scholarly journals Degradation of Ethylene Glycol Through Photo-Fenton Heterogeneous System

2019 ◽  
Vol 18 (35) ◽  
pp. 91-109
Author(s):  
Alba Nelly Ardila-Arias ◽  
Eliana Berrío-Mesa ◽  
Erasmo Arriola-Villaseñor ◽  
William Fernando Álvarez-Gómez ◽  
José Alfredo Hernández-Maldonado ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Heterogeneous System ◽  
Sol Gel ◽  
Catalytic Performance ◽  
Gel Method ◽  
Doped Tio2 ◽  
Sol Gel Method ◽  
Iron Doped ◽  
Initial Ph ◽  
Doped Materials

This work describes the ethylene glycol degradation in a photo-Fenton heterogeneous system. Iron-doped TiO2 photocatalysts prepared by different methods (incipient wet impregnation and sol-gel method), as well as the corresponding un-doped material were examined in this process. Different values of initial pH and H2O2 concentration were tested during the experiments. A lower photoactivity was observed for the un-doped materials than for the Fe-doped materials. Optimum results of initial pH and H2O2 concentrations were found to be 3.0 and 1,000 mg/L, respectively.  Furthermore, the highest degradation percentage of ethylene glycol (61 %) was achieved for the material synthetized by sol-gel method. Such catalytic performance is explained on the basis of structural/morphological and electronic characterization results, reached by XRD, UV-vis DRS and XPS techniques. To the best of our knowledge, this is the first report related with the ethylene glycol degradation using Iron-doped TiO2 in a photo-Fenton heterogeneous system.

scholarly journals The effects of calcination atmosphere on the catalytic performance of Ce-doped TiO2 catalysts for selective catalytic reduction of NO with NH3

RSC Advances ◽  
2017 ◽  
Vol 7 (38) ◽  
pp. 23348-23354 ◽  
Author(s):  
Yiqing Zeng ◽  
Shule Zhang ◽  
Yanan Wang ◽  
Guangli Liu ◽  
Qin Zhong
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Sol Gel ◽  
Catalytic Performance ◽  
Reduction Of No ◽  
Gel Method ◽  
Doped Tio2 ◽  
Sol Gel Method ◽  
Calcination Atmosphere

A series of well-reported Cex–Ti catalysts with a low content of Ce species were synthesized by a sol–gel method.

Study on photocatalytic degradation of gaseous dichloromethane using pure and iron ion-doped TiO2 prepared by the sol–gel method

Chemosphere ◽  
2007 ◽  
Vol 66 (11) ◽  
pp. 2142-2151 ◽  
Author(s):  
Wen-Chi Hung ◽  
Ssu-Han Fu ◽  
Jeou-Jen Tseng ◽  
Hsin Chu ◽  
Tzu-Hsing Ko
Keyword(s):  
Photocatalytic Degradation ◽  
Sol Gel ◽  
Iron Ion ◽  
Gel Method ◽  
Doped Tio2 ◽  
Sol Gel Method

scholarly journals Synthesis of Spherical Silica by Sol-Gel Method and Its Application as Catalyst Support

2011 ◽  
Vol 10 (2) ◽  
pp. 25
Author(s):  
Anirut Leksomboon ◽  
Bunjerd Jongsomjit
Keyword(s):  
Particle Size ◽  
Ethylene Glycol ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Sol Gel ◽  
Weight Ratio ◽  
Gel Method ◽  
Sol Gel Method ◽  
Spherical Silica

In this present study, the spherical silica support was synthesized from tetraethyloxysilane (TEOS), water, sodium hydroxide, ethylene glycol and n-dodecyltrimethyl ammonium bromide (C12TMABr). The particle size was controlled by variation of the ethylene glycol co-solvent weight ratio of a sol-gel method preparation in the range of 0.10 to 0.50. In addition, the particle size apparently increases with high weight ratio of co-solvent, but the particle size distribution was broader. The standard deviation of particle diameter is large when the co-solvent weight ratio is more than 0.35 and less than 0.15. However, the specific surface area was similar for all weight ratios ranging from 1000 to 1300 m2/g. The synthesized silica was spherical and has high specific surface area. The cobalt was impregnated onto the obtained silica to produce the cobalt catalyst used for CO2 hydrogenation.</

scholarly journals Structural, optical, and magnetic study of Ni-doped TiO2 nanoparticles synthesized by sol–gel method

2018 ◽  
Vol 8 (1) ◽  
pp. 1-8 ◽  
Author(s):  
M. Manzoor ◽  
A. Rafiq ◽  
M. Ikram ◽  
M. Nafees ◽  
S. Ali
Keyword(s):  
Tio2 Nanoparticles ◽  
Sol Gel ◽  
Magnetic Study ◽  
Gel Method ◽  
Doped Tio2 ◽  
Sol Gel Method
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