Adsorption and Photocatalytic Decomposition of the -Blocker Metoprolol in Aqueous Titanium Dioxide Suspensions: Kinetics, Intermediates, and Degradation Pathways

RSC Advances ◽  
2017 ◽  
Vol 7 (34) ◽  
pp. 21273-21280 ◽  
Author(s):  
Yi Liu ◽  
Blake Becker ◽  
Brandon Burdine ◽  
Ginger E. Sigmon ◽  
Peter C. Burns

Mesoporous uranium-doped TiO2 anatase materials were studied to determine the influence of U-doping on the photocatalytic properties for Rhodamine B (RhB) degradation.


2010 ◽  
Vol 98 (3-4) ◽  
pp. 122-131 ◽  
Author(s):  
Laura Lagunas-Allué ◽  
María-Teresa Martínez-Soria ◽  
Jesús Sanz-Asensio ◽  
Arnaud Salvador ◽  
Corinne Ferronato ◽  
...  

2021 ◽  
Author(s):  
Haruna Adamu

TiO2 nanoparticles have been extensively investigated for environmental applications, particularly in the photocatalytic decomposition of organic pollutants using solar energy. The TiO2-derived photocatalysts attract attention because of their photocatalytic efficiency and activity under a wide range of environmental conditions in response to superior structural and electronic properties. Consequently, TiO2 compares with other common semiconductors used for environmental photocatalytic applications, TiO2 is widely being considered close to an ideal semiconductor for photocatalysis. However, despite the impressive photocatalytic and material properties of titanium dioxide, TiO2 has not to this point been incorporated within commercial hub of oil spill remediation products. Therefore, this chapter covers the description of inevitable technical details required for unveiling the full potential of solar-driven photooxidation potency of TiO2, which have been the major challenges that halt its translation to commercial use in oil spill remediation. This at the end would underpin and make TiO2-derived materials a substitute ready to be commercially accepted as a promising method for remediation of oil-polluted aquatic and soil environments.


2006 ◽  
Vol 2006 ◽  
pp. 1-7 ◽  
Author(s):  
Joanna Grzechulska-Damszel ◽  
Antoni W. Morawski ◽  
Barbara Grzmil

Two kinds of titanium dioxide were used as starting materials for thermal modification: Tytanpol A11 supplied by Chemical Factory “Police” S.A. (Poland) and Degussa P25 supplied by Degussa AG (Germany). The photocatalytic activity of titania materials modified by thermal treatment was tested in the reaction of photocatalytic oxidation of phenol. It was found that the highest activity in the reaction of photocatalytic decomposition of phenol, in case of Tytanpol A11, shows the samples of material modified at temperatures of 700 and 750°C. These catalysts were more active than untreated A11, whereas materials modified at higher temperatures show lower activity. In the case of P25, all thermally treated materials were less active than the unmodified material. The photocatalyst samples were characterized by UV-Vis/DR, FTIR/DRS, and XRD methods.


Eisei kagaku ◽  
1996 ◽  
Vol 42 (1) ◽  
pp. 44-52 ◽  
Author(s):  
SHUNJIRO OGAWA ◽  
KAZUHIRO NOZAWA ◽  
YUKIKO HANASAKI ◽  
TERUHISA HIRAYAMA

Chemosphere ◽  
1995 ◽  
Vol 30 (5) ◽  
pp. 965-984 ◽  
Author(s):  
John C. Ireland ◽  
Brunilda Dávila ◽  
Hector Moreno ◽  
Shannon K. Fink ◽  
Stephanie Tassos

2018 ◽  
Vol 59 ◽  
pp. 00017
Author(s):  
Kamil Kuźmiński ◽  
Antoni W. Morawski ◽  
Magdalena Janus

In these studies advanced oxidation processes such as: photolysis, ozonation and photocatalysis for anionic and cationic surfactants decomposition were used. Nitrogen modified titanium dioxide and commercial TiO2-P25 were used for photocatalytic tests. UV-C lamp and different dose of ozone: 186, 383, 478 and 563 mg/(dm3·h) were used. The optimal system for anionic and cationic surfactants decomposition was connection of ozonation with UV-C irradiation.


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