Preparation of TiO2-based photocatalysts and their photocatalytic degradation properties for methylene blue, rhodamine B and methyl orange

2017 ◽  
Vol 81 ◽  
pp. 282-290 ◽  
Author(s):  
Jin-Gang Yu ◽  
Jiao Zou ◽  
Liang-Liang Liu ◽  
Xin-Yu Jiang ◽  
Fei-Peng Jiao ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Degradation Properties

Photocatalytic degradation of methyl orange, methylene blue and rhodamine B with AgCl nanocatalyst synthesised from its bulk material in the ionic liquid [P6 6 6 14]Cl

2016 ◽  
Vol 75 (1) ◽  
pp. 128-140 ◽  
Author(s):  
Borja Rodríguez-Cabo ◽  
Iago Rodríguez-Palmeiro ◽  
Raquel Corchero ◽  
Rosario Rodil ◽  
Eva Rodil ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Methylene Blue ◽  
Ionic Liquid ◽  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Silver Chloride ◽  
Bulk Material ◽  
Experimental Conditions ◽  
Agcl Nanoparticles

The photocatalytic degradation of wastewater containing three industrial dyes belonging to different families, methyl orange (MO), methylene blue (MB) and Rhodamine B (RhB), was studied under UV-Vis irradiation using synthesised silver chloride nanoparticles. The nanocatalyst was prepared by a dissolution/reprecipitation method starting from the bulk powder and the ionic liquid trihexyl(tetradecyl)phosphonium chloride, [P6 6 6 14]Cl, without addition of other solvents. The obtained catalyst was characterised by UV-Vis absorbance, X-ray powder diffraction, transmission electron microscopy and scanning electron microscopy. The decolourisation of the samples was studied by UV-Vis absorbance at the corresponding wavelength. Starting from 10 ppm dye solutions and 1 g L−1 of the synthesised AgCl nanoparticles, degradation efficiencies of 98.4% for MO, 98.6% for MB and 99.9% for RhB, were achieved in 1 h. The degradation mechanisms for the different dyes were studied. Comparison with other frequently used nanocatalysts, namely P-25 Degussa, TiO2 anatase, Ag and ZnO, highlights the strong catalytic activity of AgCl nanoparticles. Under the same experimental conditions, these nanoparticles led to higher (more than 10%) and faster degradations.

Excellent Photocatalytic degradation of Methylene Blue, Rhodamine B and Methyl Orange dyes by Ag-ZnO nanocomposite under natural sunlight irradiation

Optik ◽  
2021 ◽  
Vol 231 ◽  
pp. 166518
Author(s):  
Stanley R. ◽  
J. Alphas Jebasingh ◽  
Manisha Vidyavathy S. ◽  
P. Kingston Stanley ◽  
P. Ponmani ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Sunlight Irradiation ◽  
Natural Sunlight

scholarly journals Investigation on the Synthesis and Photocatalytic Property of Uranyl Complexes of the β-Diketonates Biscatecholamide Ligand

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Qingchun Zhang ◽  
Bo Jin ◽  
Rufang Peng ◽  
Xiaofang Wang ◽  
Zhaotao Shi ◽  
...  
Keyword(s):  
Oxygen Atom ◽  
Photocatalytic Degradation ◽  
Elemental Analysis ◽  
Uranyl Nitrate ◽  
Rhodamine B ◽  
Photocatalytic Property ◽  
Uranyl Ion ◽  
Uranyl Complexes ◽  
H Nmr ◽  
Degradation Properties

A series of uranyl complexes have been synthesized by reacting hexadentate ligands CH2[COO (CH2)nCAM; n=2, 3, 4]2 [CAM = 2,3-Ph(OH)2CONH] containing the catecholamide (CAM) group and β-diketonates framework with uranyl nitrate. They were characterized by FTIR, UV-vis, 1H NMR, XPS, TGA, and elemental analysis. The analysis revealed that oxygen atom of β-diketonate did not bind to uranyl ion in complexes 1–3. The photocatalytic degradation properties of the target complexes for degradation of rhodamine B (RhB) were investigated. The result indicated that approximately 74%, 71%, and 67% RhB were degraded in the presence of complexes 1–3 after about 210 min, respectively. Consequently, complexes 1–3 have excellent photocatalytic degradation property.

