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BES research in electrode, membrane. A water-oxygen-water photosynthetic bioelectrochemical cell (PBEC) comprised of hybrid poly(fluorene...

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Abstract

A water-oxygen-water photosynthetic bioelectrochemical cell (PBEC) comprised of hybrid poly(fluorene-alt-phenylene) (PFP)/PSII-enriched membranes (BBY) photoanode and bilirubin oxidase (BOD) biocathode has been designed and fabricated. In the PBEC, water is split into oxygen, protons and electrons through light-dependent reaction of PSII at the photoanode, and oxygen is converted into water catalyzed by BOD at the biocathode, forming the electronic circuit and generating current. At photoanode, PFP can simultaneously accelerate the photosynthetic water oxidation and the electron transfer between BBY and electrode. Interestingly, the photocurrent density produced by PBEC after the introduction of PFP reaches 1.05±0.01 μA/cm², which is 2.5 times more than that of BBY electrode, indicating that conjugated polymer can enhance the photoelectric response of PBEC.

Keywords

PhotocurrentBilirubin oxidaseElectrodePhotochemistryPhotoelectrochemical cellChemical engineering

Identifiers

DOI
10.1021/acsami.9b12560
Journal
ACS Applied Materials & Interfaces
Year
2019