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<p>Microbial fuel cells (MFCs) have emerged as a sustainable technology for simultaneous wastewater treatment, electricity generation, and water desalination. In this study, a ceramic membrane incorporating bamboo leaf ash (BLA) was developed and integrated into an MFC. The primary objective was to optimize the amount of BLA for synthesis of membranes for achieving effective treatment of reverse osmosis (RO) reject water in MFC. The BLA-based ceramic membrane (20%) exhibiting a surface area of 20.364&#xa0;m²/g, a pore volume of 0.03&#xa0;cc/g, and a pore radius of 12.259 Å. Compared to MFC 2, whose pure ceramic membrane showed a 46% reduction in conductivity and a power output of 0.85&#xa0;W/m², MFC 1 equipped with a 20% BLA membrane demonstrated a markedly higher 89% reduction in conductivity and an enhanced power density of 1.25&#xa0;W/m². These enhancements are attributed to the increased porosity and surface area of BLA-based ceramic membrane, which facilitated improved ion transport and microbial activity. Overall, the results demonstrate that the addition of a proportion of 20% BLA to ceramic membranes offers a cost-effective and environmentally friendly solution for advancing MFC performance. This study provides a novel approach to membrane fabrication using biomass waste, contributing to sustainable water treatment and clean energy generation.</p> Graphical Abstract <p></p>

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A ceramic membrane developed from bamboo leaves for a microbial fuel cell

  • 期刊论文

  • 发表日期：

    2026年1月23日

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  • Kumar Sonu,
  • Monika Sogani,
  • Zainab Syed,
  • Karishma Maheshwari

摘要

Microbial fuel cells (MFCs) have emerged as a sustainable technology for simultaneous wastewater treatment, electricity generation, and water desalination. In this study, a ceramic membrane incorporating bamboo leaf ash (BLA) was developed and integrated into an MFC. The primary objective was to optimize the amount of BLA for synthesis of membranes for achieving effective treatment of reverse osmosis (RO) reject water in MFC. The BLA-based ceramic membrane (20%) exhibiting a surface area of 20.364 m²/g, a pore volume of 0.03 cc/g, and a pore radius of 12.259 Å. Compared to MFC 2, whose pure ceramic membrane showed a 46% reduction in conductivity and a power output of 0.85 W/m², MFC 1 equipped with a 20% BLA membrane demonstrated a markedly higher 89% reduction in conductivity and an enhanced power density of 1.25 W/m². These enhancements are attributed to the increased porosity and surface area of BLA-based ceramic membrane, which facilitated improved ion transport and microbial activity. Overall, the results demonstrate that the addition of a proportion of 20% BLA to ceramic membranes offers a cost-effective and environmentally friendly solution for advancing MFC performance. This study provides a novel approach to membrane fabrication using biomass waste, contributing to sustainable water treatment and clean energy generation.

Graphical Abstract