Surface Modification of Carbon Cloth Anodes To Boost Microbial Fuel Cell Performance in Distillery Wastewater Processing

IF 3.2 4区化学 Q3 CHEMISTRY, PHYSICAL

Electrocatalysis Pub Date : 2025-12-22 DOI:10.1007/s12678-025-00998-8

Bhavi Pandya, Latesh Chaudhari

{"title":"Surface Modification of Carbon Cloth Anodes To Boost Microbial Fuel Cell Performance in Distillery Wastewater Processing","authors":"Bhavi Pandya, Latesh Chaudhari","doi":"10.1007/s12678-025-00998-8","DOIUrl":null,"url":null,"abstract":"<div><p>The study aimed to enhance the performance of microbial fuel cells (MFCs) by employing carbon cloth anodes modified with ferric oxide (Fe<sub>2</sub>O<sub>3</sub>) and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) for the treatment of distillery wastewater. Two double-chambered MFCs were developed: MFC-1 utilized standard carbon cloth, whereas MFC-2 featured carbon cloth anodes treated with Fe<sub>2</sub>O<sub>3</sub>/H<sub>2</sub>O<sub>2</sub>. Fourier transform infrared spectroscopy (FTIR) analysis revealed the presence of oxygen-rich functional groups on the modified carbon cloth, which facilitated the attachment of exoelectrogenic bacteria. Scanning electron microscopy (SEM) images showed a rougher surface on the modified carbon cloth, thereby increasing the area available for microbial colonization. MFC-2 achieved a higher maximum open-circuit voltage of 0.811 V, compared to 0.454 V for MFC-1. Polarization curves demonstrated peak power densities of 44.42 mW/m<sup>2</sup> for MFC-1 and 64.40 mW/m<sup>2</sup> for MFC-2. Electrochemical impedance spectroscopy (EIS) indicated a smaller Nyquist semicircle for MFC-2, suggesting reduced charge transfer resistance. SEM analysis of the biofilm on the anodes confirmed improved microbial adhesion on the modified carbon cloth. The research highlights the effectiveness of Fe<sub>2</sub>O<sub>3</sub>/H<sub>2</sub>O<sub>2</sub>-modified carbon cloth anodes in boosting the performance of microbial fuel cells (MFCs) for distillery wastewater treatment. This finding underscores the critical role of electrode surface modifications in enhancing microbial attachment and facilitating efficient electron transfer.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 2","pages":"273 - 281"},"PeriodicalIF":3.2000,"publicationDate":"2025-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrocatalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s12678-025-00998-8","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The study aimed to enhance the performance of microbial fuel cells (MFCs) by employing carbon cloth anodes modified with ferric oxide (Fe₂O₃) and hydrogen peroxide (H₂O₂) for the treatment of distillery wastewater. Two double-chambered MFCs were developed: MFC-1 utilized standard carbon cloth, whereas MFC-2 featured carbon cloth anodes treated with Fe₂O₃/H₂O₂. Fourier transform infrared spectroscopy (FTIR) analysis revealed the presence of oxygen-rich functional groups on the modified carbon cloth, which facilitated the attachment of exoelectrogenic bacteria. Scanning electron microscopy (SEM) images showed a rougher surface on the modified carbon cloth, thereby increasing the area available for microbial colonization. MFC-2 achieved a higher maximum open-circuit voltage of 0.811 V, compared to 0.454 V for MFC-1. Polarization curves demonstrated peak power densities of 44.42 mW/m² for MFC-1 and 64.40 mW/m² for MFC-2. Electrochemical impedance spectroscopy (EIS) indicated a smaller Nyquist semicircle for MFC-2, suggesting reduced charge transfer resistance. SEM analysis of the biofilm on the anodes confirmed improved microbial adhesion on the modified carbon cloth. The research highlights the effectiveness of Fe₂O₃/H₂O₂-modified carbon cloth anodes in boosting the performance of microbial fuel cells (MFCs) for distillery wastewater treatment. This finding underscores the critical role of electrode surface modifications in enhancing microbial attachment and facilitating efficient electron transfer.

Graphical Abstract

Abstract Image

查看原文本刊更多论文

碳布阳极表面改性提高微生物燃料电池在蒸馏废水处理中的性能

采用氧化铁（Fe2O3）和过氧化氢（H2O2）改性碳布阳极处理蒸馏废水，提高微生物燃料电池（MFCs）的性能。开发了两种双室mfc: MFC-1采用标准碳布，而MFC-2采用碳布阳极，经Fe2O3/H2O2处理。傅里叶变换红外光谱（FTIR）分析表明，改性碳布上存在富氧官能团，有利于外电细菌的附着。扫描电子显微镜（SEM）图像显示，改性碳布表面更粗糙，从而增加了微生物定植的可用面积。MFC-2的最大开路电压为0.811 V，而MFC-1的最大开路电压为0.454 V。极化曲线显示MFC-1的峰值功率密度为44.42 mW/m2， MFC-2的峰值功率密度为64.40 mW/m2。电化学阻抗谱（EIS）显示MFC-2具有较小的Nyquist半圆，表明其电荷转移电阻降低。对阳极上生物膜的SEM分析证实了改性碳布上微生物粘附性的提高。该研究强调了Fe2O3/ h2o2改性碳布阳极在提高微生物燃料电池（mfc）处理蒸馏废水性能方面的有效性。这一发现强调了电极表面修饰在增强微生物附着和促进有效电子转移方面的关键作用。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Electrocatalysis CHEMISTRY, PHYSICAL-ELECTROCHEMISTRY

CiteScore

4.80

自引率

6.50%

发文量

审稿时长

>12 weeks

期刊介绍： Electrocatalysis is cross-disciplinary in nature, and attracts the interest of chemists, physicists, biochemists, surface and materials scientists, and engineers. Electrocatalysis provides the unique international forum solely dedicated to the exchange of novel ideas in electrocatalysis for academic, government, and industrial researchers. Quick publication of new results, concepts, and inventions made involving Electrocatalysis stimulates scientific discoveries and breakthroughs, promotes the scientific and engineering concepts that are critical to the development of novel electrochemical technologies. Electrocatalysis publishes original submissions in the form of letters, research papers, review articles, book reviews, and educational papers. Letters are preliminary reports that communicate new and important findings. Regular research papers are complete reports of new results, and their analysis and discussion. Review articles critically and constructively examine development in areas of electrocatalysis that are of broad interest and importance. Educational papers discuss important concepts whose understanding is vital to advances in theoretical and experimental aspects of electrochemical reactions.