Enhanced performance of acridine degradation and power generation by microbial fuel cell with g-C3N4/PANI-DA/CF anode

被引：3

作者：

Jian M. ^{[1
,2
]}

Xue P. ^{[1
]}

Zhang X. ^{[2
]}

Xing Y. ^{[2
]}

Ma L. ^{[1
]}

Lv X. ^{[2
]}

Shi K. ^{[1
]}

机构：

[1] National Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan

[2] Ningxia Academy of Metrology & Quality Inspection, Yinchuan

来源：

Chemosphere | 2024年 / 362卷

基金：

中国国家自然科学基金;

关键词：

Acridine degradation; Elicitation; G-C[!sub]3[!/sub]N[!sub]4[!/sub]/PANI-DA/CF composite anode; Microbial fuel cell; Microbial nanowires;

D O I：

10.1016/j.chemosphere.2024.141752

中图分类号：

学科分类号：

摘要：

Microbial fuel cell (MFC) has attracted much attention in treating organic wastewater due to its double functions of degrading organics and generating electricity with microorganisms as biocatalysts. Unfortunately, some organics with biological toxicity such as acridine could inhibit the growth and activity of the microorganisms on the anode so that the double functions of MFC would recede. Enhancing microbial activity by using new biocompatible materials as anodes is prospective to solve problem. A novel anode was achieved by electrodepositing g-C3N4 sheets to the carbon felt (CF) modified with polyaniline-dopamine composite film, and used to treat wastewater containing acridine for the first time. After the operation of 13 d, MFC loading with the composite anode showed a degradation efficiency of 98.3% in 150 mg L−1 acridine, while that of CF-MFC was 55.8%. Moreover, MFC loading the modified anode obtained a maximum power density of 1976 ± 47 mW m−2, 140.1% higher than that of CF-MFC. Further analysis revealed that the functional microorganisms associated with acridine degradation such as Achromobacter and Alcaligenes were enriched on the g-C3N4/PANI-DA/CF anode. Moreover, the composite anode could improve the activity of microorganisms and elicit them to generate conductive nanowires, which was beneficial to transferring electrons from microbes to anode over long distances, suggesting a promising prospect application in MFC. © 2024

引用

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