Photocatalytic oxidation of methyl orange in water phase by immobilized TiO2-carbon nanotube nanocomposite photocatalyst

2014 ◽  
Vol 296 ◽  
pp. 1-7 ◽  
Author(s):  
Yinmao Dong ◽  
Dongyan Tang ◽  
Chensha Li
Keyword(s):  
Carbon Nanotube ◽  
Methyl Orange ◽  
Photocatalytic Oxidation ◽  
Water Phase ◽  
Immobilized Tio2

H-aggregation of Methyl Orange at the Interface between the Water Phase and Oil Phase in a Water-in-Oil Microemulsion

1997 ◽  
Vol 185 (2) ◽  
pp. 332-334 ◽  
Author(s):  
Takuya Fujieda ◽  
Koji Ohta ◽  
Noboru Wakabayashi ◽  
Shunichi Higuchi
Keyword(s):  
Methyl Orange ◽  
Water Phase

scholarly journals Preparation of ZnO-Zn2TiO4Sol Composite Films and Its Photocatalytic Activities

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Xiujuan Qin ◽  
Li Cui ◽  
Guangjie Shao
Keyword(s):  
Methyl Orange ◽  
Photocatalytic Oxidation ◽  
Spectral Response ◽  
Sol Gel ◽  
Composite Films ◽  
Visible Region ◽  
Performance Testing ◽  
Structure Characterization ◽  
Semiconductor Oxides ◽  
Wide Range

Ti-doped ZnO sol-composite films were prepared on the glass substrate by the two-step sol-gel technique. X-ray diffraction, Uv-Vis spectrophotometer, and FS spectrum of composite films were used to help make structure characterization and optical performance testing. The results showed that the composite was a mixture of ZnO + Zn2TiO4. Because of synergistic effect of both semiconductor oxides, composite films had a wide range of spectral response in the visible region, and the absorption band edge was about 510 nm, and the Green Belt of composite films luminous significantly enhanced. Photocatalytic oxidation experiments showed that using the composite films treatment (16.5 ml, l0 mg/L methyl orange aqueous solution)/cm2, the decolorization rate of methyl-orange was 90% after 3 hours irradiation.

Removal of methyl orange by multiwall carbon nanotube accelerated by ultrasound devise: Optimized experimental design

2015 ◽  
Vol 26 (4) ◽  
pp. 1087-1093 ◽  
Author(s):  
M. Ghaedi ◽  
S. Hajati ◽  
M. Zaree ◽  
Y. Shajaripour ◽  
A. Asfaram ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Methyl Orange ◽  
Experimental Design ◽  
Multiwall Carbon Nanotube ◽  
Multiwall Carbon

scholarly journals Study of photocatalytic activity of TiO2 fluorinated by thermal shock method for the degradation of different dyes

2015 ◽  
Vol 18 (2) ◽  
pp. 121-131
Author(s):  
Khoa Tien Le ◽  
Ngoc Chau Hoang ◽  
Tien Thuy Thai ◽  
Anh Trung Le ◽  
Thinh Nguyen Huu Pham ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Thermal Shock ◽  
Photocatalytic Oxidation ◽  
Organic Dyes ◽  
Cationic Dye ◽  
Solution Ph ◽  
Ph Values ◽  
Methylene Blue Cationic Dye

TiO2 P25 was fluorinated by thermal shock method in order to study the influence of thermal shock fluorination on the surface properties and the photocatalytic activity for the degradation of cationic and anionic organic dyes at different pH values. The surface charge of catalysts was characterized by the pHPZC measurement. The photocatalytic activity of catalysts was evaluated via the degradation of methylene blue (cationic dye) and methyl orange (anionic dye). The results showed that the thermal shock fluorination and the rise of solution pH can increase the surface negative charge of TiO2, which enhanced the adsorption of methylene blue and then improved the photocatalytic degradation of this cationic dye under UV and visible light. On the other hand, after the fluorination, the adsorption of methyl orange on TiO2 was strongly reduced, which limited the photocatalytic oxidation of this anion dye.

Preparation and Photocatalytic Performance of Nanostructural WO3 Induced by Ion in Hydrothermal Synthesis

2012 ◽  
Vol 580 ◽  
pp. 535-538 ◽  
Author(s):  
Bin Yu ◽  
Hai Feng Chen ◽  
Ting Yan
Keyword(s):  
Methyl Orange ◽  
Photocatalytic Oxidation ◽  
Photocatalytic Performance ◽  
Alkali Metal Cation ◽  
Regular Pattern ◽  
X Ray Diffraction ◽  
Optimal Amount ◽  
X Ray ◽  
Oxidation Performance ◽  
The Impact

WO3 nanocrystals have been successfully synthesized via an ion induced auxiliary hydrothermal method. The experiment products were characterized by powder X-ray diffraction (XRD) and the Photocatalytic oxidation performance of products were characterized by using the photocatalytic oxidation of methyl orange under the condition of hydrogen peroxide. The optimal amount of catalyst required for catalytic oxidation experiments and the concentration of methyl orange (MO) were determined. The experimental results indicated that with he enhancement of metallicity in alkali main group, the photocatalytic activity of the WO3 induced by alkali metal cation increased; The SO42- has higher induce catalytic activity than Cl- when the type and quantity of cation are the same; however, the ion induction on the impact of surface area is quite different, and it founded that they comply with this regular pattern, that is Na+> K+> Li+ and SO42-> Cl-.

Photocatalytic oxidation of methyl orange by natural V-bearing rutile under visible light

2007 ◽  
Vol 91 (19) ◽  
pp. 1849-1855 ◽  
Author(s):  
Anhuai Lu ◽  
Yan Li ◽  
Ming Lv ◽  
Changqiu Wang ◽  
Lei Yang ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Photocatalytic Oxidation

scholarly journals Enhanced voltammetric detection of paracetamol by using carbon nanotube modified electrode as an electrochemical sensor

2019 ◽  
Vol 10 (1) ◽  
pp. 29-40 ◽  
Author(s):  
Madikeri M. Charithra ◽  
Jamballi G. Manjunatha
Keyword(s):  
Carbon Nanotube ◽  
Methyl Orange ◽  
Electrochemical Sensor ◽  
Pharmaceutical Formulations ◽  
Differential Pulse ◽  
Limit Of Quantification ◽  
Experimental Conditions ◽  
Voltammetric Detection ◽  
Carbon Nanotube Paste Electrode ◽  
Paste Electrode

New aspects associated with electro-catalytic activity of poly(methyl orange) modified carbon nanotube paste electrode (PMMCNTPE) towards the detection of paracetamol (PC) which is typically used worldwide as a pain reliever, were explored through implementation of cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. Bare carbon nanotube paste electrode (BCNTPE) was modified by methyl orange using the electro­polymerizing method. The effect of pH and influence of potential scan rate were resolved by means of CV technique. It was found that under optimized experimental conditions, PMMCNTPE imparts the analytical curve for PC in the concentration range of 2.0×10-6 – 5.0×10-5 M with detection limit of 3.8×10-8 M and limit of quantification of 1.2×10-8 M. The proposed sensor exhibited acceptable reproducibility, admirable stability, and adequate repeatability. The interference study of PC with dopamine (DA) and folic acid (FA) showed good selectivity of the designed sensor. The feasibility of the constructed electrochemical sensor to detect PC was successfully tested in some pharmaceutical formulations.

Sign in / Sign up

Export Citation Format

Share Document