Photosystem II-Carbon Nitride Photoanodes for Scalable Biophotoelectrochemistry

Simple item page
dc.contributor.authorZhang, H.
dc.contributor.authorTian, W.
dc.contributor.authorLin, J.
dc.contributor.authorZhang, P.
dc.contributor.authorShao, G.
dc.contributor.authorRavi, S.K.
dc.contributor.authorSun, H.
dc.contributor.authorCortés, E.
dc.contributor.authorAndrei, V.
dc.contributor.authorWang, S.
dc.date.issued2025
dc.descriptionOnlinePubl. Available online 15 August 2025
dc.description.abstractPhotosystem II (PSII) is a vital photosynthetic enzyme with the potential for sustainable bioelectricity and fuel generation. However, interfacing PSII with intricate, small-scale electrodes for practical applications has been challenging. This study addresses this by creating protonated macroporous carbon nitride (MCN) as support and developing a scalable spray-freeze method to wire PSII with MCN. This facilitates the production of large-area MCN-PSII photoanodes up to 33 cm² for biophotoelectrochemical water oxidation to O², achieving efficient interfacial charge transfer and initial photocurrents in the mA range with Faradaic yield of 93.5 ± 8.5% over 5 h. A bias-free biophotoelectrochemical (BPEC) device is designed by connecting the MCN-PSII photoanode to a carbon nanotube cathode loaded with bilirubin oxidase. An array of eight tandem BPEC cells with a photoactive area of 72 cm² successfully powers low-power electronics, such as LEDs. This work paves an efficient way for bioelectrode fabrication, showcasing the potential of PSII-based semi-artificial systems for BPEC and biophotovoltaic applications.
dc.description.statementofresponsibilityHuayang Zhang, Wenjie Tian, Jingkai Lin, Peng Zhang, Guosheng Shao, Sai Kishore Ravi, Hongqi Sun, Emiliano Cortés, Virgil Andrei, and Shaobin Wang
dc.identifier.citationAdvanced Materials, 2025; e08813-1-e08813-11
dc.identifier.doi10.1002/adma.202508813
dc.identifier.issn0935-9648
dc.identifier.issn1521-4095
dc.identifier.orcidTian, W. [0000-0002-7503-5481] [0000-0002-9896-1154]
dc.identifier.orcidLin, J. [0000-0001-6409-0146]
dc.identifier.orcidWang, S. [0000-0002-1751-9162]
dc.identifier.urihttps://hdl.handle.net/2440/147718
dc.language.isoen
dc.publisherWiley
dc.relation.granthttp://purl.org/au-research/grants/arc/DE220101074
dc.relation.granthttp://purl.org/au-research/grants/arc/DP230102406
dc.relation.granthttp://purl.org/au-research/grants/arc/DP240102787
dc.relation.granthttp://purl.org/au-research/grants/arc/FL230100178
dc.rights© 2025 The Author(s). Advanced Materials published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
dc.source.urihttps://doi.org/10.1002/adma.202508813
dc.subjectartificial photosynthesis; biophotovoltaic; macroporous carbon nitride; photoelectrochemistry; photosystem II
dc.titlePhotosystem II-Carbon Nitride Photoanodes for Scalable Biophotoelectrochemistry
dc.typeJournal article
pubs.publication-statusPublished

Files

Collections

Research Outputs