Controlling the visible-light driven photocatalytic activity of alloyed ZnSe–AgInSe2 quantum dots for hydrogen production

2020 ◽  
Vol 8 (26) ◽  
pp. 13142-13149 ◽  
Author(s):  
Ping-Yen Hsieh ◽  
Tatsuya Kameyama ◽  
Takayuki Takiyama ◽  
Ko Masuoka ◽  
Takahisa Yamamoto ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Quantum Yield ◽  
Hydrogen Production ◽  
Visible Light ◽  
Apparent Quantum Yield ◽  
Visible Light Driven

Alloyed ZnSe–AgInSe2 quantum dots were used as a photocatalyst for H2 production, showing an apparent quantum yield of 3.4% at 600 nm.

A cocatalyst-free Eosin Y-sensitized p-type of Co3O4 quantum dot for highly efficient and stable visible-light-driven water reduction and hydrogen production

2015 ◽  
Vol 17 (33) ◽  
pp. 21397-21400 ◽  
Author(s):  
Ning Zhang ◽  
Jinwen Shi ◽  
Fujun Niu ◽  
Jian Wang ◽  
Liejin Guo
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Quantum Dot ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Eosin Y ◽  
Water Reduction ◽  
Visible Light Driven ◽  
P Type

Eosin Y/p-Co3O4 quantum dots: a system with a high and stable photocatalytic activity for water reduction under visible-light irradiation without any cocatalyst.

Hyperbranched Conjugated Polymer Dots: The Enhanced Photocatalytic Activity for Visible Light-Driven Hydrogen Production

2019 ◽  
Vol 52 (11) ◽  
pp. 4376-4384 ◽  
Author(s):  
Peng Zhao ◽  
Lijie Wang ◽  
Yusen Wu ◽  
Tao Yang ◽  
Yun Ding ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Visible Light ◽  
Conjugated Polymer ◽  
Polymer Dots ◽  
Visible Light Driven

Photocatalysis and solar hydrogen production

2007 ◽  
Vol 79 (11) ◽  
pp. 1917-1927 ◽  
Author(s):  
Akihiko Kudo
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Band Gap ◽  
Water Splitting ◽  
Environmental Issues ◽  
Apparent Quantum Yield ◽  
Solar Hydrogen ◽  
Visible Light Driven ◽  
Solar Hydrogen Production ◽  
Narrow Band Gap Semiconductors

Photocatalytic water splitting is a challenging reaction because it is an ultimate solution to energy and environmental issues. Recently, many new powdered photocatalysts for water splitting have been developed. For example, a NiO (0.2 wt %)/NaTaO3:La (2 %) photocatalyst with a 4.1-eV band gap showed high activity for water splitting into H2 and O2 with an apparent quantum yield of 56 % at 270 nm. Overall water splitting under visible light irradiation has been achieved by construction of a Z-scheme photocatalysis system employing visible-light-driven photocatalysts, Ru/SrTiO3:Rh and BiVO4 for H2 and O2 evolution, and an Fe3+/Fe2+ redox couple as an electron relay. Moreover, highly efficient sulfide photocatalysts for solar hydrogen production in the presence of electron donors were developed by making solid solutions of ZnS with AgInS2 and CuInS2 of narrow band gap semiconductors. Thus, the database of powdered photocatalysts for water splitting has become plentiful.

Highly-efficient cocatalyst-free H2-evolution over silica-supported CdS nanoparticle photocatalysts under visible light

2015 ◽  
Vol 51 (53) ◽  
pp. 10676-10679 ◽  
Author(s):  
Guiyang Yu ◽  
Longlong Geng ◽  
Shujie Wu ◽  
Wenfu Yan ◽  
Gang Liu
Keyword(s):  
Quantum Yield ◽  
Visible Light ◽  
Light Illumination ◽  
H2 Evolution ◽  
Apparent Quantum Yield ◽  
Highly Efficient ◽  
Cds Nanoparticle ◽  
Visible Light Driven

A silica-supported CdS nanoparticle photocatalyst exhibits excellent visible-light driven H2evolution activity without the use of a cocatalyst. The apparent quantum yield can reach 42% under 420 nm light illumination.

scholarly journals Ag2S quantum dots in situ coupled to hexagonal SnS2 with enhanced photocatalytic activity for MO and Cr(vi) removal

RSC Advances ◽  
2017 ◽  
Vol 7 (74) ◽  
pp. 46823-46831 ◽  
Author(s):  
Jie Liu ◽  
Liquan Jing ◽  
Guofang Gao ◽  
Yuanguo Xu ◽  
Meng Xie ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Composite Photocatalyst ◽  
Highly Efficient ◽  
Visible Light Driven ◽  
Ag2s Quantum Dots

A highly efficient visible-light-driven composite photocatalyst of Ag2S quantum dots coupled to hexagonal SnS2 exhibited considerably increased photocatalytic activity for MO and Cr(vi) removal.

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