Journal
BIORESOURCE TECHNOLOGY
Volume 108, Issue -, Pages 55-59Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.10.040
Keywords
Microbial fuel cells; Wetland plant; Radius oxygen loss; Rice; Biocathode
Funding
- National Science Foundation of China [41090280]
- Knowledge Innovation Program of CAS [KZCX2-EW-402]
Ask authors/readers for more resources
Wetland plants possess the unique ability to release oxygen as well as organic matter into the rhizosphere. It is understood that microbial fuel cells (MFCs) can use organic matter from plants as key electron donors, but the effect of root excreted oxygen on MFCs is presently unknown. In this study, a novel biocathode was buried in the rice rhizosphere and found to be capable of delivering electrons to root excreted oxygen for oxygen reduction reactions. The voltages between electrodes in the rhizosphere and bulk soil were found to increase initially, but dissipate after approximately 1 month. Results from the MFC and oxygen microelectrode experiments indicated that the oxygen efflux rate from rice roots was dependent on the root maturity. Furthermore, the excreted oxygen from wetland plant roots could be used for the construction of highly efficient biocathodes. (c) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available