Applied; Chemistry

Influence of the solid titanium source on the activity of La1_xTixFeO3 photo-CWPO catalysts under UV-A light

Autores: Garcia-Munoz, P; Fresno, F; Lefevre, C; Robert, D; Keller, N

Artículo.
Catal. Today. vol: 413. page: 0920-5861.
Fecha: mar-15. 2023.
Doi: 10.1016/j.cattod.2022.12.005.

Resumen:
In the search for more efficient low-temperature catalysts able to oxidise biorecalcitrant pollutants in water, the selective substitution of La3+ by Ti3+ cations was reported to boost the UV-A light driven activity of LaFeO3 orthoferrites as H2O2-mediated photo-CWPO [read more]

Solar hydrogen production from ethanol-water vapours over metal/TiO2 photocatalysts supported on ?-SiC alveolar foams

Autores: Garcia-Munoz, P; Ivanez, J; O’Shea, VAD; Keller, N; Fresno, F

Article.
Catal. Today. vol: 413. page: 0920-5861.
Fecha: mar-15. 2023.
Doi: 10.1016/j.cattod.2022.12.018.

Resumen:
In this work, we have explored the feasibility of alveolar open-cell beta-SiC foams as catalyst support for solar hydrogen production. For that purpose, Pt and Ru nanoparticles have been obtained, by means of photoassisted synthesis, on TiO2-coated foams [read more]

Silica supported spinel structured cobalt ferrite multifunctional nanocatalyst for hydration of nitriles and oxidative decarboxylation of phenylacetic acids

Autores: Hazarika, S; Borah, G

Article; Early Access.
Appl. Organomet. Chem.. vol: . page: 0268-2605.
Fecha: . .
Doi: 10.1002/aoc.6864.

Resumen:
The silica-supported cobalt ferrite spinel nanocatalyst has been successfully synthesized by the coprecipitation method and extensively characterized by FTIR, XRD, SEM-EDX, TEM, BET, VSM, XPS, TGA, and ICP-AES analysis. The bands observed at 3435 cm(-1) (nu (OH) of Si-OH) and 1637 [read more]

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

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

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

Resumen:
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]

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

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

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

Resumen:
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]

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

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

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

Resumen:
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]

Sustainable synthesis of semicrystalline Zr-BDC MOF and heterostructural Ag3PO4/Zr-BDC/g-C3N4 composite for photocatalytic dye degradation

Autores: Yassin, JM; Taddesse, AM; Sanchez-Sanchez, M

Artículo.
Catal. Today. vol: 390. page: 0920-5861.
Fecha: may-01. 2022.
Doi: 10.1016/j.cattod.2021.11.037.

Resumen:
Zr-based MOFs have stimulated the interest of scientific community due to their exceptional variety in composition, structure and chemical environment as well as their consequent applications including photo catalysis. This work presents the successful preparation of nanosized highly-porous Zr-BDC MOFs under sustainable [read more]

One-pot laccase@MOF biocatalysts efficiently remove bisphenol A from water

Autores: Molina, MA; Diez-Jaen, J; Sanchez-Sanchez, M; Blanco, RM

Artículo.
Catal. Today. vol: 390. page: 0920-5861.
Fecha: may-01. 2022.
Doi: 10.1016/j.cattod.2021.10.005.

Resumen:
fThe presence of bisphenol A (BPA) in wastewater, its toxicity and the hardness for its complete degradation constitutes a serious environmental problem and a scientific challenge. The enzyme laccase is an oxidoreductase capable of oxidizing phenolic compounds, being one of [read more]

Synthesis of cyclohexylphenol via phenol hydroalkylation using Co2P/zeolite catalysts

Autores: Gutierrez-Rubio, S; Shamzhy, M; Cejka, J; Serrano, DP; Coronado, JM; Moreno, I

Artículo.
Catal. Today. vol: 390. page: 0920-5861.
Fecha: may-01. 2022.
Doi: 10.1016/j.cattod.2021.11.039.

Resumen:
Cyclohexylphenol (CHP) is a high added-value chemical, extensively used for the preparation of dyes, resins and biocides. This molecule is currently synthetized by phenol alkylation with cyclohexene/cyclohexanol using highly polluting mineral Bronsted acids as catalysts. The [read more]

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

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

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

Resumen:
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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