Photodegradation of Methylene Blue Using Titanium Dioxide in Different Lighting Area

2016 ◽  
Vol 706 ◽  
pp. 99-103
Author(s):  
Nuchanaporn Pijarn ◽  
Hasan Seng ◽  
Chanatan Dissong ◽  
Tuwaeibroheng Toso
Keyword(s):  
Methylene Blue ◽  
Titanium Dioxide ◽  
Equilibrium State ◽  
Spectrophotometric Method ◽  
Sol Gel ◽  
The Other ◽  
Gel Method ◽  
Degradation Rates ◽  
The Common ◽  
Fluorescent Lighting

The objectives of this work were to investigate the degradation of methylene blue (MB) by titanium dioxide (TiO2) photocatalyst in dark or no lighting area (NL), the common fluorescent lighting area (FL), and direct sun lighting area (SL). The experimental sections were carried on sol gel method of TiO2 synthesis, the 100 mg of photocatalytic sample was put in 2.0 ppm methylene blue (MB) dye solution, hold in the dark area for 30 minutes to equilibrium state, after that the sample solution can be divided into three area holder that are NL, FL and SL. The degradation rates were studied with UV-Vis spectrophotometric method. The solution hold in the NL area has lower percent degradation than the other, while the solution hold in FL area has higher percent degradation than the other.

Titanium Dioxide and Apatite Coated Fibrous Ceramics Photocatalyst

1998 ◽  
Vol 549 ◽  
Author(s):  
Torn Nonami ◽  
Shinji Kato ◽  
Hiroshi Taoda
Keyword(s):  
Methylene Blue ◽  
Titanium Dioxide ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Phosphate Ion ◽  
Fibrous Ceramics

AbstractA TiO2 and apatite coated fibrous ceramics photocatalyst filter has been developed. This filter has a function to absorb and decompose bacteria and various other materials. TiO2 was coated on the surface of the fibrous ceramics by a sol-gel method, then the filter was soaked in a pseudo-body solution containing excessive phosphate ion for 1 day at 37°C. In this research, it is recognized that this filter has absorbed and decomposed colon bacillus, methylene blue and acetaldehyde effectively.

scholarly journals Modification of the titanium implants surface with TiO2 coatings obtained by sol-gel method via dip-coating

2018 ◽  
Vol 226 ◽  
pp. 03014
Author(s):  
Vitaly A. Tarala ◽  
Alexander A. Dolgalev ◽  
Alexander A. Kravtsov ◽  
Irina S. Chikulina ◽  
Boris V. Bukhalov
Keyword(s):  
Titanium Dioxide ◽  
Sol Gel ◽  
Dip Coating ◽  
Titanium Implants ◽  
High Rate ◽  
Drawing Rate ◽  
Gel Method ◽  
Sol Gel Method ◽  
Automated Method ◽  
Tio2 Coatings

Within the framework of the study, TiO2 coatings were obtained by sol-gel method via dip-coating. For the films obtaining, manual drawing the substrate from the solution at a relatively high rate of 30 mm / min and automated drawing from the solution at low drawing rates (from 1 to 10 mm / min) were used. The morphology of coatings has been studied by scanning electron microscopy. The influence of the mode and the rate of drawing of the substrate from the solution on the films morphology was demonstrated. Analysis of the data showed, that the surface morphology of the coatings obtained at lower drawing rates by an automated method is much more homogeneous - the titanium dioxide films completely repeats the topography of the substrate surface, there are practically no fissures. Qualitative coatings of titanium dioxide, completely replicating the surface relief of the substrate, can be obtained by this method. Selection of the substrate drawing rate allows reducing the influence of the substrate topography and avoiding the appearance of crystallization centers, and as a consequence, the appearance of defects in the morphology of coatings, such as fissures or microparticles.

scholarly journals Visible-enhanced photocatalytic performance of CuWO4/WO3 hetero-structures: incorporation of plasmonic Ag nanostructures

2018 ◽  
Vol 42 (13) ◽  
pp. 11109-11116 ◽  
Author(s):  
R. Salimi ◽  
A. A. Sabbagh Alvani ◽  
N. Naseri ◽  
S. F. Du ◽  
D. Poelman
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Sol Gel ◽  
Light Irradiation ◽  
Photo Degradation ◽  
Gel Method ◽  
Sol Gel Method

A new plasmonic Ag hybridized CuWO4/WO3 heterostructured nanocomposite was successfully synthesized via a ligand-assisted sol gel method and the photocatalytic activity was evaluated by photo-degradation of methylene blue (MB) under visible light irradiation.

