Preparation of a novel nanocomposite NaLuF4:Gd,Yb,Tm@SiO2@Ag@TiO2 with high photocatalytic activity driven by simulated solar light

2016 ◽  
Vol 45 (4) ◽  
pp. 1467-1475 ◽  
Author(s):  
Dongguang Yin ◽  
Lu Zhang ◽  
Xianzhang Cao ◽  
Zhiwen Chen ◽  
Jingxiu Tang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Solar Light ◽  
Simulated Solar Light ◽  
First Time

A novel nanocomposite photocatalyst NaLuF4:Gd,Yb,Tm@SiO2@Ag@TiO2 was developed for the first time.

Facile Fabrication and Efficient Photocatalytic Activity of 3D-Ordered Macroporous ZnO Film

2012 ◽  
Vol 509 ◽  
pp. 259-265
Author(s):  
Hao Xie ◽  
Tao Zeng ◽  
Xue Lai Wang ◽  
Xiu Jian Zhao
Keyword(s):  
Photocatalytic Activity ◽  
Solar Light ◽  
Latex Film ◽  
Layer By Layer ◽  
X Ray Diffraction ◽  
Zno Film ◽  
Visible Absorption ◽  
Simulated Solar Light ◽  
Facile Fabrication ◽  
Ordered Macroporous

Three-dimensionally (3D) ordered macroporous ZnO film was fabricated on a glass slide by layer-by-layer depositing and hydrolysis of Zn(CH3COO)2using 3D-ordered latex film as template followed by calcination at 450 °C for 2 h to remove the organic template. The as-prepared 3D-ordered macroporous ZnO film was characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), diffusive reflectance UV-visible absorption spectra (DRUV-VIS), photoluminescence (PL), and photoelectrochemical measurement. Its photocatalytic activity was evaluated by the photocatalytic degradation of crystal violet (CV) aqueous solution at ambient temperature under the irradiation of simulated solar light. It was found that the 3D-ordered ZnO film exhibits efficient photocatalytic activity for photodegradation of CV under the irradiation of simulated solar light.

ZnO Photocatalysts Modified with Eu2O3 and Sm2O3

2020 ◽  
Vol 850 ◽  
pp. 35-40
Author(s):  
Pāvels Rodionovs ◽  
Jānis Grabis
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Hydrothermal Method ◽  
High Photocatalytic Activity ◽  
Solar Light ◽  
Effect Of Ph ◽  
Microwave Assisted ◽  
Bet Analysis

In this study ZnO photocatalysts with different loading of Eu2O3 and Sm2O3 were prepared vie microwave-assisted hydrothermal method. The prepared samples were investigated by using XRD, SEM and BET analysis. The photocatalytic activity was determined by degradation of methylene blue (MB) under Osram Vitalux illumination. Prepared ZnO photocatalysts shown high photocatalytic activity under solar light simulated radiation. After 30 minute of irradiation more than 95 % of initial MB solution was degraded. The effect of pH and photocatalyst dosage was investigated. The reusability of photocatalysts was also studied.

Nonmetal–metal–semiconductor-promoted P/Ag/Ag2O/Ag3PO4/TiO2 photocatalyst with superior photocatalytic activity and stability

2015 ◽  
Vol 3 (34) ◽  
pp. 17858-17865 ◽  
Author(s):  
Xiaohong Hu ◽  
Qi Zhu ◽  
Xinlong Wang ◽  
Naoki Kawazoe ◽  
Yingnan Yang
Keyword(s):  
Photocatalytic Activity ◽  
Sol Gel ◽  
Light Irradiation ◽  
Solar Light ◽  
Tio2 Photocatalyst ◽  
Photocatalytic Ability ◽  
Composite Photocatalyst ◽  
Gel Method ◽  
Simulated Solar Light ◽  
Solar Light Irradiation

P/Ag/Ag2O/Ag3PO4/TiO2 composite photocatalyst has been successfully prepared by a sol–gel method. It shows highly enhanced photocatalytic ability and stability under simulated solar light irradiation.

Preparation and Enhanced Photocatalytic Activity of AgCl-TiO2 Composite under Simulated Solar Light

2013 ◽  
Vol 807-809 ◽  
pp. 557-561 ◽  
Author(s):  
Wen Tao Yi ◽  
Chun Yan Yan ◽  
Peng Yan ◽  
Shu Yin Liu
Keyword(s):  
Photocatalytic Activity ◽  
Diffuse Reflectance Spectroscopy ◽  
Spectral Response ◽  
Visible Region ◽  
Reaction Model ◽  
Solar Light ◽  
Cubic Phase ◽  
Pseudo First Order Reaction ◽  
Simulated Solar Light ◽  
Bet Analysis

AgCl-TiO2 nanocomposites with a core-shell structure were successfully prepared by hydrothermal treatment. And the products were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), Brunauer Emmett teller (BET) Analysis, and UV-vis diffuse reflectance spectroscopy (DRS). It is found that the composites consist of anatase TiO2 and cubic phase AgCl, which has higher surface area, stronger spectral response in visible region compared with pure TiO2. The photocatalytic activity of these samples was evaluated by photocatalytic decoloration of methyl orange (MO) under simulated solar light. The results show AgCl-TiO2 composite has much higher photocatalytic activity than that of pure TiO2, and it also has very good stability. The kinetic study showed that this photocatalytic process coincided with the Langmuir-Hinshelwood (L-H) pseudo first order reaction model.

Photocatalytic activity of TiO2-coated glass raschig rings on the degradation of phenolic derivatives under simulated solar light irradiation

2013 ◽  
Vol 224 ◽  
pp. 32-38 ◽  
Author(s):  
Maria J. Sampaio ◽  
Cláudia G. Silva ◽  
Adrián M.T. Silva ◽  
Vitor J.P. Vilar ◽  
Rui A.R. Boaventura ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Light Irradiation ◽  
Solar Light ◽  
Coated Glass ◽  
Simulated Solar Light ◽  
Solar Light Irradiation ◽  
Phenolic Derivatives
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