Due to the large surface area, unique electronic properties, abundant N functional groups, cost-effectiveness, and environmental friendliness, N-doped biochars (NBCs) are widely used as catalysts for persulfate activation. This review focuses on the NBC for oxidative degradation of organics-contaminated wastewater. Firstly, the preparation and modification methods of NBCs were reviewed. Then the catalytic performance of NBCs and modified NBCs on the oxidation degradation of organic contaminants were discussed with an emphasis on the degradation mechanism. We further summarized the detection technologies of activation mechanisms and the structures of NBCs affecting the PS activation, followed by the specific role of the N configuration of the NBC on its catalytic capacity. Finally, several challenges in the treatment of organics-contaminated wastewater by a persulfate-based advanced oxidation process were put forward and the recommendations for future research were proposed for further understanding of the advanced oxidation process activated by the NBC.

Suggested Citation

  • Yaxuan Gao & Wenran Gao & Haonan Zhu & Haoran Chen & Shanshan Yan & Ming Zhao & Hongqi Sun & Junjie Zhang & Shu Zhang, 2022. "A Review on N-Doped Biochar for Oxidative Degradation of Organic Contaminants in Wastewater by Persulfate Activation," IJERPH, MDPI, vol. 19(22), pages 1-25, November.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:22:p:14805-:d:968849
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    References listed on IDEAS

    as
    1. Zacharias Frontistis, 2018. "Degradation of the Nonsteroidal Anti-Inflammatory Drug Piroxicam by Iron Activated Persulfate: The Role of Water Matrix and Ultrasound Synergy," IJERPH, MDPI, vol. 15(11), pages 1-16, November.
    2. Jian Xu & Xueliang Zhang & Cheng Sun & Huan He & Yuxuan Dai & Shaogui Yang & Yusuo Lin & Xinhua Zhan & Qun Li & Yan Zhou, 2018. "Catalytic Degradation of Diatrizoate by Persulfate Activation with Peanut Shell Biochar-Supported Nano Zero-Valent Iron in Aqueous Solution," IJERPH, MDPI, vol. 15(9), pages 1-18, September.
    3. Yan Ma & Zhenhai Liu & Yanqiu Xu & Shengkun Zhou & Yi Wu & Jin Wang & Zhanbin Huang & Yi Shi, 2018. "Remediating Potentially Toxic Metal and Organic Co-Contamination of Soil by Combining In Situ Solidification/Stabilization and Chemical Oxidation: Efficacy, Mechanism, and Evaluation," IJERPH, MDPI, vol. 15(11), pages 1-19, November.
    4. Jiankun Zhang & Huifang Zhang & Lei Chen & Xiulei Fan & Yangyang Yang, 2022. "Optimization of PNP Degradation by UV-Activated Granular Activated Carbon Supported Nano-Zero-Valent-Iron-Cobalt Activated Persulfate by Response Surface Method," IJERPH, MDPI, vol. 19(13), pages 1-13, July.
    5. Wei Wei & Chenggong Jin & Ying Han & Zhenhui Huang & Tong Niu & Jinkai Li, 2022. "The Coordinated Development and Regulation Research on Public Health, Ecological Environment and Economic Development: Evidence from the Yellow River Basin of China," IJERPH, MDPI, vol. 19(11), pages 1-23, June.
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