Engineering

Strong effect of light scattering by distribution of TiO2 particle aggregates on photocatalytic efficiency in aqueous suspensions

Authors: Tolosana-Moranchel, A; Pecharroman, C; Faraldos, M; Bahamonde, A Article. Chem. Eng. J.. vol: 403. page: 1385-8947. Date: JAN 1. 2021. Doi: 10.1016/j.cej.2020.126186. Abstract: This work examines the important role of light power absorbed by TiO2 on the photocatalytic degradation of dichloroacetic acid (DCA) in a semi-continuous slurry photoreactor with UV-Vis radiation. This system is an [leer más]

Glycerol Oxidation over Supported Gold Catalysts: The Combined Effect of Au Particle Size and Basicity of Support

Authors: Pakrieva, E; Kolobova, E; German, D; Stucchi, M; Villa, A; Prati, L; Carabineiro, SAC; Bogdanchikova, N; Corberan, VC; Pestryakov, A Article. Processes. vol: 8. page: . Date: SEP. 2020. Doi: 10.3390/pr8091016. Abstract: Gold nanoparticles supported on various oxides (CeO2, CeO2/TiO2, MgO, MgO/TiO2, La2O3, La2O3/TiO2) (with 4 wt.% Au loading) were investigated in the liquid (aqueous) [leer más]

2020-09-05T00:00:00+02:00Categories: Publicaciones 2020|Tags: , |

g-C3N4/TiO2 composite catalysts for the photo-oxidation of toluene: Chemical and charge handling effects

Authors: Caudillo-Flores, U; Munoz-Batista, MJ; Luque, R; Fernandez-Garcia, M; Kubacka, A

Article.
Chem. Eng. J.. vol: 378. page: 1385-8947.
Date: DEC 15. 2019.
Doi: 10.1016/j.cej.2019.122228.

Abstract:
The interaction between carbon nitride and titania in g-C3N4/TiO2 materials is analyzed from a new perspective. The composite materials are prepared using a well crystallized anatase substrate over which carbon nitride (0.5-4 wt%, promoted or not [leer más]

TiO2-rGO photocatalytic degradation of an emerging pollutant: kinetic modelling and determination of intrinsic kinetic parameters

Authors: Tolosana-Moranchel, A; Manassero, A; Satuf, ML; Alfano, OM; Casas, JA; Bahamonde, A

Article.
J. Environ. Chem. Eng.. vol: 7. page: 2213-2929.
Date: OCT. 2019.
Doi: 10.1016/j.jece.2019.103406.

Abstract:
An intrinsic kinetic model, derived from a suggested reaction photo-mechanism and with an explicit dependence on the local volumetric rate of photon absorption (LVRPA), was developed to simulate the photocatalytic degradation of clofibric acid [leer más]

Characterization and performance of Cu2O nanostructures on Cu wire photocatalyst synthesized in-situ by chemical and thermal oxidation

Authors: Ansari, F; Sheibani, S; Fernandez-Garcia, M

Article.
J. Mater. Sci.-Mater. Electron.. vol: 30. page: 0957-4522.
Date: JUL. 2019.
Doi: 10.1007/s10854-019-01745-8.

Abstract:
In this study, Cu2O nanostructures on Cu wire were formed with in situ chemical and then thermal oxidation to obtain the desirable structure, morphology and optical properties in order to enhance visible-light photocatalytic activity. The findings suggested that the procedure [leer más]

An approach on the comparative behavior of chloro / nitro substituted phenols photocatalytic degradation in water

Authors: Tolosana-Moranchel, A; Ovejero, D; Barco, B; Bahamonde, A; Diaz, E; Faraldos, M

Article.
J. Environ. Chem. Eng.. vol: 7. page: 2213-2929.
Date: JUN. 2019.
Doi: 10.1016/j.jece.2019.103051.

Abstract:
The study of position and number of substituents on the photocatalytic removal of some mono-, di- and tri-, chloro- and nitrophenols, as well as more known initial TOC concentration effect, has revealed the noteworthy [leer más]

Enhancing the fracture toughness of hierarchical composites through amino-functionalised carbon nanotube webs

Authors: Nistal, A; Falzon, BG; Hawkins, SC; Chitwan, R; Garcia-Diego, C; Rubio, F

Article.
Compos. Pt. B-Eng.. vol: 165. page: 1359-8368.
Date: may-15. 2019.
Doi: 10.1016/j.compositesb.2019.02.001.

Abstract:
The introduction of carbon nanotubes (CNTs) in structural fibre-reinforced polymers, to imbue the composite with multifunctional properties (e.g. enhancing electrical/thermal conductivity, structural health monitoring), has received much attention in recent years. Maintaining, and preferably enhancing, [leer más]

Antimicrobial surfaces with self-cleaning properties functionalized by photocatalytic ZnO electrosprayed coatings

Authors: Valenzuela, L; Iglesias, A; Faraldos, M; Bahamonde, A; Rosal, R

Article.
J. Hazard. Mater.. vol: 369. page: 0304-3894.
Date: may-05. 2019.
Doi: 10.1016/j.jhazmat.2019.02.073.

Abstract:
Photoactive coatings of sol-gel ZnO suspensions were electrosprayed on glass substrates to produce self-cleaning antimicrobial functionalized surfaces. ZnO-functionalized materials exhibited a uniform external surface consisting of a pattern of microspheres with diameters in the 100-300 nm range. [leer más]

Trimetallic RuxMoNi Catalysts Supported on SBA-15 for the Hydrodesulfurization of Dibenzothiophene

Authors: Torres-Garcia, NL; Huirache-Acuna, R; Zepeda-Partida, TA; Pawelec, B; Fierro, JLG; Vazquez-Salas, PJ; Maya-Yescas, R; Rivera-Garnica, JM

Article.
Int. J. Chem. React. Eng.. vol: 17. page: 2194-5748.
Date: MAY. 2019.
Doi: 10.1515/ijcre-2017-0264.

Abstract:
In this work, novel trimetallic catalysts based on transition metal sulphides (Ru, Mo and Ni) supported on SBA-15 were synthesized. Citric acid (CA) was used as chelating agent in [leer más]

2019-05-04T00:00:00+02:00Categories: Publicaciones 2019|Tags: , |

Elucidation of the photocatalytic-mechanism of phenolic compounds

Authors: Tolosana-Moranchel, A; Montejano, A; Casas, JA; Bahamonde, A

Article.
J. Environ. Chem. Eng.. vol: 6. page: 2213-2929.
Date: OCT. 2018.
Doi: 10.1016/j.jece.2018.08.068.

Abstract:
In the present work, phenol and other phenolic compounds (4-chlorophenol, 4-nitrophenol and methyl p-hydroxybenzoate) as typical aromatic pollutants were selected to investigate and elucidate their photocatalytic-mechanism over two commercial TiO2 catalysts: Hombikat UV-100 and Aeroxide (R) P25, with [leer más]

2018-10-29T20:18:00+01:00Categories: Publicaciones 2018|Tags: , |

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