Laboratory of Organic Solids, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China.
College of Chemistry , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China.
ACS Appl Mater Interfaces. 2019 Oct 23;11(42):38993-39000. doi: 10.1021/acsami.9b12560. Epub 2019 Oct 9.
A water-oxygen-water photosynthetic bioelectrochemical cell (PBEC) comprising hybrid poly(fluorene--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 the 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/cm, which is 2.5 times more than that of the BBY electrode, indicating that conjugated polymer can enhance the photoelectric response of PBEC.
设计并制备了一种由杂化聚芴-联苯（PFP）/富含 PSII 的膜（BBY）光电阳极和胆红素氧化酶（BOD）生物阴极组成的水-氧-水光合生物电化学电池（PBEC）。在 PBEC 中，水通过光电阳极 PSII 的光依赖性反应分解为氧气、质子和电子，氧气在生物阴极处被 BOD 催化转化为水，形成电子电路并产生电流。在光电阳极，PFP 可以同时促进光合作用水氧化和 BBY 与电极之间的电子转移。有趣的是，引入 PFP 后 PBEC 产生的光电流密度达到 1.05±0.01μA/cm，是 BBY 电极的 2.5 倍，表明共轭聚合物可以增强 PBEC 的光电响应。
