Achieving solar overall water splitting with hybrid photosystems of photosystem II and artificial photocatalysts

被引：0
作者：
Wangyin Wang
Jun Chen
Can Li
Wenming Tian
机构：
[1] State Key Laboratory of Catalysis,
[2] Dalian Institute of Chemical Physics,undefined
[3] Chinese Academy of Sciences; Dalian National Laboratory for Clean Energy,undefined
[4] Dalian National Laboratory for Clean Energy,undefined
[5] Graduate University of Chinese Academy of Sciences,undefined
[6] State Key Laboratory of Molecular Reaction Dynamics,undefined
[7] Dalian Institute of Chemical Physics,undefined
[8] Chinese Academy of Sciences,undefined
来源：
Nature Communications | / 5卷
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Solar overall water splitting is a promising sustainable approach for solar-to-chemical energy conversion, which harnesses solar irradiation to oxidize water to oxygen and reduce the protons to hydrogen. The water oxidation step is vital but difficult to achieve through inorganic photocatalysis. However, nature offers an efficient light-driven water-oxidizing enzyme, photosystem II (PSII). Here we report an overall water splitting natural–artificial hybrid system, in which the plant PSII and inorganic photocatalysts (for example, Ru/SrTiO3:Rh), coupled with an inorganic electron shuttle [Fe(CN)63−/Fe(CN)64−], are integrated and dispersed in aqueous solutions. The activity of this hybrid photosystem reaches to around 2,489 mol H2 (mol PSII)−1 h−1 under visible light irradiation, and solar overall water splitting is also achieved under solar irradiation outdoors. The optical imaging shows that the hybrid photosystems are constructed through the self-assembly of PSII adhered onto the inorganic photocatalyst surface. Our work may provide a prototype of natural–artificial hybrids for developing autonomous solar water splitting system.
引用
收藏
相关论文
共 121 条
  • [1] Lewis NS(2006)Powering the planet: chemical challenges in solar energy utilization Proc. Natl Acad. Sci. USA 103 15729-15735
  • [2] Nocera DG(2010)A red-shifted chlorophyll Science 329 1318-1319
  • [3] Chen M(2004)Architecture of the photosynthetic oxygen-evolving center Science 303 1831-1838
  • [4] Ferreira KN(2011)Crystal structure of oxygen-evolving photosystem II at a resolution of 1.9 Å Nature 473 55-60
  • [5] Iverson TM(2009)Principles, efficiency, and blueprint character of solar-energy conversion in photosynthetic water oxidation Acc. Chem. Res. 42 1861-1870
  • [6] Maghlaoui K(2011)Redirecting electron transfer in photosystem II from water to redox-active metal complexes J. Am. Chem. Soc. 133 13260-13263
  • [7] Barber J(2011)Photosystem II-gold nanoparticle conjugate as a nanodevice for the development of artificial light-driven water-splitting systems J. Phys. Chem. Lett. 2 2448-2452
  • [8] Iwata S(2008)Photo-induced electron transfer between photosystem 2 via cross-linked redox hydrogels Electroanalysis 20 1043-1047
  • [9] Umena Y(2012)Integrated photosystem II-based photo-bioelectrochemical cells Nat. Commun. 3 1741-10613
  • [10] Kawakami K(2013)Covalent immobilization of oriented photosystem II on a nanostructured electrode for solar water oxidation J. Am. Chem. Soc. 135 10610-6309
12345678910