Bioelectricity generation and remission glyphosate stress for wheat by microbial fuel cell with a high-performance hollow Fe/Fe5C2-SNC@PNC cathode derived from mother-child “MOF on MOF”

Citation

Zhang, Xueli and Wang, Qiuhong and Chang, Bing and Lang, Jianfeng and Lv, Cuicui and Looi, Leyjuen and Jia, Linhui and Ding, Shuaiqi and Chen, Yu and Qin, Jumiao and Chen, Quanhao and Hao, Zexuan and Li, Kexun and Liu, Runqiang and Wu, Yanbing (2026) Bioelectricity generation and remission glyphosate stress for wheat by microbial fuel cell with a high-performance hollow Fe/Fe5C2-SNC@PNC cathode derived from mother-child “MOF on MOF”. Biosensors and Bioelectronics, 301. art. no. 118512. pp. 1-12. ISSN 0956-5663; eISSN: 1873-4235

Abstract

Glyphosate residues pose significant ecological risks and microbial fuel cell (MFC) can degrade pesticides and generate bioelectricity but hindered by sluggish bioelectrons transfer in cathode. In this study, a mother-child “MOF-on-MOF” precursor (MOF: metal-organic framework) is designed via giving birth to ZnFe Prussian blue analogue (Zn-Fe PBA) from zinc based zeolite imidazole framework (ZIF-8) through a diffusion-controlled nucleophilic substitution reaction of Fe(CN)63−. The derived hollow nanocage-supported carbon-encapsulated Fe/Fe5C2 electrocatalyst (Fe/Fe5C2-SNC@PNC) exhibites superior activity for bioelectrons acceptance in oxygen reduction reaction (ORR), surpassing those of Fe/Fe3C-SNC and PNC derived from ZnFe PBA and ZIF-8 alone. The maximum power density of MFC with Fe/Fe5C2-SNC@PNC cathode reaches up to 1814 mW m−2 and the efficiency of COD removal is 87.5%. Besides, MFCs connected in series are utilized to drive the low-power devices of the mobile phone, digital watches, and LED lights in practical applications. The remission to wheat growth through MFC with the Fe/Fe5C2-SNC@PNC cathodes for glyphosate stress was demonstrated by eight growth indexes (52.42% ∼ 127.2%), four antioxidant enzymes (42.81% ∼ 96.93%) and chlorophyll (20.74% ∼ 30.91%). The high-throughput sequencing reveals that Pseudomonadota (50.9% ± 2.9%), Actinomycetota (26.6% ± 2.8%) and Bacteroidota (14.3% ± 1.5%) play a pivotal role in driving glyphosate degradation and energy conversion. This study establishes a theoretical foundation for the formation of mother-child “MOF-on-MOF” structures and paves the way for pesticide-stress remediation.

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Additional Metadata

Item Type:	Article
Subject:	Biotechnology
Subject:	Biophysics
Divisions:	Faculty of Forestry and Environment
DOI Number:	https://doi.org/10.1016/j.bios.2026.118512
Publisher:	Elsevier
Keywords:	Bioelectricity; Microbial fuel cell; MOF on MOF; Nucleophilic substitution; Pesticide stress
Depositing User:	MS. HADIZAH NORDIN
Date Deposited:	13 Apr 2026 03:30
Last Modified:	13 Apr 2026 03:30
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.bios.2026.118512
URI:	http://psasir.upm.edu.my/id/eprint/123343
Statistic Details:	View Download Statistic

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