Electron transfer dynamics and enhanced H2 production activity of hydrangea-like BiOBr/Bi2S3-based photocatalysts with Cu-complex as a redox mediator

2021 ◽  
pp. 151870
Author(s):  
Chi-Jung Chang ◽  
Chieh-Lin Huang ◽  
Yuan-Hsiang Yu ◽  
Ming-Chun Teng ◽  
Chao-Lung Chiang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
H2 Production ◽  
Redox Mediator ◽  
Cu Complex ◽  
Production Activity

Ternary NiS/ZnxCd1-xS/Reduced Graphene Oxide Nanocomposites for Enhanced Solar Photocatalytic H2-Production Activity

2014 ◽  
Vol 4 (10) ◽  
pp. 1301925 ◽  
Author(s):  
Jun Zhang ◽  
Lifang Qi ◽  
Jingrun Ran ◽  
Jiaguo Yu ◽  
Shi Zhang Qiao
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
H2 Production ◽  
Reduced Graphene ◽  
Production Activity

Mono-Transition-Metal-substituted Polyoxometalates as Shuttle Redox Mediator for Z-scheme Water Splitting under Visible Light

2021 ◽  
Author(s):  
Osamu Tomita ◽  
Hiroki Naito ◽  
Akinobu Nakada ◽  
Masanobu Higashi ◽  
Ryu Abe
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Visible Light ◽  
Water Splitting ◽  
Redox Mediator

Because the majority of Z-scheme water splitting systems employ a shuttle redox mediator that allows electron transfer between two photocatalyst materials, the development of an effective redox mediator is crucial...

S-Scheme α-Fe2O3/TiO2 Photocatalyst with Pd Cocatalyst for Enhanced Photocatalytic H2 Production Activity and Stability

2021 ◽  
Author(s):  
Weerapong Bootluck ◽  
Thawat Chittrakarn ◽  
Kuaanan Techato ◽  
Panitan Jutaporn ◽  
Watsa Khongnakorn
Keyword(s):  
H2 Production ◽  
Tio2 Photocatalyst ◽  
Production Activity

Bioconversion of Carbon Monoxide to Formate Using Artificially Designed Carbon Monoxide:Formate Oxidoreductase in Hyperthermophilic Archaea

2021 ◽  
Author(s):  
Jae Kyu Lim ◽  
Ji-In Yang ◽  
Yun Jae Kim ◽  
Yeong-Jun Park ◽  
Yong Hwan Kim
Keyword(s):  
Carbon Monoxide ◽  
Electron Transfer ◽  
Fusion Protein ◽  
Direct Electron Transfer ◽  
Co2 Reduction ◽  
Hyperthermophilic Archaea ◽  
Production Activity ◽  
Formate Production

Abstract Ferredoxin-dependent metabolic engineering of electron transfer circuits has been developed to enhance redox efficiency in the field of synthetic biology, e.g., for hydrogen production and for reduction of flavoproteins or NAD(P)+. Here, we present the bioconversion of carbon monoxide (CO) gas to formate via a synthetic CO:formate oxidoreductase (CFOR), designed as an enzyme complex for direct electron transfer between noninteracting CO dehydrogenase and formate dehydrogenase using an electron-transferring Fe-S fusion protein. The CFOR-introduced Thermococcus onnurineus mutant strains showed CO-dependent formate production in vivo and in vitro. The formate production rate from purified CFOR complex and specific formate productivity from the bioreactor were 348 ± 34 μmol/mg/min and 90.2 ± 20.4 mmol/g-cells/h, respectively. The CO-dependent CO2 reduction/formate production activity of synthetic CFOR was confirmed, indicating that direct electron transfer between two unrelated dehydrogenases was feasible via mediation of the FeS-FeS fusion protein.

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