Enhanced visible-light photocatalytic hydrogen production activity of three-dimensional mesoporous p-CuS/n-CdS nanocrystal assemblies

2017 ◽  
Vol 4 (3) ◽  
pp. 433-441 ◽  
Author(s):  
Ioannis Vamvasakis ◽  
Adelais Trapali ◽  
Jianwei Miao ◽  
Bin Liu ◽  
Gerasimos S. Armatas
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
High Performance ◽  
Hydrogen Generation ◽  
High Surface ◽  
Three Dimensional ◽  
Surface Areas ◽  
Photocatalytic Hydrogen Generation ◽  
Production Activity ◽  
Visible Light Photocatalytic

Mesoporous assemblies of p-CuS/n-CdS nanocrystal junctions with high surface areas and uniform pores demonstrate a high performance and stability in photocatalytic hydrogen generation from water using visible light.

Novel carbon-incorporated porous ZnFe2O4nanospheres for enhanced photocatalytic hydrogen generation under visible light irradiation

RSC Advances ◽  
2016 ◽  
Vol 6 (61) ◽  
pp. 56069-56076 ◽  
Author(s):  
Hekai Zhu ◽  
Minghao Fang ◽  
Zhaohui Huang ◽  
Yan'gai Liu ◽  
Kai Chen ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Hydrogen Generation ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Production ◽  
Photocatalytic Hydrogen Generation ◽  
Production Activity

Surface hybridization of ZnFe2O4nanospheres with graphite-like carbon layers yields enhanced photocatalytic hydrogen production activity.

Enhanced visible light photocatalytic hydrogen production activity of CuS/ZnS nanoflower spheres

2015 ◽  
Vol 3 (26) ◽  
pp. 13913-13919 ◽  
Author(s):  
Yangping Hong ◽  
Jun Zhang ◽  
Feng Huang ◽  
Jiye Zhang ◽  
Xian Wang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Photocatalytic Hydrogen Production ◽  
Production Activity ◽  
Visible Light Photocatalytic

The ZnS nanoflower architectures reach a high visible light photocatalytic hydrogen production activity with the deposition of a small portion of CuS nanoparticles.

scholarly journals Ultrathin Ni(ii)-based coordination polymer nanosheets as a co-catalyst for promoting photocatalytic H2-production

2019 ◽  
Vol 55 (46) ◽  
pp. 6499-6502 ◽  
Author(s):  
Zhi-Qiang Jiang ◽  
Xing-Liang Chen ◽  
Jin Lu ◽  
Yu-Feng Li ◽  
Tian Wen ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Coordination Polymer ◽  
Visible Light ◽  
H2 Production ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Production ◽  
Co Catalysts ◽  
Production Activity ◽  
Visible Light Photocatalytic

The Ni(ii) coordination polymer nanosheets were successfully exfoliated, which can be used as co-catalysts (Ni-CPNS@CdS). The optimized Ni-CPNS@CdS catalyst showed a super high visible-light photocatalytic hydrogen production activity.

Hierarchical 3D NiO–CdS heteroarchitecture for efficient visible light photocatalytic hydrogen generation

2012 ◽  
Vol 22 (24) ◽  
pp. 12090 ◽  
Author(s):  
Ziyauddin Khan ◽  
Momina Khannam ◽  
Natarajan Vinothkumar ◽  
Mahuya De ◽  
Mohammad Qureshi
Keyword(s):  
Visible Light ◽  
Hydrogen Generation ◽  
Photocatalytic Hydrogen Generation ◽  
Visible Light Photocatalytic

(Invited) Nanoscale Design and Modification of Plasmonic Aerogels for Photocatalytic Hydrogen Generation

2018 ◽  
Vol MA2018-01 (31) ◽  
pp. 1871-1871
Author(s):  
Jeremy Pietron ◽  
Paul A. DeSario ◽  
Catherine L. Pitman ◽  
Todd Brintlinger ◽  
Adam Dunkelberger ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Generation ◽  
High Surface ◽  
High Surface Area ◽  
Solar Fuels ◽  
Metal Nanoparticle ◽  
Naval Research ◽  
Area Network ◽  
Photocatalytic Hydrogen Generation ◽  
Composite Aerogels

