Enhancement of Power Output by using Alginate Immobilized Algae in Biophotovoltaic Devices.

Sci Rep

Department of Chemical Engineering and Biotechnology, University of Cambridge, Philipa Fawcett Drive, CB3 0AS, Cambridge, United Kingdom.

Published: November 2017

We report for the first time a photosynthetically active algae immobilized in alginate gel within a fuel cell design for generation of bioelectricity. The algal-alginate biofilm was utilized within a biophotovoltaics (BPV) device developed for direct bioelectricity generation from photosynthesis. A peak power output of 0.289 mWm with an increase of 18% in power output compared to conventional suspension culture BPV device was observed. The increase in maximum power density was correlated to the maximum relative electron transport rate (rETRm). The semi-dry type of photosynthetically active biofilm proposed in this work may offer significantly improved performances in terms of fuel cell design, bioelectricity generation, oxygen production and CO reduction.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5701143PMC
http://dx.doi.org/10.1038/s41598-017-16530-yDOI Listing

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