IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v15y2023i9p7706-d1141943.html
   My bibliography  Save this article

Promotion Mechanism of Atrazine Removal from Soil Microbial Fuel Cells by Semiconductor Minerals

Author

Listed:
  • Muyuan Tang

    (School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Yilun Sun

    (School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Xian Cao

    (School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Xiaoyi Jiang

    (School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Xintong Gao

    (School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Xianning Li

    (School of Energy and Environment, Southeast University, Nanjing 210096, China)

Abstract

In recent years, soil microbial fuel cells (Soil-MFCs) have attracted attention due to their simultaneous electricity production and contaminant removal functions, but soil electron transfer resistance limits their contaminant removal effectiveness. To overcome the above-mentioned drawbacks, in this study, a dual-chamber Soil-MFC was constructed using atrazine (ATR) as the target contaminant, and the electrochemical performance of Soil-MFC and ATR removal were enhanced by semiconductor mineral addition. Analysis of atrazine was performed in soil using HPLC and GC-MS, and analysis of metallic minerals using XPS. Anodic microorganisms were determined using high-throughput sequencing technology. The results showed that the addition of Fe 3 O 4 increased the maximum output voltage of the device by 2.56 times, and the degradation efficiency of atrazine in the soil to 63.35%, while the addition of MnO 2 increased the internal resistance of the device and affected the current output, and these changes were closely related to the ion dissolution rate of the semiconductor minerals. In addition, the addition of both minerals significantly increased the relative abundance of both Proteobacteria and Bacteroidota, and Fe 3 O 4 simultaneously promoted the significant enrichment of Firmicutes, indicating that the semiconductor minerals significantly enhanced the enrichment of electroactive microorganisms near the anode. The structural equation modeling indicated that the semiconductor minerals achieved efficient degradation of ATR in the soil through a synergistic mechanism of metal ion leaching and microbial community structure changes. The detection of ATR and its degradation products in soil revealed that the degradation of ATR mainly included: (1) hydrolysis of atrazine by microorganisms to generate dehydroxylated atrazine (HYA); (2) reduced to diethyl atrazine (DEA) and diisopropyl atrazine (DIA) by extracellular electron reduction and re-dechlorination and hydrolysis to HYA. Semiconductor minerals make an important contribution to promoting microbial activity and extracellular electron reduction processes. The results of this study strengthen the power production and ATR removal efficiency of the Soil-MFC system and provide important theoretical support for the on-site removal of organic pollutants and the sustainable application of converting biomass energy into electricity.

Suggested Citation

  • Muyuan Tang & Yilun Sun & Xian Cao & Xiaoyi Jiang & Xintong Gao & Xianning Li, 2023. "Promotion Mechanism of Atrazine Removal from Soil Microbial Fuel Cells by Semiconductor Minerals," Sustainability, MDPI, vol. 15(9), pages 1-13, May.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:9:p:7706-:d:1141943
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/15/9/7706/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/15/9/7706/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Zhao, Bo & Zheng, Pengfei & Yang, Yuyi & Sha, Hao & Cao, Shengxian & Wang, Gong & Zhang, Yanhui, 2022. "Enhanced anaerobic digestion under medium temperature conditions: Augmentation effect of magnetic field and composites formed by titanium dioxide on the foamed nickel," Energy, Elsevier, vol. 257(C).
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Sha, Hao & Wang, Qing & Dong, Zheng & Cao, Shengxian & Zhao, Bo & Wang, Gong & Duan, Jie, 2024. "NaOH-urea pretreatment enhanced H2 and CH4 yields via optimizing mixed alkali ratio, pretreatment time, and organic loading rate during anaerobic digestion of corn stover," Energy, Elsevier, vol. 288(C).
    2. Sha, Hao & Cao, Shengxian & Zhao, Bo & Dong, Zheng & Wang, Gong & Duan, Jie, 2024. "Effect of alkaline deep eutectic solvents pretreatment on CH4 yield from anaerobic digestion of corn stover," Energy, Elsevier, vol. 302(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:15:y:2023:i:9:p:7706-:d:1141943. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.