scholarly journals Synthetize of Nano Particles a-Fe2O3 Material from Waste Magnetic Filter Ceramic Tile Industry Prepare by Calcination Method as Photocatalyst Degradation of Methylene Blue

2021 ◽  
Vol 1912 (1) ◽  
pp. 012020
Author(s):  
Anggi Ayuningtiyas ◽  
Eko Prabowo Hadisantoso ◽  
Kristanto Wahyudi
Keyword(s):  
Methylene Blue ◽  
Ceramic Tile ◽  
Nano Particles ◽  
Magnetic Filter ◽  
Calcination Method ◽  
Filter Ceramic

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.

Adsorption and UV-Visible Light Induced Degradation of Methylene Blue over ZnO Nano-Particles

nano Online ◽  
2016 ◽  
Author(s):  
Muhammad Amirul Islam ◽  
Iqbal Ahmed Siddiquey ◽  
Md. Azizur Rahman Khan ◽  
Md. Mahbubul Alam ◽  
Saiful S.M. Islam ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Nano Particles ◽  
Uv Visible

scholarly journals Assessment of Photodynamic Therapy and Nanoparticles Effects on Caries Models

2018 ◽  
Vol 6 (7) ◽  
pp. 1289-1295 ◽  
Author(s):  
Ali Saafan ◽  
Mohamed H. Zaazou ◽  
Marwa K. Sallam ◽  
Osama Mosallam ◽  
Heba A. El Danaf
Keyword(s):  
Methylene Blue ◽  
Photodynamic Therapy ◽  
Diode Laser ◽  
Streptococcus Mutans ◽  
Treated Group ◽  
Nano Particles ◽  
Control Group ◽  
P Value ◽  
Ag Nps ◽  
Colony Forming Units

AIM: To assess the antibacterial competence of 650 nm diode laser, Methylene Blue (MB) and Silver Nano-Particles (Ag NPs) on Streptococcus mutans in biofilm-induced caries models.MATERIAL AND METHODS: One hundred eighty specimens were prepared and equally divided into 6 groups. One group was untreated (control), and the others were subjected to either MB, laser, Ag NPs, the combination of MB and Laser or MB, laser and Ag NPs.RESULTS: Comparison of the log10 mean Colony Forming Units per millilitre (CFU/ml) values of each of the treated 5 groups and the control group was found statistically significant (P-value < 0.05).The combination of MB, laser and Ag NPs recorded the greatest reduction (95.28%). MB alone represented the least capable (74.09%). The efficiency differences among the Ag NPs treated group; the Laser treated group and the combined MB/Laser treated group were found statistically insignificant.CONCLUSION: The combination of MB, 650 nm diode laser and Ag NPs may be among the highly effective modern antimicrobial therapeutics in dentistry.

scholarly journals Effective La-Na Co-Doped TiO2 Nano-Particles for Dye Adsorption: Synthesis, Characterization and Study on Adsorption Kinetics

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 400 ◽  
Author(s):  
Inderjeet Singh ◽  
Balaji Birajdar
Keyword(s):  
Methylene Blue ◽  
Dye Removal ◽  
Dye Adsorption ◽  
Nano Particles ◽  
Hydroxyl Groups ◽  
Order Kinetic ◽  
Doped Tio2 ◽  
X Ray ◽  
Aqueous Solvent ◽  
Co Doped

The mesoporous La-Na co-doped TiO2 nanoparticles (NPs) have been synthesized by non-aqueous, solvent-controlled, sol-gel route. The substitutional doping of large sized Na+1 and La+3 at Ti4+ is confirmed by X-ray diffraction (XRD) and further supported by Transmission Electron Microscopy (TEM) and X-ray Photo-electron Spectroscopy (XPS). The consequent increase in adsorbed hydroxyl groups at surface of La-Na co-doped TiO2 results in decrease in pHIEP, which makes nanoparticle surface more prone to cationic methylene blue (MB) dye adsorption. The MB dye removal was examined by different metal doping, pH, contact time, NPs dose, initial dye concentration and temperature. Maximum dye removal percentage was achieved at pH 7.0. The kinetic analysis suggests adsorption dynamics is best described by pseudo second-order kinetic model. Langmuir adsorption isotherm studies revealed endothermic monolayer adsorption of Methylene Blue dye.

