Visible light photo-degradation of methylene blue over Fe or Cu promoted ZnO nanoparticles

2015 ◽  
Vol 141 ◽  
pp. 27-33 ◽  
Author(s):  
Hamid Reza Mardani ◽  
Mehdi Forouzani ◽  
Mitra Ziari ◽  
Pourya Biparva
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Zno Nanoparticles ◽  
Photo Degradation

scholarly journals Visible-enhanced photocatalytic performance of CuWO4/WO3 hetero-structures: incorporation of plasmonic Ag nanostructures

2018 ◽  
Vol 42 (13) ◽  
pp. 11109-11116 ◽  
Author(s):  
R. Salimi ◽  
A. A. Sabbagh Alvani ◽  
N. Naseri ◽  
S. F. Du ◽  
D. Poelman
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Sol Gel ◽  
Light Irradiation ◽  
Photo Degradation ◽  
Gel Method ◽  
Sol Gel Method

A new plasmonic Ag hybridized CuWO4/WO3 heterostructured nanocomposite was successfully synthesized via a ligand-assisted sol gel method and the photocatalytic activity was evaluated by photo-degradation of methylene blue (MB) under visible light irradiation.

Composite of acicular rod-like ZnO nanoparticles and semiconducting polypyrrole photoactive under visible light irradiation for methylene blue dye photodegradation

2015 ◽  
Vol 293 (12) ◽  
pp. 3459-3469 ◽  
Author(s):  
Víctor M. Ovando-Medina ◽  
Raúl G. López ◽  
Blanca E. Castillo-Reyes ◽  
Pedro A. Alonso-Dávila ◽  
Hugo Martínez-Gutiérrez ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Zno Nanoparticles ◽  
Light Irradiation ◽  
Blue Dye ◽  
Methylene Blue Dye

The Preparation of C, N, S Tri-Doped TiO2 and Visible-Light Photo-Degradation of Methylene Blue and Dyes

2011 ◽  
Vol 287-290 ◽  
pp. 1735-1743 ◽  
Author(s):  
Yi Dong Shi ◽  
Qiong Guo ◽  
Yuan Song Xie
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photoelectron Spectroscopy ◽  
Degradation Rate ◽  
Raw Material ◽  
Precipitation Method ◽  
Light Sources ◽  
Visible Absorption ◽  
Photo Degradation ◽  
X Ray

The C, N, S tri-doped TiO2 with high visible-light photo-catalysis effect was successfully prepared by mixing thiourea with the self-prepared TiO2 powder through calcining for 2h at 450°C. The TiO2 powder was obtained by homogeneous precipitation method using the metatitanic acid instead of expensive chemical reagents contained Ti as raw material. The effect of doping materials and methods on the photo-degradation rate of methylene blue and dyes was studied. The characterizations of the doped TiO2 were analyzed using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV-visible absorption spectra (UV-vis). The results showed that this sample was the anatase TiO2 and contained elements C, N, S. The sample exhibited a significant response to ultraviolet and visible light. In the photo-degradation experiment, the C, N, S, tridoped-TiO2 could decolorize methylene blue and textile dyes quickly, and the photo-degradation rate of methylene blue could reach upward 98% after 3 hours under the different light sources.

Ni, Co and Ni–Co codoping induced modification in shape, optical band gap and enhanced photocatalytic activity of CeO2 nanostructures for photodegradation of methylene blue dye under visible light irradiation

RSC Advances ◽  
2016 ◽  
Vol 6 (11) ◽  
pp. 8651-8660 ◽  
Author(s):  
Sachin Kumar ◽  
Animesh K. Ojha
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Band Gap ◽  
Visible Light Irradiation ◽  
Recombination Rate ◽  
Optical Band Gap ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Photo Degradation

The recombination rate of photo-induced electrons and holes for Ni–Co codoped CeO2 nanostructures is reduced significantly, which essentially improve the photocatalytic activity for photo-degradation of MB dye.

Liquid-Phase Synthesis of NiO-Loaded Ag Nanoparticles and Enhanced Photo-Degradation Performance

2011 ◽  
Vol 287-290 ◽  
pp. 145-149 ◽  
Author(s):  
Zong Min Tian ◽  
Xu Xiang ◽  
Zhi Wei Li ◽  
Feng Li
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Liquid Phase ◽  
Visible Light ◽  
Ag Nanoparticles ◽  
Precipitation Method ◽  
Phase Precipitation ◽  
Photo Degradation ◽  
Nano Structure ◽  
Phase Synthesis

We have synthesized layered Ni(OH)2via a facile liquid-phase precipitation method. NiO with a micro/nano-structure was obtained via calcining Ni(OH)2precursor at 350°C. The as-prepared NiO was utilized as a support to load Ag nanocrystals. SEM and TEM observations showed that Ag nanoparticles were homogeneously distributed onto NiO support and the Ag nanoparticles have sizes of 4-5 nm. The photocatalytic activity of NiO-loaded Ag was investigated by the photodegradation of methylene blue (MB) under the irradiation of visible light. The results suggest that the loading of Ag nanoparticles can enhance the photo-degradation performance of pristine NiO.

Sign in / Sign up

Export Citation Format

Share Document