Mesoporous assembled structures of Cu2O and TiO2nanoparticles for highly efficient photocatalytic hydrogen generation from water

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 54848-54855 ◽  
Author(s):  
I. Tamiolakis ◽  
I. T. Papadas ◽  
K. C. Spyridopoulos ◽  
G. S. Armatas
Keyword(s):  
Visible Light ◽  
Surface Area ◽  
Hydrogen Evolution ◽  
Hydrogen Generation ◽  
Internal Surface ◽  
Internal Surface Area ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Efficient ◽  
Photocatalytic Hydrogen Generation ◽  
Uv Visible

Mesoporous assemblies of Cu2O/TiO2nanoparticle heterojunctions, which have a large internal surface area and narrow-sized pores, show highly efficient and robust photocatalytic hydrogen evolution from water using UV-visible light.

scholarly journals In situ synthesis of g-C3N4/TiO2 heterostructures with enhanced photocatalytic hydrogen evolution under visible light

RSC Advances ◽  
2017 ◽  
Vol 7 (64) ◽  
pp. 40327-40333 ◽  
Author(s):  
Hui Zhang ◽  
Feng Liu ◽  
Hao Wu ◽  
Xin Cao ◽  
Jianhua Sun ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Hydrogen Generation ◽  
In Situ Synthesis ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Photocatalytic Hydrogen Generation ◽  
Novel Method

C3N4 nanosheets/TiO2 nano-heterostructures have been synthesized via a novel method, exhibiting excellent photocatalytic hydrogen generation under visible light irradiation.

scholarly journals Band Engineering and Morphology Control of Oxygen-Incorporated Graphitic Carbon Nitride Porous Nanosheets for Highly Efficient Photocatalytic Hydrogen Evolution

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Yunyan Wu ◽  
Pan Xiong ◽  
Jianchun Wu ◽  
Zengliang Huang ◽  
Jingwen Sun ◽  
...  
Keyword(s):  
Surface Area ◽  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Separation Efficiency ◽  
Physical Adsorption ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Hydrogen Evolution ◽  
Band Engineering ◽  
Highly Efficient

AbstractGraphitic carbon nitride (g-C3N4)-based photocatalysts have shown great potential in the splitting of water. However, the intrinsic drawbacks of g-C3N4, such as low surface area, poor diffusion, and charge separation efficiency, remain as the bottleneck to achieve highly efficient hydrogen evolution. Here, a hollow oxygen-incorporated g-C3N4 nanosheet (OCN) with an improved surface area of 148.5 m2 g−1 is fabricated by the multiple thermal treatments under the N2/O2 atmosphere, wherein the C–O bonds are formed through two ways of physical adsorption and doping. The physical characterization and theoretical calculation indicate that the O-adsorption can promote the generation of defects, leading to the formation of hollow morphology, while the O-doping results in reduced band gap of g-C3N4. The optimized OCN shows an excellent photocatalytic hydrogen evolution activity of 3519.6 μmol g−1 h−1 for ~ 20 h, which is over four times higher than that of g-C3N4 (850.1 μmol g−1 h−1) and outperforms most of the reported g-C3N4 catalysts.

D–π–A-type triphenylamine dye covalent-functionalized g-C3N4 for highly efficient photocatalytic hydrogen evolution

2020 ◽  
Vol 10 (6) ◽  
pp. 1609-1618 ◽  
Author(s):  
Chao Zhang ◽  
Jiandong Liu ◽  
Xingliang Liu ◽  
Shiai Xu
Keyword(s):  
Reaction Mechanism ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Efficient

Reaction mechanism for the higher photocatalytic performance of H2 production of g-C3N4NSs/TC1 under visible light irradiation (λ ≥ 400 nm).

scholarly journals Few-layered CuInP2S6 nanosheet with sulfur vacancy boosting photocatalytic hydrogen evolution

CrystEngComm ◽  
2021 ◽  
Author(s):  
Peng Yu ◽  
Fengmei Wang ◽  
Jun Meng ◽  
Tofik Ahmed Shifa ◽  
Marshet Getaye Sendeku ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Generation ◽  
Sulfur Vacancy ◽  
Photocatalytic Hydrogen Evolution ◽  
Photocatalytic Hydrogen Generation

Uniform few-layered CuInP2S6 nanosheets and microsheets were initially synthesized and utilized as photocatalysts towards photocatalytic hydrogen generation.

scholarly journals High-throughput Production of ZnO-MoS2-Graphene Heterostructures for Highly Efficient Photocatalytic Hydrogen Evolution

Materials ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2233 ◽  
Author(s):  
Haocong Dong ◽  
Junzhu Li ◽  
Mingguang Chen ◽  
Hongwei Wang ◽  
Xiaochuan Jiang ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
High Throughput ◽  
Hydrogen Generation ◽  
Synergistic Effects ◽  
Industrial Applications ◽  
High Electron ◽  
Photocatalytic Efficiency ◽  
Highly Efficient ◽  
High Efficient

High-throughput production of highly efficient photocatalysts for hydrogen evolution remains a considerable challenge for materials scientists. Here, we produced extremely uniform high-quality graphene and molybdenum disulfide (MoS2) nanoplatelets through the electrochemical-assisted liquid-phase exfoliation, out of which we subsequently fabricated MoS2/graphene van der Waals heterostructures. Ultimately, zinc oxide (ZnO) nanoparticles were deposited into these two-dimensional heterostructures to produce an artificial ZnO/MoS2/graphene nanocomposite. This new composite experimentally exhibited an excellent photocatalytic efficiency in hydrogen evolution under the sunlight illumination ( λ > 400   n m ), owing to the extremely high electron mobilities in graphene nanoplatelets and the significant visible-light absorptions of MoS2. Moreover, due to the synergistic effects in MoS2 and graphene, the lifetime of excited carriers increased dramatically, which considerably improved the photocatalytic efficiency of the ZnO/MoS2/graphene heterostructure. We conclude that the novel artificial heterostructure presented here shows great potential for the high-efficient photocatalytic hydrogen generation and the high throughput production of visible-light photocatalysts for industrial applications.

Nanocomposites of AgInZnS and graphene nanosheets as efficient photocatalysts for hydrogen evolution

Nanoscale ◽  
2015 ◽  
Vol 7 (44) ◽  
pp. 18498-18503 ◽  
Author(s):  
Xiaosheng Tang ◽  
Weiwei Chen ◽  
Zhiqiang Zu ◽  
Zhigang Zang ◽  
Ming Deng ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Graphene Nanosheets ◽  
Light Irradiation ◽  
Hydrothermal Route ◽  
Graphene Nanocomposites ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Efficient ◽  
Reduced Graphene

AgInZnS–reduced graphene nanocomposites with highly efficient photocatalytic hydrogen evolution activity under visible-light irradiation were synthesized by a simple hydrothermal route.

Vanadium carbide: an efficient, robust, and versatile cocatalyst for photocatalytic hydrogen evolution under visible light

2019 ◽  
Vol 55 (48) ◽  
pp. 6870-6873 ◽  
Author(s):  
Lei Tian ◽  
Shixiong Min ◽  
Yonggang Lei ◽  
Shasha Chen ◽  
Fang Wang
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Vanadium Carbide ◽  
Photocatalytic Hydrogen Evolution ◽  
Highly Efficient

Vanadium carbide (VC) can serve as a highly efficient, robust, and versatile cocatalyst for photocatalytic hydrogen evolution under visible light.

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