Ultrasound-assisted preparation and characterization of β-Bi2O3 nanostructures: Exploring the photocatalytic activity against rhodamine B

2015 ◽  
Vol 81 ◽  
pp. 151-160 ◽  
Author(s):  
Yashar Azizian-Kalandaragh ◽  
Farzad Sedaghatdoust-Bodagh ◽  
Aziz Habibi-Yangjeh
2015 ◽  
Vol 637 ◽  
pp. 127-132 ◽  
Author(s):  
Qizhao Wang ◽  
Longhui Zheng ◽  
Yutao Chen ◽  
Jiafeng Fan ◽  
Haohao Huang ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 88832-88840 ◽  
Author(s):  
Weibin Li ◽  
Qi Wang ◽  
Liying Huang ◽  
Yeping Li ◽  
Yuanguo Xu ◽  
...  

Bi2WO6 modified with few-layer BN was synthesized by an impregnation method. The as-prepared BN/Bi2WO6 photocatalysts exhibited a higher photocatalytic activity for the degradation of Rhodamine B (RhB) than the pure Bi2WO6.


2014 ◽  
Vol 292 (12) ◽  
pp. 3085-3093 ◽  
Author(s):  
Haibin Huang ◽  
Qinhui Chen ◽  
Junhui He ◽  
Longhui Zheng ◽  
Baoling Chen ◽  
...  

2013 ◽  
Vol 1497 ◽  
Author(s):  
Srujan Mishra ◽  
Scott. P. Ahrenkiel

ABSTRACTA newly developed, focused-jet, vertical style electrospinning process was employed to synthesize nanofibers of TiO2 doped with 2% and 2.5% w/v Ag nanoparticles. The as-spun nanofibers were calcined at 510 °C for 24 h in a tube furnace, with a ramp-rate of 5 °C/min, to yield polycrystalline nanofibers. Structural characterization of the prepared nanofibers was done using HR-TEM operated at 200 kV. High-resolution lattice-fringe measurements showed the presence of a mixed-phase anatase and rutile TiO2 nanostructure along with elemental Ag nanoparticles. BET analysis showed an average specific surface-area of 18.31 m2/g for the catalyst nanofibers. To measure the photocatalytic activity, a model compound, rhodamine-B dye, was used. Experimental results showed decay rates of 10.64 x 10-3 min-1 and 12.32 x 10-3 min-1 for the decay of rhodamine-B dye by TiO2/2% Ag and TiO2/2.5% Ag nanoparticles respectively.


2007 ◽  
Vol 544-545 ◽  
pp. 103-106 ◽  
Author(s):  
Leticia M. Torres-Martínez ◽  
Lorena L. Garza-Tovar ◽  
M. Elena Meza-de la Rosa ◽  
A. Martínez-de la Cruz ◽  
Arquímedes Cruz-López

The catalytic photodegradation of Rhodamine B with UV irradiation over NaMO3 (M= Ta and Nb) doped with Y2O3, La2O3, Nd2O3 and Sm2O3 has been studied in our laboratories. All catalysts were characterized by different techniques such as X-ray powder diffraction (XRD) and thermal analysis (DTA/TGA). Surface characterization of the solids was carried out from adsorption isotherms and infrared spectroscopy (FTIR). The band gap energy (Eg) of materials ranged from 4.1 to 2.9 eV. For comparative purpose the materials studied as catalysts were also synthesized by classical solid state reaction.


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