Photoelectric performance of bacteria photosynthetic proteins entrapped on tailored mesoporous WO3-TiO2 films.
Novel three-dimensional wormlike mesoporous WO(3)-TiO(2) films with tailored pore size (approximately 7.1 nm) were applied to prepare the bio-photoelectrodes (Bio-PEs) through direct entrapping the bacteria photosynthetic reaction center (RC) proteins. These mesoporous WO(3)-TiO(2) films exhibited unique characteristics in the specific loading of RC with high activity retained. Moreover, well-matched energy levels of WO(3)-TiO(2) and RC contributed to the photoelectric performance, especially in the red to near-infrared (NIR) region, of the derived Bio-PEs. Such strategy of manipulating the Bio-PEs based on well-designed mesoporous metal oxides and RC provides an alternative system to probe the photoinduced multiple-pathway electron transfer of photosensitive chromophores, which may open a new perspective to develop versatile bio-photoelectric devices.
Lu
Yidong
Y
Chemistry Department, Fudan University, Shanghai 200433, China.
Yuan
Minjia
M
Liu
Yuan
Y
Tu
Bo
B
Xu
Chunhe
C
Liu
Baohong
B
Zhao
Dongyuan
D
Kong
Jilie
J
D000327:Adsorption; D001426:Bacterial Proteins / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D004579:Electron Transport; D004581:Electronics / Q000295:instrumentation / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000737:chemistry; D010316:Particle Size; D010777:Photochemistry; D045322:Photosynthetic Reaction Center Complex Proteins / Q000737:chemistry*; D016062:Porosity; D019265:Spectroscopy, Near-Infrared; D013499:Surface Properties; D013997:Time Factors; D014025:Titanium / Q000737:chemistry*; D017973:Tungsten Compounds / Q000737:chemistry*
D001426:Bacterial Proteins; D045322:Photosynthetic Reaction Center Complex Proteins; D017973:Tungsten Compounds; C009495:titanium dioxide; D014025:Titanium; D009584:Nitrogen