兰州大学机构库
Enhanced Electricity Generation and Heavy Metal Removal by a Rutile-Biochar Cathode MFC
Zhou, Jiqiang1,2; Wang, Lei1,2,3; Wang, Zhe1,2; Feng, Yonglin1,2; Luo, Guangfeng1,2; Wang, Zhiyang1,2; Wu, Jing1,2; Hu, Peiqing4
2023-10
Source PublicationMinerals   Impact Factor & Quartile
ISSN2075-163X
EISSN2075-163X
Volume13Issue:10
page numbers13
AbstractThe issue of heavy metal pollution has gradually emerged as a significant global concern. Microbial fuel cells (MFCs) hold immense potential for clean energy production and pollutant treatment. However, their limited power generation efficiency hampers the large-scale implementation of MFCs. The porous microstructure of biochar and the excellent physical and chemical properties of rutile render both materials promising catalysts with positive potential. In this study, we employed biochar as a carrier for rutile to fabricate a novel rutile-biochar (Rut-B) composite material, investigating its efficacy in enhancing MFC power generation efficiency as a cathode catalyst, as well as its application in heavy metal pollutant degradation. Scanning electron microscopy (SEM) results confirmed the successful preparation of biochar-loaded rutile composites. The MFC achieved maximum current density and power density values of 152.26 mA/m2 and 9.88 mW/m2, respectively-an increase of 102.7% and 224% compared to the control group without the addition of Rut-B. Furthermore, the biochar-loaded rutile MFC exhibited excellent performance in degrading heavy metal pollutants; within 7 h, the Pb2+ degradation rate reached 92.4%, while the Zn2+ degradation rate reached 84%. These rates were significantly higher than those observed in the control group, by factors of 437.2% and 345%, respectively. The cyclic degradation experiments also demonstrated the outstanding stability of the system over multiple cycles. In summary, this study successfully combined natural rutile with biochar to create an efficient electrode catalyst that not only enhances electricity generation performance but also provides an environmentally friendly and cost-effective approach for remediating heavy metal pollution.
KeywordMFC cathode catalysis rutile biochar heavy metal pollution
PublisherMDPI
DOI10.3390/min13101250
Indexed BySCIE
Language英语
WOS Research AreaGeochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
WOS SubjectGeochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
WOS IDWOS:001095115600001
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/569199
Collection兰州大学
Corresponding AuthorWang, Lei; Hu, Peiqing
Affiliation
1.Gansu Nonferrous Engn Survey Design & Res Inst, Lanzhou 730000, Peoples R China;
2.Technol Innovat Ctr Mine Geol Environm Restorat Al, Lanzhou 730000, Peoples R China;
3.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China;
4.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Jiqiang,Wang, Lei,Wang, Zhe,et al. Enhanced Electricity Generation and Heavy Metal Removal by a Rutile-Biochar Cathode MFC[J]. Minerals,2023,13(10).
APA Zhou, Jiqiang.,Wang, Lei.,Wang, Zhe.,Feng, Yonglin.,Luo, Guangfeng.,...&Hu, Peiqing.(2023).Enhanced Electricity Generation and Heavy Metal Removal by a Rutile-Biochar Cathode MFC.Minerals,13(10).
MLA Zhou, Jiqiang,et al."Enhanced Electricity Generation and Heavy Metal Removal by a Rutile-Biochar Cathode MFC".Minerals 13.10(2023).
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