Enhanced H2 evolution over an Ir-doped SrTiO3 photocatalyst by loading of an Ir cocatalyst using visible light up to 800 nm

2018 ◽  
Vol 54 (75) ◽  
pp. 10606-10609 ◽  
Author(s):  
Sho Suzuki ◽  
Hiroe Matsumoto ◽  
Akihide Iwase ◽  
Akihiko Kudo
Keyword(s):  
Visible Light ◽  
Energy Gap ◽  
H2 Evolution

H2-reduction after loading of an Ir cocatalyst drastically enhanced the H2 evolution over an SrTiO3:Ir photocatalyst with a narrow energy gap.

Effect of Water/Acetonitrile Ratio on Dye-Sensitized Photocatalytic H2 Evolution under Visible Light Irradiation

2004 ◽  
Vol 127 (3) ◽  
pp. 413-416 ◽  
Author(s):  
Ryu Abe ◽  
Kazuhiro Sayama ◽  
Hideki Sugihara
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Energy Gap ◽  
Light Irradiation ◽  
Acetonitrile Solution ◽  
H2 Evolution ◽  
Tio2 Photocatalysts ◽  
Dye Sensitized ◽  
Highest Occupied Molecular Orbital ◽  
Splitting System

H 2 production in a water-acetonitrile solution containing iodide as an electron donor was investigated over dye-sensitized Pt∕TiO2 photocatalysts under visible light irradiation, as a potential water-splitting system based on an iodide redox mediator. The rates of H2 evolution decreased with increasing proportion of water in the solutions, because of a decrease in the energy gap between the redox potential of I3−∕I− and the highest occupied molecular orbital levels of the dyes, which decreases the efficiency of electron transfer from I− to dye.

Well-designed honeycomb Co3O4@CdS photocatalyst derived from cobalt foam for high-efficiency visible-light H2 evolution

2021 ◽  
Author(s):  
Chao Zhang ◽  
Baoquan Liu ◽  
Weiping Li ◽  
Xiangxue Liu ◽  
Ke Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
High Efficiency ◽  
H2 Evolution ◽  
One Step

Well-designed honeycomb Co3O4@CdS (H-Co3O4@CdS) was fabricated via a one-step strategy for efficient water splitting. During the decoration of CdS, honeycomb Co3O4 (H-Co3O4) with macropore was formed simultaneously. H-Co3O4 could enhance...

MAPbI3 microcrystals integrated with Ti3C2Tx MXene nanosheets for efficient visible-light photocatalytic H2 evolution

2021 ◽  
Author(s):  
Wenbo Li ◽  
Fang Wang ◽  
Zhengguo Zhang ◽  
Shixiong Min
Keyword(s):  
Aqueous Solution ◽  
Visible Light ◽  
H2 Evolution ◽  
Composite Photocatalysts ◽  
Photocatalytic H2 Evolution ◽  
Visible Light Photocatalytic

Integrating Ti3C2Tx MXene nanosheets (Ti3C2Tx NSs) as an efficient cocatalyst with MAPbI3 microcrystals results in superior MAPbI3/Ti3C2Tx NSs composite photocatalysts for H2 evolution from MAPbI3-saturated HI aqueous solution by visible...

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