Rapid degradation of Omeprazole and highly effective inactivation of E. coli in the UVA-light photocatalytic process with Cu-doped in spinel-structured ɣAl2O3 as a stable catalyst

Ostovar, Somayeh; Moussavi, Gholamreza; Mohammadi, Samira; Marin, Maria Luisa; Bosca, Francisco; Diego-Lopez, Ander; Giannakis, Stefanos

doi:10.1016/j.cej.2023.147536

Cited by 2 publications

(2 citation statements)

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“…The O 1s spectra of the CuO/Al 2 O 3 as-catalyst were divided into three peaks using the Gauss decomposition method. According to a previous study [34], the lowest binding energy corresponds to lattice oxygen (O α ) in mixed metal oxide, the medium binding energy is assigned to surface-adsorbed oxygen (O β ) species, and the highest binding energy is attributed to surface hydroxyl species (O γ ). Here, three peaks centering on 529.5 eV (O α ), 531.0 eV (O β ), and 532 eV (O γ ) are assignable to lattice oxygen (Al-O, Cu-O), chemically adsorbed oxygen, and adsorbed water [35].…”

Section: Surface Characterization Of the Two Materialsmentioning

confidence: 88%

Section: Surface Characterization Of the Two Materialsmentioning

confidence: 90%

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Forming a Cu-Based Catalyst for Efficient Hydrogenation Conversion of Starch into Glucose

Zhu,

Li,

Cheng

et al. 2024

Catalysts

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A pellet-forming as-catalyst, CuO/Al2O3, was prepared by the precipitation–tablet molding method and characterized by the Brunner–Emmet–Teller (BET), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM) techniques and TEM. The characterization results showed that the formed CuO/Al2O3 was in situ reduced to Cu/Al2O3 and Cu2O/ Al2O3 catalysts in the reaction system. The catalytic performance of catalyzing hydrogenation starch into glucose was investigated in an autoclave over CuO/Al2O3. The yield of glucose reached 83.16% at a temperature of 160 °C, a pressure of 1.8 MPa, a 100 g starch solution of 15 wt%, a catalyst dosage of 2.25%, a reaction time of 4 h, and a rotational speed of 630 r/min. The reusability of the catalyst was evaluated, and the glucose yield did not decrease obviously even after being reused for five consecutive cycles. Starch was converted into glucose through the synergistic action of Cu+ and Cu0 catalysis. This work is expected to provide valuable insights into the design of catalysts and the hydrogenation process for efficient starch hydrogenation.

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Section: Surface Characterization Of the Two Materialsmentioning

confidence: 88%

Section: Surface Characterization Of the Two Materialsmentioning

confidence: 90%