Nonaqueous synthesis of CoOx/TiO2 nanocomposites showing high photocatalytic activity of hydrogen generation

2013 ◽  
Vol 142-143 ◽  
pp. 626-632 ◽  
Author(s):  
Yu-Fen Wang ◽  
Meng-Chun Hsieh ◽  
Jyh-Fu Lee ◽  
Chia-Min Yang
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Generation ◽  
High Photocatalytic Activity ◽  
Nonaqueous Synthesis

Preparation of 1D ultrathin niobate nanobelts by liquid exfoliation as photocatalysts for hydrogen generation

2019 ◽  
Vol 55 (17) ◽  
pp. 2417-2420
Author(s):  
Fangrui Cheng ◽  
Xin Jiang ◽  
Zepeng Zhang ◽  
Renzhi Ma ◽  
Takayoshi Sasaki ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Driving Force ◽  
Hydrogen Generation ◽  
High Photocatalytic Activity ◽  
One Dimensional ◽  
Liquid Exfoliation ◽  
Hydrolysis Of

The original driving force for the exfoliation of RbNbO3 to form one-dimensional (1D) niobate nanobelts is the combination of the hydration of Rb+ and the hydrolysis of (NbO3)nn− and the 1D ultrathin nanobelts show high photocatalytic activity.

Visible light-induced hydrogen generation using colloidal (ZnS)0.4(AgInS2)0.6 nanocrystals capped by S2− ions

2015 ◽  
Vol 3 (16) ◽  
pp. 8276-8279 ◽  
Author(s):  
Metikoti Jagadeeswararao ◽  
Sunita Dey ◽  
Angshuman Nag ◽  
C. N. R. Rao
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Generation ◽  
High Photocatalytic Activity ◽  
Co Catalyst ◽  
Visible Light Active

Non-toxic and visible-light active S2−-capped (ZnS)0.4(AgInS2)0.6 nanocrystals exhibit high photocatalytic activity for H2 evolution from water without requiring any co-catalyst.

scholarly journals Infrared response in photocatalytic polymeric carbon nitride for water splitting via an upconversion mechanism

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Zhengyuan Jin ◽  
Xiantao Jiang ◽  
Qitao Zhang ◽  
Shaolong Huang ◽  
Luhong Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Water Splitting ◽  
Carbon Nitride ◽  
Hydrogen Generation ◽  
Matrix Ring ◽  
High Photocatalytic Activity ◽  
Infrared Light ◽  
Hydrogen Energy ◽  
Polymeric Carbon

AbstractBroad-spectrum light activation in photocatalytic materials is considered vital for effective solar-to-hydrogen energy conversion. Here, we propose an upconversion process in oxygen-doped polymeric carbon nitride (C3N4) nanosheets, resulting in high photocatalytic activity for hydrogen generation from water splitting under infrared light irradiation. Due to the upconversion, the photoexcited electrons are transferred to the conduction band, and a σ* carbon-oxygen orbital localized on the triazine matrix ring resulting from oxygen doping extends the lifetime of photogenerated electrons, which increases the photocatalytic activity under both infrared and visible light. Our material exhibits high apparent quantum efficiency of 0.014% and 23% at 850 nm and 420 nm, respectively. Under infrared light (λ ≥ 800 nm, 24 mW cm−2), the hydrogen production rate of our material is 22.84 μmol h−1 g−1, which can reach a yield similar to that of pristine C3N4 under visible light.

A copper anchored on phosphorus g-C3N4 as a highly efficient photocatalyst for synthesis of N-arylpyridin-2-amines

2021 ◽  
Author(s):  
Jia-Qi Di ◽  
Mo Zhang ◽  
Yu-Xuan Chen ◽  
Jin-Xin Wang ◽  
Shan-Shan Geng ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Recyclable Catalyst ◽  
Highly Efficient ◽  
Phosphorus Doped

A heterogeneous photocatalyst based on copper modified phosphorus doped g-C3N4 (Cu/P-CN) has been prepared and characterized. This recyclable catalyst exhibited high photocatalytic activity for the synthesis of N-arylpyridin-2-amine derivatives by...

Carbon Nitride Functionalized with Sb Resulting in High Photocatalytic Activity

2021 ◽  
Author(s):  
Luhong Zhang ◽  
Zhengyuan Jin ◽  
Jiyu Huang ◽  
Yiyue Zhang ◽  
Shaolong Huang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Carbon Nitride ◽  
High Photocatalytic Activity

Engineering Nanocrystalline Titania Thin Films for High Photocatalytic Activity

2019 ◽  
Vol 9 ◽  
pp. 621-626 ◽  
Author(s):  
Vijila Kalarivalappil ◽  
Baiju K.Vijayan ◽  
Viswanathan Kumar
Keyword(s):  
Thin Films ◽  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Nanocrystalline Titania

scholarly journals Study of the Effect of TiO2 Layer on the Adsorption and Photocatalytic Activity of TiO2-MoS2 Heterostructures under Visible-Infrared Light

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
N. Cruz-González ◽  
O. Calzadilla ◽  
J. Roque ◽  
F. Chalé-Lara ◽  
J. K. Olarte ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Photocatalytic Activity ◽  
Photoelectron Spectroscopy ◽  
Diffuse Reflectance Spectroscopy ◽  
Nitrogen Adsorption ◽  
High Photocatalytic Activity ◽  
Infrared Light ◽  
Polluted Water ◽  
Light Spectrum ◽  
X Ray

In the last decade, the urgent need to environmental protection has promoted the development of new materials with potential applications to remediate air and polluted water. In this work, the effect of the TiO2 thin layer over MoS2 material in photocatalytic activity is reported. We prepared different heterostructures, using a combination of electrospinning, solvothermal, and spin-coating techniques. The properties of the samples were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction (XRD), nitrogen adsorption-desorption isotherms, UV-Vis diffuse reflectance spectroscopy (UV-Vis-DRS), and X-ray photoelectron spectroscopy (XPS). The adsorption and photocatalytic activity were evaluated by discoloration of rhodamine B solution. The TiO2-MoS2/TiO2 heterostructure presented three optical absorption edges at 1.3 eV, 2.28 eV, and 3.23 eV. The high adsorption capacity of MoS2 was eliminated with the addition of TiO2 thin film. The samples show high photocatalytic activity in the visible-IR light spectrum.

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