Composite catalytic aerogels comprise a highly-flexible design motif for the creation of solar fuels photocatalysts. We exploit the compositional and interfacial design flexibility of catalytic aerogels to couple surface plasmon resonant (SPR) guests to nanometric oxidation and reduction catalysts in one hierarchical photocatalytic composite architecture. In our composite aerogels, the nanoscale TiO2 aerogel acts as a 3D-interconnected network of nanowires that couples all of the functional elements required to photogenerate molecular hydrogen from visible light and water: visible light sensitization, electron and ion transport, and oxidation and reduction catalysis. We investigate the effects of synthetically modifying the TiO2 aerogel network and the nanoparticulate Au||TiO2 interfaces in plasmonic Au–TiO2 aerogels on light sensitization, carrier (electron–hole pair) generation, and photocatalytic H2 evolution under both broadband (i.e., UV + visible) and visible excitation. We also introduce oxidation and reduction co-catalyst nanoparticles into the plasmonic aerogels, creating composite aerogels that perform visible light SPR–driven photocatalytic reduction of water to generate H2. The nanostructured high surface–area network in the aerogel spatially and effectively separates charge while electrochemically connecting plasmonic nanoparticle sensitizers and metal nanoparticle all in one mesoscale architecture and at length scales compatible with the kinetics of each reaction. Reference: "Plasmonic aerogels as a 3D nanoscale platform for solar fuels photocatalysis.” P. A. DeSario, J. J. Pietron, A. Dunkelburger, T.H. Brintlinger, O. Baturina, R. M. Stroud, J. C. Owrutsky, and D. R. Rolison, Langmuir, 2017, 33, 9444–9454; doi: 10.1021/acs.langmuir.7b01117 This work is supported by the U.S. Office of Naval Research.

Photocatalytic hydrogen generation from water under visible light using core/shell nano-catalysts

2010 ◽  
Vol 61 (9) ◽  
pp. 2303-2308 ◽  
Author(s):  
X. Wang ◽  
K. Shih ◽  
X. Y. Li
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Production Rate ◽  
Hydrogen Generation ◽  
Nano Particles ◽  
Catalyst Loading ◽  
Core Shell ◽  
Hydrogen Production Rate ◽  
Photocatalytic Hydrogen Generation ◽  
Nano Catalysts

A microemulsion technique was employed to synthesize nano-sized photocatalysts with a core (CdS)/shell (ZnS) structure. The primary particles of the photocatalysts were around 10 nm, and the mean size of the catalyst clusters in water was about 100 nm. The band gaps of the catalysts ranged from 2.25 to 2.46 eV. The experiments of photocatalytic H2 generation showed that the catalysts (CdS)x/(ZnS)1−x with x ranging from 0.1 to 1 were able to produce hydrogen from water photolysis under visible light. The catalyst with x = 0.9 had the highest rate of hydrogen production. The catalyst loading density also influenced the photo-hydrogen production rate, and the best catalyst concentration in water was 1 g L−1. The stability of the nano-catalysts in terms of size, morphology and activity was satisfactory during an extended test period for a specific hydrogen production rate of 2.38 mmol g−1 L−1 h−1 and a quantum yield of 16.1% under visible light (165 W Xe lamp, λ > 420 nm). The results demonstrate that the (CdS)/(ZnS) core/shell nano-particles are a novel photo-catalyst for renewable hydrogen generation from water under visible light. This is attributable to the large band-gap ZnS shell that separates the electron/hole pairs generated by the CdS core and hence reduces their recombinations.

Ferroelectric enhanced Z-scheme P-doped g-C3N4/PANI/BaTiO3 ternary heterojunction with boosted visible-light photocatalytic water splitting

2019 ◽  
Vol 43 (17) ◽  
pp. 6753-6764 ◽  
Author(s):  
Qiannan Li ◽  
Yuguo Xia ◽  
Kangliang Wei ◽  
Xiaotong Ding ◽  
Shun Dong ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Water Splitting ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Photocatalytic Water Splitting ◽  
Surface Polarization ◽  
Production Activity ◽  
Charge Separation Efficiency ◽  
Visible Light Photocatalytic

Surface polarization promotes the charge separation efficiency of PCN/PANI/BTO ternary heterojunction, resulting in an enhanced visible-light photocatalytic hydrogen production activity.

Visible-Light Photocatalytic Hydrogen Generation by Using Dye-Sensitized Graphene Oxide as a Photocatalyst

2012 ◽  
Vol 18 (52) ◽  
pp. 16774-16783 ◽  
Author(s):  
Marcos Latorre-Sánchez ◽  
Cristina Lavorato ◽  
Marta Puche ◽  
Vicente Fornés ◽  
Raffaele Molinari ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Visible Light ◽  
Hydrogen Generation ◽  
Dye Sensitized ◽  
Photocatalytic Hydrogen Generation ◽  
Visible Light Photocatalytic
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