Templated synthesis of atomically thin platy hematite nanoparticles within a layered silicate exhibiting efficient photocatalytic activity

2018 ◽  
Vol 6 (12) ◽  
pp. 5166-5171 ◽  
Author(s):  
Durai Mani ◽  
Nao Tsunoji ◽  
Yusuke Yumauchi ◽  
Mukannan Arivanandhan ◽  
Ramasamy Jayavel ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Iron Oxides ◽  
Layered Silicate ◽  
High Photocatalytic Activity ◽  
Hematite Nanoparticles ◽  
Templated Synthesis ◽  
Co Catalysts

In contrast to usual iron oxides, atomically-thin hematite nanoplates synthesized within a layered silicate show significantly high photocatalytic activity without any co-catalysts.

Bio-templated synthesis of hierarchically ordered macro-mesoporous anatase titanium dioxide flakes with high photocatalytic activity

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15572-15578 ◽  
Author(s):  
Bing Li ◽  
Jianquan Zhao ◽  
Jing Liu ◽  
Xinyu Shen ◽  
Shaobo Mo ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Templated Synthesis ◽  
Rose Petals

Hierarchically ordered macro-mesoporous anatase TiO2 flakes were synthesized by using rose petals and P123 as dual templates with high photocatalytic activity.

scholarly journals One-pot Synthesis of Carbon-doped TiO2 with Bimetallic Ni-Ag co-catalysts in Photodegradation of Methylene Blue under UV and Visible Irradiation

2019 ◽  
Vol 15 (1) ◽  
pp. 35-42
Author(s):  
Kurnia Putri ◽  
Annisa Annisa ◽  
Sadang Husain ◽  
Rodiansono Rodiansono
Keyword(s):  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Main Phase ◽  
Molar Ratio ◽  
Visible Range ◽  
Hydrothermal Conditions ◽  
One Pot ◽  
Tio2 Sample ◽  
Co Catalyst ◽  
Co Catalysts

Carbon modified-titanium dioxide (@C-TiO2) was prepared by one-pot procedure from TiCl4 and glucose under hydrothermal conditions at 150 ºC for 24 hours. The obtained @C-TiO2 was employed as support for Ni-Ag(3.0)@C-TiO2 nanocomposite (3.0 is the Ni/Ag molar ratio). The synthesized catalysts were characterized by means of XRD and UV-Vis DRS Spectroscopy. The XRD patterns of @TiO2 show the brookite as the main phase, meanwhile the main phase in the @C-TiO2, Ni-Ag(3.0)@TiO2 and Ni-Ag(3.0)@C-TiO2 nanocomposites were anatase. The band gap of the TiO2 sample slightly shifted to the visible range after the addition of C dopant or Ni-Ag(3.0) co-catalyst as indicated by UV-Vis DRS spectra. Ni-Ag(3.0)@C-TiO2 catalyst showed high photocatalytic activity for photodegradation of MB under both UV and visible irradiations at 60 ºC within 2 hours with maximum MB conversion of 67.5% and 54.1%, respectively. The synergistic action of C dopant or Ni-Ag(3.0) co-catalyst is believed to be important in the improvement of photocatalytic activity of @TiO2. Copyright ©2019 BCREC Group. All rights reserved 

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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