Bioelectrochemical behavior of Ordered Mesoporous Carbon + B. subtilis as bioanode for the production of bioenergy in a Microbial Fuel Cell (MFC)

IF 1 4区工程技术 Q4 CHEMISTRY, APPLIED

Revista Mexicana De Ingenieria Quimica Pub Date : 2023-06-26 DOI:10.24275/rmiq/ener2320

S. García-Mayagotia, Desarrollo y aplicación de las F.J. Rodríguez-Varela, ecuaciones de Stefan-Maxwell F. Fernández-Luqueño, I. L. A. Stephen Whitaker, S. A. Medina-Moreno, S. Huerta-Ochoa, C. Lucho-Constantino, L. Aguilera-Vázquez, A. J. O. non-functionalized, M. G. non-functionalized, L. Mayorga-Reyes 0.191 cm g, P. B. R. Cyclic, A. G. V. CVs, E. Pharmaceutical, A. A. wastewater, G. I. G. bioenergy, H. A. V. F. T. MFC., G. Gutiérrez-López, H. Hernández‐Sánchez, J. G., R. L. R. O. tuvo, G. G., C. Sarabia-Castillo, J. Carrillo-Rodríguez, Alonso-Lemus, P. Meléndez-González, B. Escobar-Morales

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引用次数: 0

Abstract

The bioelectrochemical behavior of non-functionalized Ordered Mesoporous Carbon (OMC) and functionalized with methanol at di ff erent concentrations (0.15, 0.5 and 1 M, labeled as OMC015, OMC05, and OMC1, respectively), forming bioanodes with Bacillus subtilis ( B. subtilis ) as the electrochemically active microorganism (EAM), was evaluated in a dual-chamber Microbial Fuel Cell (MFC). OMC015 showed the highest surface area (550.0 m 2 g − 1 ) with a total pore volume of 0.270 cm 3 g − 1 (those of OMC were 410.6 m 2 g − 1 and 0.191 cm 3 g − 1 , respectively). Cyclic voltammograms (CVs) in pharmaceutical wastewater (PWW, pH = 7.1) showed an enhanced bioelectrochemical behavior of the OMC + B. subtilis and OMC015 + B. subtilis bioanodes compared to OMC05 + B. subtilis and OMC1 + B. subtilis . Therefore, the two former bioanodes were evaluated in the MFC containing PWW as substrate in the anode chamber. The results showed di ff erences in the behavior of the bioanodes in long-term tests (7 days) in the MFC. OMC + B. subtilis showed a decrease in Open Circuit Voltage (OCV) and current density (j) values from Day 0 to Day 3, followed by a slight increase in j and a higher OCV at Day 7 (compared to Day 3). Meanwhile, OMC015 + B. subtilis showed a more stable bioelectrochemical behavior, with slight variations in OCV and j at Days 0, 3 and 7. The maximum power density (P cell ) of the MFC was 12.3 mW m − 2 with OMC015 + B. subtilis at Day 3 of operation. The results showed the biocompatibility between the OMC015 catalysts and B. subtilis as EAM, and their catalytic activity to oxidize organic matter contained in PWW, generating bioenergy from the MFC.

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有序介孔碳+枯草芽孢杆菌作为生物节点在微生物燃料电池（MFC）中生产生物能的生物电化学行为

在双室微生物燃料电池（MFC）中评估了非官能化有序介孔碳（OMC）和用不同浓度（0.15、0.5和1M，分别标记为OMC015、OMC05和OMC1）的甲醇官能化的生物电化学行为，以枯草芽孢杆菌（B.subtilis）作为电化学活性微生物（EAM）形成生物节点。OMC015显示出最高的表面积（550.0 m 2 g−1），总孔体积为0.270 cm 3 g−1（OMC的孔体积分别为410.6 m 2 g–1和0.191 cm 3 g–1）。制药废水（PWW，pH=7.1）中的循环伏安图（CV）显示，与OMC05+枯草芽孢杆菌和OMC1+枯草芽孢杆菌相比，OMC+枯草芽孢菌和OMC015+枯草芽孢菌生物节点的生物电化学行为增强。因此，在阳极室中，在含有PWW作为基质的MFC中评估了两种前生物节点。结果显示，在MFC的长期测试（7天）中，生物节点的行为存在差异。从第0天到第3天，OMC+枯草芽孢杆菌显示开路电压（OCV）和电流密度（j）值降低，随后在第7天（与第3天相比）j略有增加和OCV更高。同时，OMC015+枯草芽孢杆菌表现出更稳定的生物电化学行为，在第0、3和7天的OCV和j略有变化。在操作的第3天，使用OMC015+枯草芽孢杆菌的MFC的最大功率密度（P细胞）为12.3mW m−2。结果表明，OMC015催化剂与作为EAM的枯草芽孢杆菌之间具有生物相容性，并且它们具有氧化PWW中所含有机物的催化活性，从而从MFC中产生生物能量。

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来源期刊

Revista Mexicana De Ingenieria Quimica 化学-工程：化工

CiteScore

3.60

自引率

33.30%

发文量

审稿时长

>12 weeks

期刊介绍： Revista Mexicana de Ingeniería Química (ISSN 1665-2738) publishes original research articles, with the aim of promoting rapid communication of relevant research in the several disciplines within Chemical Engineering and its interfaces with other engineering disciplines. The contents of the journal are directed to researchers, academics, students and decision makers. The covered topics are: Thermodynamics; Catalysis, kinetics and reactors; Simulation and control; Transport phenomena; Safety; Process engineering; Biotechnology; Food engineering; Sustainable development; Environmental engineering; Materials; Applied mathematics and Education.