scholarly journals Facile synthesis of mesoporous titanium dioxide doped by Ag-coated graphene with enhanced visible-light photocatalytic performance for methylene blue degradation

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25314-25324 ◽  
Author(s):  
Lin Xiao ◽  
Li Youji ◽  
Chen Feitai ◽  
Xu Peng ◽  
Li Ming
Keyword(s):  
Methylene Blue ◽  
Titanium Dioxide ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Solvothermal Method ◽  
Sol Gel ◽  
Facile Synthesis ◽  
Methylene Blue Degradation ◽  
Visible Light Driven ◽  
Visible Light Photocatalytic

A highly efficient and elaborately structured visible-light-driven catalyst composed of mesoporous TiO2 (MT) doped with Ag+-coated graphene (MT-Ag/GR) has been successfully fabricated by a sol–gel and solvothermal method.

Influence of Preparation Methods of TiO2 Nano-Particle on Photodegradation of Methylene Blue

2020 ◽  
Vol 998 ◽  
pp. 84-89
Author(s):  
Jittinat Sirichokthanasarp ◽  
Dang Trung Tri Trinh ◽  
Du Ang Dao Channei ◽  
Kantapat Chansaenpak ◽  
Wilawan Khanitchaidecha ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Hydrothermal Method ◽  
Organic Compounds ◽  
High Efficiency ◽  
Anatase Phase ◽  
Sol Gel ◽  
Nano Particles ◽  
Preparation Methods ◽  
Gel Method ◽  
Sol Gel Method

The dye-pigments and organic compounds are known as significant pollutants in wastewater of textile industrial. Among of treatment technologies, the photocatalysis using TiO2 nano particles has potential on-site process for removing the dye-pigments and organic compounds, due to no hazardous waste and inexpensive. In this work, the TiO2 nanoparticles were synthesized by two different methods of hydrothermal and sol-gel. Nanoparticle of TiO2 synthesized by hydrothermal method contained pure anatase phase as similar as the TiO2 nanoparticles synthesized by sol-gel method. However, the TiO2 synthesized by hydrothermal method provided the higher specific surface area and pore volume rather than the another TiO2. Further, the high efficiency 86% of methylene blue photodegradation was observed during the by using TiO2 synthesized by hydrothermal method as photocatalyst, whereas the efficiency was only 72% for TiO2 synthesized by sol-gel method.

scholarly journals Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method

2020 ◽  
Vol 7 (9) ◽  
pp. 200708
Author(s):  
Z. Z. Vasiljevic ◽  
M. P. Dojcinovic ◽  
J. D. Vujancevic ◽  
I. Jankovic-Castvan ◽  
M. Ognjanovic ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Degradation ◽  
Sol Gel ◽  
Oh Radicals ◽  
Simple Method ◽  
Gel Method ◽  
Natural Sunlight ◽  
Sol Gel Method ◽  
Light Region ◽  
Iron Titanate

The aim of this work was to synthesize semiconducting oxide nanoparticles using a simple method with low production cost to be applied in natural sunlight for photocatalytic degradation of pollutants in waste water. Iron titanate (Fe 2 TiO 5 ) nanoparticles with an orthorhombic structure were successfully synthesized using a modified sol–gel method and calcination at 750°C. The as-prepared Fe 2 TiO 5 nanoparticles exhibited a moderate specific surface area. The mesoporous Fe 2 TiO 5 nanoparticles possessed strong absorption in the visible-light region and the band gap was estimated to be around 2.16 eV. The photocatalytic activity was evaluated by the degradation of methylene blue under natural sunlight. The effect of parameters such as the amount of catalyst, initial concentration of the dye and pH of the dye solution on the removal efficiency of methylene blue was investigated. Fe 2 TiO 5 showed high degradation efficiency in a strong alkaline medium that can be the result of the facilitated formation of OH radicals due to an increased concentration of hydroxyl ions.

Synthesis of Titanium Dioxide (TiO2) via Sol–Gel Method and Fabrication of Dye-Sensitized Solar Cell

2018 ◽  
Vol 10 (7) ◽  
pp. 695-699 ◽  
Author(s):  
Shikha Srivastava ◽  
S. P. Gautam ◽  
Richa Srivastava ◽  
A. K. Yadav ◽  
B. C. Yadav
Keyword(s):  
Titanium Dioxide ◽  
Solar Cell ◽  
Sol Gel ◽  
Dye Sensitized Solar Cell ◽  
Gel Method ◽  
Sol Gel Method ◽  
Dye Sensitized
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