Connecting the surface structure, morphology and photocatalytic activity of Ag2O: An in depth and unified theoretical investigation

2020 ◽  
Vol 509 ◽  
pp. 145321 ◽  
Author(s):  
R.A.P. Ribeiro ◽  
M.C. Oliveira ◽  
M.R.D. Bomio ◽  
S.R. de Lazaro ◽  
J. Andrés ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Surface Structure ◽  
Theoretical Investigation ◽  
Structure Morphology

scholarly journals Effect of Drying Temprature on some Properties of Polymer Composite with Epoxy K-153 Matrix

2020 ◽  
Vol 36 (2) ◽  
Author(s):  
Nguyen Trung Thanh
Keyword(s):  
Epoxy Resin ◽  
Surface Structure ◽  
Thermal Oxidation ◽  
Oxidation Resistance ◽  
Polymer Composite ◽  
Polymer Composite Material ◽  
Drying Temperature ◽  
Temperature Changes ◽  
Resistance Surface ◽  
Structure Morphology

The article introduces the effects of drying temperature on curing level, thermal endurance, thermal oxidation resistance, surface structure morphology of polymer composite material based on K-153 epoxy resin (K-153 epoxy resin is made from ED-20 epoxy resin modified by thiokol and oligomer acrylate), T-13 glass fiber and hardener polyethylenepolyamine. The results show that the thermal endurance, thermal oxidation resistance, surface structure morphology of polymer composite change much when the drying temperature changes. When the drying temperature increases from 60°C to about 80°C, the structure of the polymer composites are tighter, the thermal endurance, thermal oxidation resistance also increases, however, if the drying temperature is continued to increase, these properties of the material will reduce.

Flower-like ZnO/ionic liquid composites: structure, morphology, and photocatalytic activity

Ionics ◽  
2018 ◽  
Vol 25 (7) ◽  
pp. 3197-3210 ◽  
Author(s):  
Letícia G. da Trindade ◽  
Letícia Zanchet ◽  
Aline B. Trench ◽  
Josiane Carneiro Souza ◽  
Maria H. Carvalho ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Photocatalytic Activity ◽  
Structure Morphology

Fluorine-Doped Titanium Dioxide: Synthesis, Structure, Morphology, Size and Photocatalytic Activity

2017 ◽  
pp. 17-24 ◽  
Author(s):  
Ekaterina M. Bayan ◽  
Timofey G. Lupeiko ◽  
Ekaterina V. Kolupaeva ◽  
Larisa E. Pustovaya ◽  
Aleksey G. Fedorenko
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Structure Morphology ◽  
Doped Titanium Dioxide

Preparation of Heterojunction Semiconductor SnS2/SnO2 with Enhanced Photocatalytic Properties

2013 ◽  
Vol 316-317 ◽  
pp. 1059-1062 ◽  
Author(s):  
Ping Chen ◽  
Ming Sheng Qin ◽  
Fu Qiang Huang
Keyword(s):  
Photocatalytic Activity ◽  
Single Phase ◽  
Near Infrared ◽  
Photocatalytic Performance ◽  
Chemical Compositions ◽  
X Ray Diffraction ◽  
Simple Method ◽  
X Ray ◽  
Structure Morphology ◽  
Nir Absorption

The Formation of Heterojunction Structure between Two Semiconductors Was Considered as an Effective Method to Enhance the Photocatalytic Activity. here, we Reported a Simple Method to Prepare SnS2/SnO2Heterojunction Photocatalysts by Annealing SnS2in Air. the Structure, Morphology, Chemical Compositions and Optical Properties of the Obtained Materials Were Characterized by the X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Energy-dispersive X-ray Spectroscopy (EDX) and Ultraviolet-visible-near Infrared (UV-Vis-NIR) Absorption Spectra. the Photocatalytic Investigations Showed the Composites Have Higher Photocatalytic Activity than the Single-phase SnS2. the SnS2Powder which Annealed at 400 °C for 60 Min Showed the Highest Photocatalytic Performance.