Phase-controlled synthesis of bismuth oxide polymorphs for photocatalytic applications

2018 ◽  
Vol 2 (9) ◽  
pp. 1664-1673 ◽  
Author(s):  
Thangavel Selvamani ◽  
Sambandam Anandan ◽  
Luis Granone ◽  
Detlef W. Bahnemann ◽  
Muthupandian Ashokkumar
Keyword(s):  
Methylene Blue ◽  
Methyl Orange ◽  
Bismuth Oxide ◽  
Rhodamine B ◽  
Controlled Synthesis ◽  
Acid Orange 7 ◽  
Acid Orange ◽  
Photocatalytic Applications

Bismuth oxide polymorphs (β-Bi2O3 nanoparticles and α-Bi2O3 coral-like morphology) were synthesized and they show an enhanced efficacy for the degradation of rhodamine B and acid orange 7 as compared to that of methylene blue and methyl orange under simulated solar illumination.

scholarly journals Fabrication of MoO3 Nanowire-based Membrane Devices for the Selective Adsorption of Cationic Dyes from Aqueous Solutions with High Performance and Reusability

Micromachines ◽  
2019 ◽  
Vol 10 (9) ◽  
pp. 586 ◽  
Author(s):  
Zhang ◽  
Park
Keyword(s):  
Methylene Blue ◽  
Methyl Orange ◽  
Aqueous Solutions ◽  
Rhodamine B ◽  
High Performance ◽  
Selective Adsorption ◽  
Treatment Method ◽  
Cationic Dyes ◽  
Adsorption Ability ◽  
Anionic Dye

A series of ultralong (up to tens of micrometers) MoO3 nanowire-based membranes were synthesized for the treatment of aqueous solutions containing the cationic dyes methylene blue (MB) and rhodamine B (RhB). This treatment method possesses extremely rapid and superhigh adsorbability (up to 521 and 321 mg/g for MB and RhB, respectively), as well excellent selective adsorption ability of cationic dyes with respect to the anionic dye methyl orange (MO). Moreover, the cationic dyes on the membrane can be desorbed easily, and reusability is good.

Photocatalytic degradation of methylene blue and methyl orange in a Zn(II)-based Metal–Organic Framework

2015 ◽  
Vol 57 (38) ◽  
pp. 17844-17851 ◽  
Author(s):  
Chong-Chen Wang ◽  
Yan-Qiu Zhang ◽  
Tian Zhu ◽  
Peng Wang ◽  
Shi-Jie Gao
Keyword(s):  
Methylene Blue ◽  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

Electrospun 3,5-dithienylvinyleneBODIPY embedded polystyrene nanofibers for the photocatalytic degradation of azo dyes in industrial wastewaters

2018 ◽  
Vol 22 (06) ◽  
pp. 501-508 ◽  
Author(s):  
Augustus K. Lebechi ◽  
Lizhi Gai ◽  
Zhen Shen ◽  
Tebello Nyokong ◽  
John Mack
Keyword(s):  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Azo Dyes ◽  
Solid Phase ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
First Order Kinetics ◽  
Orange G ◽  
Methyl Orange Concentration ◽  
Degradation Properties

The potential utility of electrospun polystyrene (PS) nanofibers embedded with 2,6-diiodo-8-phenyl-1,7-dimethyl-3,5-di-2-thienylvinyleneBODIPY for the photocatalytic degradation of azo dyes is investigated. A comparison of the singlet oxygen quantum yield of the [Formula: see text]-extended BODIPY dye in solution and in the PS nanofibers demonstrates that its photosensitizer properties are retained when it is embedded in the solid phase. The photocatalytic degradation properties of the PS nanofibers for Methyl Orange and Orange G were determined by using a Thorlabs 625 nm light emitting diode. The rate of photodegradation increases with the Orange G and Methyl Orange concentration and follows pseudo-first order kinetics at pH 6.7.

scholarly journals Preparation of Graphene Oxide Sand Composites as Super Adsorbent for Water Purification Application

2018 ◽  
Vol 156 ◽  
pp. 05019 ◽  
Author(s):  
Eko Andrijanto ◽  
Gatot Subiyanto ◽  
Nina Marlina ◽  
Hanifa Citra ◽  
Cahya Lintang
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Methyl Orange ◽  
Water Purification ◽  
Rhodamine B ◽  
Solution Method ◽  
Color Removal ◽  
Contaminated Water ◽  
Graphene Oxides ◽  
Xrd Diffraction

This paper describes a method to synthesize a graphene oxide sand composites (GSC) as filter media (absorbent) for water purification. Graphene oxides is synthesized from graphite using modification of Hummer's method. The graphene oxide sand composites is prepared through solution method at 100 °C. The graphene oxide is analyzed using XRD, FTIR to confirm its formation. The FTIR spectrum and XRD diffraction pattern confirmed that the graphene oxide synthesized by this method is able to convert graphite into graphene oxide. Performance tests were conducted using a column to purify contaminated water which was mimicked using dyes such as rhodamine B, methylene blue and methyl orange.The initial concentration for all dyes were set for 5, 10, 25, 50 and 100 ppm. The color removal for methylene blue was 100% at all concentrations. However, for the rhodamine B and methyl orange, the color removal achieved 100% for the first three concentration 5, 10 and 25 ppm. The higher concentration of 50 and 100 ppm, the removal were slightly reduced. For the 50 ppm, the color removal of rhodamine B was 98% and for methyl orange 87% respectively. At 100 ppm, the color removal for rhodamine B drops to 92% and for the methyl orange was only 77% respectively. The GSC was very effective to remove methylene blue dyes at any concentration followed by rhodamine B and methyl orange. This GSC composite material is potential to be applied for water purification.

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