Chemical

Immobilization-stabilization of the dimeric D-amino acid oxidase from porcine kidney

Authors: Carballares, D; Fernandez-Lafuente, R; Rocha-Martin, J

Article.
Process Biochem.. vol: 122. page: 1359-5113.
Date: NOV. 2022.
Doi: 10.1016/j.procbio.2022.10.002.

Abstract:
This paper shows the immobilization of the dimeric D-amino acid oxidase (DAAO) following different methodologies. Immobilization on glyoxyl-agarose yielded activity recoveries under 5%, and it was discarded. The anion exchange on aminated supports permits the rapid enzyme immobilization, but its activity decreased [read more]

Shepherding reaction intermediates to optimize H-2 yield using composite-doped TiO2-based photocatalysts

Authors: Barba-Nieto, I; Colon, G; Fernandez-Garcia, M; Kubacka, A

Article.
Chem. Eng. J.. vol: 442. page: 1385-8947.
Date: AUG 15. 2022.
Doi: 10.1016/j.cej.2022.136333.

Abstract:
Optimization of Pt-promoted TiO2-based is key to promote the photocatalytic production of hydrogen using sacrificial alcohol molecules. Combination of doping and surface decoration of the mentioned base photoactive material is here exploited to maximize hydrogen yield. Using the [read more]

Influence of W loading, support type, and preparation method on the performance of zirconia or alumina-supported Pt catalysts for n-dodecane hydroisomerization

Authors: Garcia-Perez, D; Blanco-Brieva, G; Alvarez-Galvan, MC; Campos-Martin, JM

Article.
Fuel. vol: 319. page: 0016-2361.
Date: jul-01. 2022.
Doi: 10.1016/j.fuel.2022.123704.

Abstract:
Catalysts based on zirconia and alumina-supported tungsten oxides (3-18 wt% W) with a small loading of platinum (0.3 wt% Pt) were selected to study the influence of W loading, support type, and preparation methods on the hydroisomerization of n-dodecane. The alumina-and [read more]

Surfactant-induced hierarchically porous MOF-based catalysts prepared under sustainable conditions and their ability to remove bisphenol A from aqueous solutions

Authors: Molina, MA; Habib, NR; Diaz, I; Sanchez-Sanchez, M

Article.
Catal. Today. vol: 394. page: 0920-5861.
Date: jul-01. 2022.
Doi: 10.1016/j.cattod.2021.10.019.

Abstract:
Metal-Organic Frameworks (MOFs) are extensively used in different applications, including heterogeneous catalysis given the fact that practically any center can be designed on demand and is accessible for reactants. Just like any other microporous catalysts, the limited diffusion of reactants [read more]

Role of alkali-cyano group interaction in g-C3N4 based catalysts for hydrogen photo-production

Authors: Caudillo-Flores, U; Ares-Dorado, A; Alonso-Nunez, G; Tudela, D; Fernandez-Garcia, M; Kubacka, A

Article.
Catal. Today. vol: 394. page: 0920-5861.
Date: jul-01. 2022.
Doi: 10.1016/j.cattod.2021.06.028.

Abstract:
Carbon nitride based materials incorporating K and Na alkali ions were used as support(s) to deposit platinum. The systems were tested in the photo-production of hydrogen using methanol as a sacrificial molecule. Tests under UV and [read more]

ZnO-functionalized fly-ash based zeolite for ciprofloxacin antibiotic degradation and pathogen inactivation

Authors: Amariei, G; Valenzuela, L; Iglesias-Juez, A; Rosal, R; Visa, M

Article.
J. Environ. Chem. Eng.. vol: 10. page: 2213-2929.
Date: JUN. 2022.
Doi: 10.1016/j.jece.2022.107603.

Abstract:
There is an increasing need for photocatalytic materials capable to remove pollutants and to deactivate microorganisms for a wide range of applications. Here we report the preparation of fly ash-based zeolite material in which ZnO was [read more]

Eco-friendly mechanochemical synthesis of titania-graphene nanocomposites for pesticide photodegradation

Authors: Gonzalez, VJ; Vazquez, E; Villajos, B; Tolosana-Moranchel, A; Duran-Valle, C; Faraldos, M; Bahamonde, A

Article.
Sep. Purif. Technol.. vol: 289. page: 1383-5866.
Date: may-15. 2022.
Doi: 10.1016/j.seppur.2022.120638.

Abstract:
Titania graphene hybrid nanocomposites (TiO2-FLG) synthesized from graphite and TiO2 precursors, in a simple and sustainable approach via a three-step method, including the mechanochemical treatment of pre-synthesized FLG and TiO2 NPs are efficient [read more]

2022-06-08T09:21:38+02:00Categories: Highlights, Publications 2022|Tags: , |

The effect of non-ionic surfactants on the sustainable synthesis of selected MOFs

Authors: Habib, NR; Sainz, R; Taddesse, AM; Diaz, I

Article.
Catal. Today. vol: 390. page: 0920-5861.
Date: may-01. 2022.
Doi: 10.1016/j.cattod.2021.09.028.

Abstract:
The MOFs selected in this work are NH2-MIL-53(Al), MIL-100(Fe) and UiO-66 type (Zr-BDC and NH2-Zr-BDC). We have tried to assist the sustainable synthesis of MOFs, at room temperature and in water as a solvent, with the presence of non-ionic surfactants: [read more]

Ti-PMO materials as selective catalysts for the epoxidation of cyclohexene and vernonia oil

Authors: Awoke, Y; Chebude, Y; Diaz, I

Article.
Catal. Today. vol: 390. page: 0920-5861.
Date: may-01. 2022.
Doi: 10.1016/j.cattod.2021.10.010.

Abstract:
The aim of this study is to obtain Ti-containing Periodic Mesoporous Organosilica (PMO) materials with catalytic activity in epoxidation reactions. Characterization of the PMO materials using X ray diffraction, N-2 sorption isotherms, chemical analysis (ICP-OES) and UV-vis spectroscopy reveals that the Ti-PMO [read more]

Semiamorphous Fe-BDC: The missing link between the highly-demanded iron carboxylate MOF catalysts

Authors: Flores, JG; Delgado-Garcia, R; Sanchez-Sanchez, M

Article.
Catal. Today. vol: 390. page: 0920-5861.
Date: may-01. 2022.
Doi: 10.1016/j.cattod.2021.11.004.

Abstract:
Porous Fe carboxylates are amongst the most promising MOF-based materials due to their low price, low toxicity, metal environments (including open metal sites) and remarkable (meso)porosity variety. Fe-MOFs based on the cluster [Fe3O(X)(solvent)(2)](6+), that is, MIL-101(Fe), MIL-100(Fe) and semiamorphous Fe-BTC, are of [read more]

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