scholarly journals Photocatalytic dye degradation and biological activities of the Fe2O3/Cu2O nanocomposite

RSC Advances ◽  
2019 ◽  
Vol 9 (15) ◽  
pp. 8557-8568 ◽  
Author(s):  
Mavinakere Ramesh Abhilash ◽  
Gangadhar Akshatha ◽  
Shivanna Srikantaswamy
Keyword(s):  
Dye Degradation ◽  
Biological Activities ◽  
Hydrothermal Route ◽  
Facile Hydrothermal Route ◽  
Photocatalytic Dye Degradation

The present study reports the synthesis of the Fe2O3/Cu2O nanocompositeviaa facile hydrothermal route.

scholarly journals Photocatalytic Dye Degradation and Biological Activities of Cu-Doped ZnSe Nanoparticles and Their Insights

Water ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 2561
Author(s):  
V. Beena ◽  
S. L. Rayar ◽  
S. Ajitha ◽  
Awais Ahmad ◽  
Faiza Jan Iftikhar ◽  
...  
Keyword(s):  
Dye Degradation ◽  
Biological Activities ◽  
Antibacterial Activities ◽  
Morphological Properties ◽  
Precipitation Method ◽  
Diffuse Reflection Spectroscopy ◽  
Znse Nanoparticles ◽  
First Order Kinetics ◽  
Photocatalytic Dye Degradation ◽  
Co Precipitation

Environmental nanotechnology has received much attention owing to its implications on environmental ecosystem, and thus is promising for the elimination of toxic elements from the aquatic surface. This work focuses on Cu-doped ZnSe nanoparticles using the co-precipitation method. The synthesized Cu-doped ZnSe nanoparticles were examined for structural, optical, and morphological properties with the help of XRD, FTIR, UV/vis diffuse reflection spectroscopy (DRS), FESEM, TEM, and XPS. The synthesized Cu-doped ZnSe nanoparticles revealed the presence of Cu2+ in the ZnSe lattice, which has been shown to take a predominant role for enhanced catalysis in the Cu-doped ZnSe nanoparticles. The synthesized Cu-doped ZnSe nanoparticles were investigated for their catalytic and antibacterial activities. The 0.1 M copper-doped ZnSe nanoparticles exhibited the highest rate of degradation against the methyl orange dye, which was found to be 87%. A pseudo-first-order kinetics was followed by Cu-doped ZnSe nanoparticles with a rate constant of 0.1334 min−1. The gram-positive and gram-negative bacteria were used for investigating the anti-bacterial activity of the Cu-doped ZnSe nanoparticles. The Cu-doped ZnSe nanoparticles exhibited enhanced photocatalytic and antibacterial activity.

scholarly journals Vanadium doped CaTiO3 cuboids: Role of vanadium in improving the photocatalytic activity

2021 ◽  
Author(s):  
Harsha Bantawal ◽  
Sandhya U. Shenoy ◽  
Denthaje Krishna Bhat
Keyword(s):  
Photocatalytic Activity ◽  
Water Splitting ◽  
Dye Degradation ◽  
Low Cost ◽  
Physicochemical Stability ◽  
Photocatalytic Dye Degradation

CaTiO3 has attracted enormous interest in the field of photocatalytic dye degradation and water splitting owing to its low cost, excellent physicochemical stability and structural tunability. Herein, we have developed...

Efficient photocatalytic dye degradation by flowerlike MoS2/SrFe12O19 heterojunction under visible light

2021 ◽  
pp. 149855
Author(s):  
Sijing Chen ◽  
Yongjiang Di ◽  
Hang Li ◽  
Mengyu Wang ◽  
Bi Jia ◽  
...  
Keyword(s):  
Visible Light ◽  
Dye Degradation ◽  
Photocatalytic Dye Degradation

PEG-Assisted Hydrothermal Synthesis and Photocatalytic Activity of Bi2Fe4O9 Crystallites

2011 ◽  
Vol 1292 ◽  
Author(s):  
Dengrong Cai ◽  
Jianmin Li ◽  
Shundong Bu ◽  
Shengwen Yu ◽  
Dengren Jin ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Diffuse Reflectance Spectrum ◽  
X Ray Diffraction ◽  
Hydrothermal Route ◽  
Peg 400 ◽  
Transmission Electron ◽  
Light Region ◽  
Facile Hydrothermal Route ◽  
Degradation Ratio

ABSTRACTA facile hydrothermal route assisted by polyethylene glycol (PEG) 400 was utilized to synthesize single-phase Bi2Fe4O9 crystallites. X-ray diffraction results showed the products with PEG 400 of 30 g/L exhibited a preferred growth along the (001) plane. Transmission electron microscopy indicated that the morphology of the as-prepared Bi2Fe4O9 crystallites with PEG 400 were plake-like and rod-like. Strong absorption in visible-light region of the products was characterized by UV-vis diffuse reflectance spectrum (UV-DRS). The photocatalytic activity of Bi2Fe4O9 crystallites was evaluated on degradation of methyl orange (MO) under visible light irradiation. For 3 h irradiation, the degradation ratio was increased to 93% with the aid of a small amount of H2O2. The analysis of FT-IR spectra proved that the Bi2Fe4O9 catalysts were remained stable after the photocalytic reactions.

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