IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v251y2025ics096014812501119x.html
   My bibliography  Save this article

Boosting bioelectricity performance in sediment microbial fuel cells with raw bamboo biochar as a sustainable energy source

Author

Listed:
  • Mohd Noor, Nurfarhana Nabila
  • Kim, Kyunghoi

Abstract

Sediment microbial fuel cell (SMFC) is a sustainable technology to generate bioelectricity for bioenergy production. In this study, bamboo biochar is mixed with coastal benthic sediment from oyster farm as conductive aid to optimize SMFC capacity for bioelectricity production. Laboratory-scale SMFCs are constructed with different biochar dosages, including control (SMFC-P0) and biochar cases (SMFC-P5, SMFC-P10 and SMFC-P20), to confirm the effect of biochar on bioelectricity generation and carbon sequestration. Operating SMFCs with a moderate dosage of bamboo biochar in SMFC-P5 (5g biochar) and SMFC-P10 (10g biochar) reduces internal resistance by 29.8 % and 57.5 %, resulting in high output voltage for SMFC-P5 (23 mV) and SMFC-P10 (68 mV), with a 1.3 and 3.2-fold increase, respectively. SMFC-P10 achieves maximum power density of 19.7 mW/m2 with optimal biochar addition in anodic region, enhancing overall SMFC performance due to reduction in ohmic resistance. SMFC-P10 exhibits the highest redox activity, resulting in the highest current response during initial (10.4 mA) and final (8.22 mA) cyclic voltammetry. High electrode capacitance due to biochar addition minimizes charge transfer resistance, improving electron transfer. Anodic biofilm thrives under moderate biochar dosages below 2 %. Biochar addition reduces sediment CO2 emissions, indicating that it improves soil quality and effectively sequesters soil carbon.

Suggested Citation

  • Mohd Noor, Nurfarhana Nabila & Kim, Kyunghoi, 2025. "Boosting bioelectricity performance in sediment microbial fuel cells with raw bamboo biochar as a sustainable energy source," Renewable Energy, Elsevier, vol. 251(C).
    • Handle: RePEc:eee:renene:v:251:y:2025:i:c:s096014812501119x
    DOI: 10.1016/j.renene.2025.123457
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S096014812501119X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2025.123457?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    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:eee:renene:v:251:y:2025:i:c:s096014812501119x. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/renewable-energy .

    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.