Different Effects of Fluoride Surface Modification on the Photocatalytic Oxidation of Phenol in Anatase and Rutile TiO2Suspensions

2008 ◽  
Vol 31 (9) ◽  
pp. 1272-1276 ◽  
Author(s):  
K. Lv ◽  
C. S. Lu
2011 ◽  
Vol 106 (3-4) ◽  
pp. 559-564 ◽  
Author(s):  
Songmei Sun ◽  
Wenzhong Wang ◽  
Jiehui Xu ◽  
Lu Wang ◽  
Zhijie Zhang

2022 ◽  
Author(s):  
Mayur Baravkar ◽  
Prasad Bhagavatula

The oxidation of phenol leading to 1,4-hydroquinone with high conversion, remarkable selectivity and excellent yields (87% isolated) has been accomplished under electrolytic conditions in an aqueous medium employing carbon-based electrode....


2007 ◽  
Vol 50 (3) ◽  
pp. 379-384 ◽  
Author(s):  
WenXing Chen ◽  
ShiLiang Chen ◽  
ShenShui Lü ◽  
YuYuan Yao ◽  
MinHong Xu

1999 ◽  
Vol 14 (5) ◽  
pp. 2092-2095 ◽  
Author(s):  
M. Y. Han ◽  
W. Huang ◽  
C. H. Quek ◽  
L. M. Gan ◽  
C. H. Chew ◽  
...  

Highly photostable CdS nanoparticles modified with an alkyl group were prepared by an improved microemulsion technique using hexanethiol as cosurfactant. The surface-modified CdS nanoparticles catalyzed the photo-oxidation of 4-chlorophenol via continuously bubbling oxygen under uv light. The photocatalytic oxidation activity of the CdS nanoparticles was enhanced due to the formation of their compact CdS cores with strong chemical surface modification by heat treatment.


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.


Author(s):  
Niels R. Ostyn ◽  
Sreeprasanth Pulinthanathu Sree ◽  
Jin Li ◽  
Ji-Yu Feng ◽  
Maarten BJ Roeffaers ◽  
...  

Oxidative modification of graphene-based materials is an attractive route to functional materials. The use of strong oxidants to achieve surface modification of the carbon often leads to poor uniformity and...


2007 ◽  
Vol 46 (23) ◽  
pp. 7394-7409 ◽  
Author(s):  
Aaron Ortiz-Gomez ◽  
Benito Serrano-Rosales ◽  
Miguel Salaices ◽  
Hugo de Lasa

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