Influence of Sm3+ and Gd3+ Co-Doping on Photocatalytic Activity of TiO2

2011 ◽  
Vol 239-242 ◽  
pp. 1045-1048
Author(s):  
Xu Dong Lu ◽  
Cheng Zhi Jiang
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Phase Transformation ◽  
Photocatalytic Activity ◽  
Degradation Rate ◽  
Sol Gel ◽  
Nano Particles ◽  
Co Doping ◽  
The Matrix ◽  
Co Doped

Pure TiO2, Sm3+and Gd3+co-doping TiO2have been prepared by sol-gel method and characterized by the techniques such as XRD and SEM. The photocatalytic degradation of methylene blue (MB) in aqueous solution was used as a probe reaction to evaluate Pure TiO2, Sm3+and Gd3+co-doping TiO2photocatalytic activity. The matrix distortion of TiO2increases after co-doping of Sm3+and Gd3+are clearly observed. The results show that co-doping of Sm3+and Gd3+inhibits the phase transformation of TiO2from anatase to rutile, decreases the diameter of TiO2nano-particles and significantly enhance the photocatalytic activity of TiO2. When the co-doped amounts for Sm3+and Gd3+are 0.1% and 0.2%, its degradation rate reaches 99%.

Photocatalytic Activity of Sm-Doped BiVO4 Powders Prepared by Chemical Precipitation Process

2011 ◽  
Vol 391-392 ◽  
pp. 1283-1286
Author(s):  
Cheng Zhi Jiang ◽  
Xu Dong Lu ◽  
Yan Qiu Tan ◽  
Sen Bai
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Photocatalytic Degradation ◽  
Degradation Rate ◽  
Chemical Precipitation ◽  
Nano Particles ◽  
Chemical Precipitation Method ◽  
Precipitation Method ◽  
Precipitation Process

Pure BiVO4, Sm doped BiVO4have been prepared by chemical precipitation method and characterized by the techniques such as XRD and SEM. The photocatalytic degradation of methylene blue (MB) in aqueous solution was used as a probe reaction to evaluate pure BiVO4, Sm doped BiVO4photocatalytic activity. The results show that doping of Sm decreases the diameter of BiVO4 nano-particles and significantly enhance the photocatalytic activity of BiVO4. When the 0.2% Sm doped, the BiVO4degradation rate reaches 92.8%.

scholarly journals Geopolymerization of Coal Fly Ash, Ceramic Tile Waste and Spent Bleaching Earth for the Production of Sodium Aluminosilicate Monolith

2021 ◽  
Vol 333 ◽  
pp. 12001
Author(s):  
Renzo Macasil ◽  
Anne Paulinne Redublo ◽  
Amabelle Santos ◽  
Clark Ivan Torres ◽  
Denvert Pangayao
Keyword(s):  
Methylene Blue ◽  
Compressive Strength ◽  
Fly Ash ◽  
Ceramic Tile ◽  
Coal Fly Ash ◽  
Bleaching Earth ◽  
Mass Ratio ◽  
Sodium Aluminosilicate ◽  
Simple Lattice ◽  
Adsorption Intensity

In this study, compressive strength, density, porosity, and methylene blue adsorptive intensity of sodium aluminosilicate monolith produced from coal fly ash (CFA), ceramic tile waste (CTW), and spent bleaching earth (SBE) were evaluated. Using simple lattice mixture design, CFA-CTW-SBE blend with mass ratio of 55.95% CFA, 38.73% CTW, and 5.31% SBE, and an alkali solution containing 80% 8M NaOH and 20% sodium silicate, resulted to a maximum desirability of 12.4MPa compressive strength, 1310 kg/m3 density, 17.03% porosity, and 1.63% methylene blue adsorption intensity. The properties of the product conform to the specifications of ASTM C90-14 for lightweight load-bearing concrete.

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