Physical; Engineering

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]

Synthesis of cyclohexylphenol via phenol hydroalkylation using Co2P/zeolite catalysts

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

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

Abstract:
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]

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

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

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

Abstract:
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]

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

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

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

Abstract:
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]

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]

Elucidating the structure of the W and Mn sites on the Mn-Na2WO4/SiO2 catalyst for the oxidative coupling of methane (OCM) at real reaction temperatures

Authors: Ortiz-Bravo, CA; Figueroa, SJA; Portela, R; Chagas, CA; Banares, MA; Toniolo, FS

Article.
J. Catal.. vol: 408. page: 0021-9517.
Date: APR. 2022.
Doi: 10.1016/j.jcat.2021.06.021.

Abstract:
The performance of the Mn-Na2WO4/SiO2 catalyst for oxidative coupling of methane (OCM) has been ascribed to crystalline phases that are not present at reaction temperatures (> 700 degrees C). The evolution of W and Mn sites [read more]

Impact of water matrix and oxidant agent on the solar assisted photodegradation of a complex mix of pesticides over titania-reduced graphene oxide nanocomposites

Authors: Luna-Sanguino, G; Ruiz-Delgado, A; Duran-Valle, CJ; Malato, S; Faraldos, M; Bahamonde, A

Article.
Catal. Today. vol: 380. page: 0920-5861.
Date: nov-15. 2021.
Doi: 10.1016/j.cattod.2021.03.022.

Abstract:
New titania-reduced graphene oxide (TiO2-rGO) nanocomposites have been studied to assess their application in the solar assisted photodegradation of a complex mixing of pesticides (pyrimethanil, isoproturon, alachlor and methomyl) at solar pilot plant, opening the opportunity [read more]

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