Structure, morphology and photocatalytic activity of Cu2O/Pt/TiO2 three-layered nanocomposite films

2014 ◽  
Vol 21 ◽  
pp. 26-32 ◽  
Author(s):  
Yiming Liu ◽  
Wanggang Zhang ◽  
Liping Bian ◽  
Wei Liang ◽  
Jianjun Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Nanocomposite Films ◽  
Structure Morphology

scholarly journals Photoelectrochemical and theoretical investigation of the photocatalytic activity of TiO2 : N

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89687-89698 ◽  
Author(s):  
Gabriela Byzynski Soares ◽  
Renan Augusto Pontes Ribeiro ◽  
Sergio Ricardo de Lazaro ◽  
Caue Ribeiro
Keyword(s):  
Photocatalytic Activity ◽  
Band Gap ◽  
Effective Mass ◽  
Theoretical Investigation ◽  
Hole Pair ◽  
Electron Hole ◽  
Electron Hole Pair ◽  
N Doping ◽  
Hole Recombination

In N-doping on TiO2 nanomaterial occurs a big decrease of band-gap (1 eV); however, its photocatalysis is low. We clarify such fact from effective mass, i.e., the electron–hole recombination is more than creation of electron–hole pair.

Preparation of Bi1-xLaxVO4 and its Photocatalytic Degradation on Rhodamine B

2016 ◽  
Vol 852 ◽  
pp. 1473-1476
Author(s):  
Yan Ding ◽  
Liang Fang Fu ◽  
Yu Huan Wang ◽  
Liang Chao Li ◽  
Juan Bi Li
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Degradation Rate ◽  
Light Sensitivity ◽  
Structure Morphology ◽  
Photocatalytic Activities ◽  
Testing Techniques ◽  
Composition Structure

A series of photocatalyst Bi1-xLaxVO4 (0.1, 0.3, 0.5, 0.7) powders were prepared by hydrothermal method. The composition, structure, morphology and photocatalytic activity of the samples were researched by means of modern testing techniques. Bi1-xLaxVO4 showed excellent visible-light sensitivity and photocatalytic activities. The degradation rate of sample with x = 0.5 on rhodamine B reached 90 %, which was much higher than that of pure BiVO4.

scholarly journals Hydrazine and Urea Fueled-Solution Combustion Method for Bi2O3 Synthesis: Characterization of Physicochemical Properties and Photocatalytic Activity

2019 ◽  
Vol 15 (1) ◽  
pp. 104-111 ◽  
Author(s):  
Yayuk Astuti ◽  
Prisca Putri Elesta ◽  
Didik Setyo Widodo ◽  
Hendri Widiyandari ◽  
Ratna Balgis
Keyword(s):  
Crystal Structure ◽  
Photocatalytic Activity ◽  
Bismuth Oxide ◽  
Rhodamine B ◽  
Combustion Method ◽  
High Photocatalytic Activity ◽  
Synthesis Process ◽  
Solution Combustion ◽  
Solution Combustion Method ◽  
Structure Morphology

Bismuth oxide synthesis using solution combustion method fuelled by hydrazine and urea has been conducted. This study aims to examine the effect of the applied fuels, urea and hydrazine, on product characteristics and photocatalytic activity in degrading rhodamine B dye. Bismuth oxide synthesis was initiated by dissolving bismuth nitrate pentahydrate (Bi(NO3)3.5H2O) in a nitric acid solvent. Fuel was added and then stirred. The solution formed was heated at 300 ºC for 8 hours. The product obtained was then calcined at 700 ºC for 4 hours. Bismuth oxide synthesized with urea (BO1) and hydrazine (BO2) as fuels both obtained form of yellow powder. The formation of bismuth oxide is indicated by the vibrations of the Bi–O–Bi and Bi–O groups and the crystal structure of a-Bi2O3 in both products. Photocatalytic activity test showed that BO1 has a photocatalyst activity in degrading rhodamine B higher than that of BO2 with constant values of  3.83×10-5 s-1 and 3.43×10-5 s-1, respectively. The high photocatalytic activity can be examined through several factors, such as: band gap values, crystal structure, morphology, and surface area, acquired as a result of the use of different fuels in the synthesis process. Copyright © 2020 BCREC Group. All rights reserved 

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