Electricity production and RhB degradation in MFC-EF coupling system with iron and manganese composite cathode

SHI Ke; ZHAO Qingliang; WANG Weiye; WANG Kun

doi:10.11918/201904181

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Electricity production and RhB degradation in MFC-EF coupling system with iron and manganese composite cathode

更新时间：2026-10-23

- Electricity production and RhB degradation in MFC-EF coupling system with iron and manganese composite cathode
- Vol. 52, Issue 2, Pages: 129-137(2020)
- 作者机构：
  
  1. 城市水资源与水环境国家重点实验室(哈尔滨工业大学),哈尔滨,150090
  2. 哈尔滨工业大学环境学院,哈尔滨,150090
- 作者简介：
- 基金信息：
- DOI：10.11918/201904181
  CLC： TM911.45
- Published：2020
- 稿件说明：
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SHI Ke, ZHAO Qingliang, WANG Weiye, et al. Electricity production and RhB degradation in MFC-EF coupling system with iron and manganese composite cathode[J]. 2020, 52(2): 129-137.
DOI：

SHI Ke, ZHAO Qingliang, WANG Weiye, et al. Electricity production and RhB degradation in MFC-EF coupling system with iron and manganese composite cathode[J]. 2020, 52(2): 129-137. DOI： 10.11918/201904181.

摘要

为实现微生物燃料电池（MFC）微电的原位利用

结合电芬顿（EF）技术的优势

构建MFC-EF耦合系统.为进一步提高该耦合系统性能

在Fenton催化剂铁的基础上引入类芬顿（Fenton-like）催化剂锰

制备出铁锰双金属复合阴极（FeMnOx/CF复合电极

其中CF指碳纤维刷）

并与碳纤维（CF）无负载电极、Fe&Fe2O3/CF复合电极对比

探究MFC-EF耦合系统的电化学性能及其对目标污染物罗丹明B（RhB）的降解效果.结果表明

铁锰复合电极成功负载了Fe和Mn的二元金属氧化物

提高了耦合系统的最大输出功率（5.47 W/m3）

降低了电池的内阻（109.00 Ω）

提高了RhB的去除率（91.60%）和矿化率（30.84%）.此外

FeMnOx/CF复合电极摆脱了常规Fenton体系对阴极液pH的严格限制

扩大了MFC-EF耦合系统的阴极液pH范围.本研究实现了污染物处理过程中的资源再生和利用

有望为实际染料废水处理提供新的思路.

Abstract

In order to realize in-situ utilization of weak current generated in microbial fuel cell (MFC)

an MFC-EF coupling system was constructed by utilizing the advantages of electro-Fenton (EF) technology. To further improve the performance of the coupling system

a composite cathode of iron and manganese (FeMnOx/CF composite electrode

CF refers to carbon fiber brush) was prepared

which introduced Fenton-like catalyst manganese on the basis of Fenton catalyst iron. The electrochemical performance of the MFC-EF coupling system and its degradation effect on Rhodamine B (RhB) were investigated by being compared with CF unloaded electrode and Fe&Fe2O3/CF composite electrode. Results showed that FeMnOx/CF composite electrode was successfully loaded with the binary metal oxides of Fe and Mn. The maximum output power of the coupling system was improved (5.47 W/m3)

the internal resistance of the MFC was reduced (109.00 Ω)

and both the removal rate (91.60%) and mineralization rate (30.84%) of RhB were increased. Besides

the FeMnOx/CF composite electrode was free from the strict restriction of catholyte pH in conventional Fenton system

and the pH range of catholyte in MFC-EF coupling system was expanded. The study can realize the regeneration and utilization of resources in the process of pollutant removal

which is expected to provide a new idea for practical dye wastewater treatment.

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Related Author

ZHANG Weixian

ZHAO Qingliang

ZHANG Yunshu

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Related Institution

School of Municipal and Environmental Engineering, Harbin Institute of Technology

State Key Lab of Urban Water Resource and Environment(Harbin Institute of Technology)

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