A facile and efficient preparation of anatase titania nanoparticles in micelle nanoreactors: morphology, structure, and their high photocatalytic activity under UV light illumination

RSC Advances ◽  
2014 ◽  
Vol 4 (99) ◽  
pp. 56406-56414 ◽  
Author(s):  
Reza Abazari ◽  
Ali Reza Mahjoub ◽  
Soheila Sanati
Keyword(s):  
Photocatalytic Activity ◽  
Ultraviolet Light ◽  
Uv Light ◽  
High Photocatalytic Activity ◽  
Light Irradiation ◽  
Titania Nanoparticles ◽  
Light Illumination ◽  
Anatase Titania ◽  
Ultraviolet Light Irradiation

Comparative photocatalysis degradation of MB dye under ultraviolet light irradiation: (a) without photocatalyst; (b) commercial P25 TiO2 powder; and (c) TiO2 nanoparticles.

Photocatalytic Activity of Bismuth Layered Perovskite Treated with Acid

2009 ◽  
Vol 421-422 ◽  
pp. 554-557
Author(s):  
Soihiro Watanabe ◽  
Yousuke Narumi ◽  
Kenji Toda ◽  
Tadashi Ishigaki ◽  
Kazuyoshi Uematsu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Acid Treatment ◽  
Uv Light ◽  
High Photocatalytic Activity ◽  
Light Irradiation ◽  
Layered Perovskite ◽  
O2 Evolution ◽  
Water Decomposition ◽  
H2 Evolution ◽  
Uv Light Irradiation

We synthesized Sr0.7La0.2[ ]0.1Bi2Ta2O9 (SBTL , [ ] vacancy), and measured their photocatalytic activity for water decomposition under UV light irradiation after acid treatment. They showed the high photocatalytic activity under UV light irradiation (H2 evolution (213μmol / h) , O2 evolution (82μmol / h)).

Influence of annealing temperature on morphological and photocatalytic activity of sputter-coated CaCu3Ti4O12 thin film under ultraviolet light irradiation

2019 ◽  
Vol 45 (16) ◽  
pp. 20697-20703 ◽  
Author(s):  
Mohsen Ahmadipour ◽  
Mohammad Arjmand ◽  
Siti Nor Qurratu Aini Abd Aziz ◽  
Sin Ling Chiam ◽  
Zainal Arifin Ahmad ◽  
...  
Keyword(s):  
Thin Film ◽  
Photocatalytic Activity ◽  
Ultraviolet Light ◽  
Annealing Temperature ◽  
Light Irradiation ◽  
Ultraviolet Light Irradiation

scholarly journals Preparation and Photocatalytic Properties of N-Doped Graphene/TiO2 Composites

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Jing Liu ◽  
Kun-Yu Chen ◽  
Jie Wang ◽  
Min Du ◽  
Zheng-Yang Gao ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Adsorption Capacity ◽  
Ultraviolet Light ◽  
Diffuse Reflectance Spectroscopy ◽  
Photogenerated Electron ◽  
Light Irradiation ◽  
Electron Hole ◽  
X Ray ◽  
Ultraviolet Light Irradiation ◽  
Doped Graphene

N-doped graphene (NG)/TiO2 composites were prepared by a two-step hydrothermal method using HF as the surface etchant and urea as the nitrogen source. The morphology, structure, and bonding conditions of the NG/TiO2 composites were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, UV-visible diffuse reflectance spectroscopy (UV-Vis DRS), and photoluminescence (PL) spectroscopy. The effects of NG on the lifetime of photogenerated electron-hole pairs, adsorption capacity, and photocatalytic activity of the composite photocatalysts were also investigated. The photocatalytic activity was evaluated under ultraviolet light and sunlight irradiation. The recovery testing was completed under ultraviolet light irradiation. The results show that TiO2 was uniformly loaded on the NG surface by chemical bonding. The introduction of NG effectively inhibited the recombination of photogenerated electron-hole pairs and improved both the adsorption capacity and photocatalytic activity of the composites. The 7 wt % NG/TiO2 showed the best adsorption capacity of methyl orange (MO). The best photocatalytic activity occurred for 5 wt % NG/TiO2 composites, and after four recovery tests, the photocatalytic degradation of MO under 60 min ultraviolet light irradiation exceeded 90%.

Microstructure Evolution Induced by Ultraviolet Light Irradiation in Ti-Si Codoped Diamond-like Carbon films

2014 ◽  
Vol 29 (9) ◽  
pp. 941
Author(s):  
JIANG Jin-Long ◽  
WANG Qiong ◽  
HUANG Hao ◽  
ZHANG Xia ◽  
WANG Yu-Bao ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Microstructure Evolution ◽  
Carbon Films ◽  
Light Irradiation ◽  
Diamond Like Carbon ◽  
Ultraviolet Light Irradiation

Low-Temperature Growth of Ferroelectric Hf0.5Zr0.5O2 Thin Films Assisted by Deep Ultraviolet Light Irradiation

2021 ◽  
Vol 3 (3) ◽  
pp. 1244-1251
Author(s):  
Hyunjin Joh ◽  
Gopinathan Anoop ◽  
Won-June Lee ◽  
Dipjyoti Das ◽  
Jun Young Lee ◽  
...  
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Ultraviolet Light ◽  
Light Irradiation ◽  
Temperature Growth ◽  
Low Temperature Growth ◽  
Ultraviolet Light Irradiation ◽  
Deep Ultraviolet
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