scholarly journals Z-Schematic and visible-light-driven CO2 reduction using H2O as an electron donor by a particulate mixture of a Ru-complex/(CuGa)1−xZn2xS2 hybrid catalyst, BiVO4 and an electron mediator

2018 ◽  
Vol 54 (72) ◽  
pp. 10199-10202 ◽  
Author(s):  
Tomiko M. Suzuki ◽  
Shunya Yoshino ◽  
Tomoaki Takayama ◽  
Akihide Iwase ◽  
Akihiko Kudo ◽  
...  
Keyword(s):  
Visible Light ◽  
Electron Donor ◽  
Aqueous Suspension ◽  
Co2 Reduction ◽  
Metal Sulfide ◽  
Electron Mediator ◽  
Ru Complex ◽  
Particulate Metal ◽  
Visible Light Driven ◽  
Hybrid Photocatalyst

Visible-light-driven Z-schematic CO2 reduction using H2O as an electron donor was achieved by an aqueous suspension of a particulate metal-sulfide/molecular hybrid photocatalyst.

Photocatalytic CO2 reduction using water as an electron donor by a powdered Z-scheme system consisting of metal sulfide and an RGO–TiO2 composite

2017 ◽  
Vol 198 ◽  
pp. 397-407 ◽  
Author(s):  
Tomoaki Takayama ◽  
Ko Sato ◽  
Takehiro Fujimura ◽  
Yuki Kojima ◽  
Akihide Iwase ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Visible Light ◽  
Water Splitting ◽  
Electron Donor ◽  
Visible Light Irradiation ◽  
Co2 Reduction ◽  
Metal Sulfide ◽  
Electron Donors ◽  
Reduced Graphene

CuGaS2, (AgInS2)x–(ZnS)2−2x, Ag2ZnGeS4, Ni- or Pb-doped ZnS, (ZnS)0.9–(CuCl)0.1, and ZnGa0.5In1.5S4 showed activities for CO2 reduction to form CO and/or HCOOH in an aqueous solution containing K2SO3 and Na2S as electron donors under visible light irradiation. Among them, CuGaS2 and Ni-doped ZnS photocatalysts showed relatively high activities for CO and HCOOH formation, respectively. CuGaS2 was applied in a powdered Z-scheme system combining with reduced graphene oxide (RGO)-incorporated TiO2 as an O2-evolving photocatalyst. The powdered Z-scheme system produced CO from CO2 in addition to H2 and O2 due to water splitting. Oxygen evolution with an almost stoichiometric amount indicates that water was consumed as an electron donor in the Z-schematic CO2 reduction. Thus, we successfully demonstrated CO2 reduction of artificial photosynthesis using a simple Z-scheme system in which two kinds of photocatalyst powders (CuGaS2 and an RGO–TiO2 composite) were only dispersed in water under 1 atm of CO2.

scholarly journals Visible-light-driven CO2 reduction on a hybrid photocatalyst consisting of a Ru(ii) binuclear complex and a Ag-loaded TaON in aqueous solutions

2016 ◽  
Vol 7 (7) ◽  
pp. 4364-4371 ◽  
Author(s):  
Akinobu Nakada ◽  
Takuya Nakashima ◽  
Keita Sekizawa ◽  
Kazuhiko Maeda ◽  
Osamu Ishitani
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Binuclear Complex ◽  
Co2 Reduction ◽  
Light Irradiation ◽  
Photocatalytic System ◽  
Visible Light Driven ◽  
Hybrid Photocatalyst

A hybrid photocatalytic system consisting of a Ru(ii) binuclear complex and Ag-loaded TaON can reduce CO2 to HCOOH by visible light irradiation even in aqueous solution (TONHCOOH = 750, ΦHCOOH = 0.48%).

Covalent grafting of molecular photosensitizer and catalyst on MOF-808: effect of pore confinement toward visible light-driven CO2 reduction in water

2021 ◽  
Vol 14 (4) ◽  
pp. 2429-2440
Author(s):  
Sanchita Karmakar ◽  
Soumitra Barman ◽  
Faruk Ahamed Rahimi ◽  
Tapas Kumar Maji
Keyword(s):  
Visible Light ◽  
Aqueous Medium ◽  
Electron Donor ◽  
Co2 Reduction ◽  
Covalent Grafting ◽  
Visible Light Driven ◽  
Natural Photosynthesis

We have fabricated Zr-MBA-Ru/Re-MOFvia post-synthetic modification of MOF-808. The integrated catalyst assembly was used to mimic natural photosynthesis for sunlight-driven CO2 reduction to produce CO in aqueous medium without external sacrificial electron donor.

Visible-light CO2 reduction over a ruthenium(ii)-complex/C3N4 hybrid photocatalyst: the promotional effect of silver species

2018 ◽  
Vol 6 (20) ◽  
pp. 9708-9715 ◽  
Author(s):  
Kazuhiko Maeda ◽  
Daehyeon An ◽  
Chandana Sampath Kumara Ranasinghe ◽  
Tomoki Uchiyama ◽  
Ryo Kuriki ◽  
...  
Keyword(s):  
Visible Light ◽  
Co2 Reduction ◽  
Ru Complex ◽  
Promotional Effect ◽  
Hybrid Photocatalyst

Promotional effect of Ag species on visible-light CO2 reduction by a Ru-complex/Ag/C3N4 photocatalyst was examined.

Dye-Sensitized Fe-MOF nanosheets as Visible-Light driven photocatalyst for high efficient photocatalytic CO2 reduction

2022 ◽  
Vol 607 ◽  
pp. 1180-1188
Author(s):  
Ahmed Mahmoud Idris ◽  
Xinyan Jiang ◽  
Jun Tan ◽  
Zhenzhi Cai ◽  
Xiaodan Lou ◽  
...  
Keyword(s):  
Visible Light ◽  
Co2 Reduction ◽  
Dye Sensitized ◽  
High Efficient ◽  
Visible Light Driven
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