scholarly journals Study on Fabrication and investigation of the effects of copper salt precursor with different anions SO42-, Cl-, CH3COO- and NO3- on the structure and photocatalytic properties for decomposition of methyl orange dye of octahedral Cu2O nanoparticles

2020 ◽  
Vol 9 (3) ◽  
pp. 112-117
Author(s):  
Mai Nguyen Thi Tuyet ◽  
Hue Dang Thi Minh ◽  
Lam Nguyen Thi ◽  
Huyen Tran Thi Thu ◽  
Nga Nguyen Kim ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Rate Constant ◽  
Decomposition Reaction ◽  
Raman Shift ◽  
Photocatalytic Efficiency ◽  
Copper Salts ◽  
Optical Gap Energy ◽  
Cu2o Nanoparticles ◽  
Methyl Orange Dye

The octahedra single-phase Cu2O nanoparticles were fabricated from copper salts precursors with different anions including SO42-, Cl-, CH3COO- and NO3-. The prepared materials were characterized by: XRD, Raman shift, SEM, solid UV-vis absorption spectra. The photocatalytic activity and decomposition reaction kinetics for methyl orange dye of the prepared Cu2O samples under visible light irradiation were also studied in this experiment. The results showed that the fabricated Cu2O materials all had a nanometer-sized crystal particles arranged in about of 300-1000 nm with the octahedral particle shape. The narrow optical gap energy of Cu2O samples achieved Eg» 1.83-2.01 eV. The fabricated Cu2O samples all had the high photocatalytic efficiency in decomposition of methyl orange dye (MO) under visible light when added with H2O2 assisted catalyst. The photocatalytic efficiency of the Cu2O-(SO42-)/H2O2 sample was the highest, reaching 99.2% with the rate constant k= 0.10132 min-1. The photocatalytic efficiency of the Cu2O-(CH3COO-)/H2O2 sample was the smallest, reaching 97.6% with the rate constant k= 0.09098 min-1

Novel biomolecule-capped CdTe nanoparticles for highly efficient photodegradation of methyl orange dye under visible-light irradiation

2020 ◽  
Vol 275 ◽  
pp. 128167
Author(s):  
G. Palanisamy ◽  
Ba-Son Nguyen ◽  
Vu-Quynh Nguyen ◽  
Van-Huy Nguyen ◽  
K. Bhuvaneswari ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Highly Efficient ◽  
Cdte Nanoparticles ◽  
Methyl Orange Dye

scholarly journals Heterogeneous Deposition of Cu2O Nanoparticles on TiO2Nanotube Array Films in Organic Solvent

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Xinwen Huang ◽  
Zongjian Liu
Keyword(s):  
Methyl Orange ◽  
Ethylene Glycol ◽  
Organic Solvent ◽  
Visible Light ◽  
Electrochemical Method ◽  
Simulated Sunlight ◽  
Organic Solution ◽  
Nanotube Array ◽  
Cu2o Nanoparticles ◽  
Novel Method

A novel method for decoration of anodic TiO2nanotube array films (NAFs) with Cu2O nanoparticles has been reported. The method is based on the reduction of Cu(II) in a mixture of ethylene glycol and N,N-dimethylformamide at 120°C for 16 h, where the resulting Cu2O can heterogeneously nucleate and grow on TiO2NAFs. The nanosized Cu2O is found to be well dispersed on the wall of TiO2nanotubes without blocking the nanotube, a commonly observed phenomenon in the case of deposition of Cu2O via electrochemical method. The amount of Cu2O deposited on the TiO2NAFs can be varied by adjusting the concentration of Cu(II) in the organic solution. UV-vis spectra measurement indicates that the decoration of TiO2NAFs with Cu2O nanoparticles greatly improves their ability to respond to visible light. By examining the photocurrent and photodegradation of methyl orange under simulated sunlight, it is found that these Cu2O-decorated TiO2NAFs show much more photoactive in comparison with the as-prepared TiO2NAFs.

scholarly journals Synergistic effects of C, N, S, Fe-multidoped TiO2 for photocatalytic degradation of methyl orange dye under UV and visible light irradiations

2019 ◽  
Vol 1 (8) ◽  
Author(s):  
Imane Ellouzi ◽  
Souad El Hajjaji ◽  
Mourad Harir ◽  
Philippe Schmitt Koplin ◽  
Didier Robert ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Synergistic Effects ◽  
Methyl Orange Dye ◽  
Degradation Of Methyl Orange

Enhanced structural, optical, and photocatalytic activities of Cd–Co doped Zn ferrites for degrading methyl orange dye under irradiation by visible light

2022 ◽  
Vol 161 ◽  
pp. 110419
Author(s):  
M. Shakil ◽  
Usama Inayat ◽  
N.R. Khalid ◽  
Muhammad Tanveer ◽  
S.S.A. Gillani ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Photocatalytic Activities ◽  
Methyl Orange Dye ◽  
Co Doped

Visible light–driven photodegradation of Noxious methyl orange dye by Pd @ WO3 nanocomposite catalysts in aqueous solution

2021 ◽  
pp. 1-18
Author(s):  
L. T. Parvathi ◽  
M. Arunpandian ◽  
D. Sivaganesh ◽  
E. R. Nagarajan ◽  
Swaminathan Karuthapandian
Keyword(s):  
Aqueous Solution ◽  
Methyl Orange ◽  
Visible Light ◽  
Visible Light Driven ◽  
Methyl Orange Dye ◽  
Nanocomposite Catalysts

CQD/TiO2 nanocomposite photocatalyst for efficient visible light-driven purification of wastewater containing methyl orange dye

2021 ◽  
pp. 125583
Author(s):  
Muhammad Shafique ◽  
Muhammad Shabir Mahr ◽  
Muhammad Yaseen ◽  
Haq Nawaz Bhatti
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Visible Light Driven ◽  
Methyl Orange Dye
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