scholarly journals Catalytic and photocatalytic oxidation of diphenyl sulphide to diphenyl sulfoxide over titanium dioxide doped with vanadium, zinc, and tin

RSC Advances ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 4023-4031 ◽  
Author(s):  
Marcelina Radko ◽  
Andrzej Kowalczyk ◽  
Paweł Mikrut ◽  
Stefan Witkowski ◽  
Włodzimierz Mozgawa ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Phase Transitions ◽  
Uv Radiation ◽  
Photocatalytic Oxidation ◽  
S Oxidation

Phase transitions of rutile and anatase were directed by V, Zn and Sn admixtures. Rutile containing catalysts were more active in Ph2S oxidation than pure anatase samples. Efficiency of Ph2S oxidation was significantly improved under UV radiation.

Photocatalytic Oxidation of Shenfu Bituminous Coal and Xilinhaote Lignite with H2O2 over TiO2

2011 ◽  
Vol 233-235 ◽  
pp. 1684-1689 ◽  
Author(s):  
Heng Shen Xie ◽  
Zhi Min Zong ◽  
Qing Wei ◽  
Pei Zhi Zhao ◽  
Jian Jun Zhao ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Titanium Dioxide ◽  
Catalytic Oxidation ◽  
Photocatalytic Oxidation ◽  
Bituminous Coal ◽  
Straight Chain ◽  
Photo Catalytic Oxidation ◽  
Alkyl Side Chains ◽  
Lignite Coal ◽  
Oxidation Effect

Shenfu bituminous coal (SFBC) and Xilinhaote lignite (XL) were subject to photo-catalytic oxidation with hydrogen peroxide over titanium dioxide. The reaction mixtures were extracted with acetone exhaustively. The extracts were analyzed with FTIR and GC/MS. The results show that coals be oxidized selectively and degraded partially. Compared with the bituminite coal, the oxidation effect of the lignite coal with active hydrogens is more obvious. The alkyl side chains of the macromolecules, particularly, chains of methyl, methylene and aromatic, are the most vulnerable in relation to other compounds in coals. Moreover, the increasing of straight-chain alkanes and the decreasing of condensed nucleus in SFBC and XL through oxidation suggest that the oxidation is an effective method of coal utilization with no difficultly, also be friendly towards the environment after treated as well as in the process of the treatment.

Gas-phase photocatalytic oxidation of benzene over titanium dioxide loaded on Ce0.67Zr0.33O2

2009 ◽  
Vol 28 (4) ◽  
pp. 519-524 ◽  
Author(s):  
Zhong Junbo ◽  
Jiang Weidong ◽  
Xu Bin ◽  
He Xiyang ◽  
Li Jianzhang ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Gas Phase ◽  
Photocatalytic Oxidation ◽  
Oxidation Of Benzene

scholarly journals Selective photocatalytic oxidation of benzene for the synthesis of phenol using engineered Au–Pd alloy nanoparticles supported on titanium dioxide

2014 ◽  
Vol 50 (84) ◽  
pp. 12612-12614 ◽  
Author(s):  
Ren Su ◽  
Lokesh Kesavan ◽  
Mads M. Jensen ◽  
Ramchandra Tiruvalam ◽  
Qian He ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Oxidation ◽  
Alloy Nanoparticles ◽  
Pd Alloy ◽  
Oxidation Of Benzene

Location of photocatalytic oxidation processes on anatase titanium dioxide

2017 ◽  
Vol 7 (2) ◽  
pp. 441-451 ◽  
Author(s):  
Xuan Hao Lin ◽  
Yijia Miao ◽  
Sam Fong Yau Li
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Oxidation ◽  
Detailed Mechanism ◽  
Oxidation Processes ◽  
Degradation Processes

The detailed mechanism of photocatalytic oxidation processes on the TiO2 surface is still not completely clear, particularly the location of degradation processes.

scholarly journals Phenol Removal by a Novel Non-Photo-Dependent Semiconductor Catalyst in a Pilot-Scaled Study: Effects of Initial Phenol Concentration, Light, and Catalyst Loading

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Xiao Chen ◽  
Yan Liang ◽  
Xuefei Zhou ◽  
Yanling Zhang
Keyword(s):  
Titanium Dioxide ◽  
Uv Radiation ◽  
Phenol Degradation ◽  
Phenol Concentration ◽  
Catalyst Loading ◽  
Phenol Removal ◽  
Operational Parameters ◽  
Initial Concentration ◽  
Light Area ◽  
Initial Phenol Concentration

A novel non-photo-dependent semiconductor catalyst (CT) was employed to degrade phenol in the present pilot-scaled study. Effect of operational parameters such as phenol initial concentration, light area, and catalyst loading on phenol degradation, was compared between CT catalyst and the conventional photocatalyst titanium dioxide. CT catalyst excelled titanium dioxide in treating and mineralizing low-level phenol, under both mild UV radiation and thunder conditions of nonphoton. The result suggested that CT catalyst could be applied in circumstances when light is not easily accessible in pollutant-carrying media (e.g., particles, cloudy water, and colored water).

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