2021
DOI: 10.3390/catal11010074
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Wastewater Contaminated with Hydrazine as Scavenger Agent for Hydrogen Production by Cu/Ti Nanostructures

Abstract: Cu/Ti photocatalysts were prepared by the sol-gel process with different copper loadings (1.0, 2.5, and 5.0 wt.%) and then thermally treated at several calcination temperatures from 400 to 600 °C. The materials were characterized by X-ray diffraction (XRD), N2 physisorption, Scanning Electronic Microscopy with Energy Dispersive X-ray Spectroscopy (SEM-EDS), Ultraviolet-visible-Diffuse Reflection Spectroscopy, Ultraviolet-visible spectroscopy as a function of the temperature, (Temperature Programmed Reduction) … Show more

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Cited by 5 publications
(3 citation statements)
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“…The Ti 3+ species was located at 458.62, 458.31, 457.72, and 456.88 eV, for Ti 2p 3/2 , respectively. Additionally, the photoelectronic splitting of Ti 2p 1/2 was located at 465.89, 464.25, 471.57, and 462.85 for Ti 3+ , respectively [65,67]. These results are in agreement with those previously reported in the literature [68][69][70][71].…”
Section: Xps Spectroscopy Analysissupporting
confidence: 92%
“…The Ti 3+ species was located at 458.62, 458.31, 457.72, and 456.88 eV, for Ti 2p 3/2 , respectively. Additionally, the photoelectronic splitting of Ti 2p 1/2 was located at 465.89, 464.25, 471.57, and 462.85 for Ti 3+ , respectively [65,67]. These results are in agreement with those previously reported in the literature [68][69][70][71].…”
Section: Xps Spectroscopy Analysissupporting
confidence: 92%
“…To the best of our knowledge, until recently, only one work has been published on the photocatalytic production of hydrogen from aqueous solutions of hydrazine; copper-doped titania-based photocatalysts were used. 78 However, in this work, the rates of hydrogen formation were an order of magnitude lower than in the current study; in addition, the authors did not provide the data on selectivity of the catalyst. Interestingly, the addition of the rate value under the illumination observed for the PtNi (4.5%)/C 3 N 4 catalyst is close to the net rate of H 2 generation observed for the same catalyst when TEOA was utilized as a sacrificial material (TEOA is routinely utilized to test the activity of g-C 3 N 4 -based photocatalysts and it does not decompose in the presence of catalyst without illumination).…”
Section: Preparation Of Pt−ni-supported Catalystscontrasting
confidence: 71%
“…Under irradiation of the system with a blue LED source (425 nm) the rate of H 2 generation increased up to 40% achieving the value of 5.2 μmol·min –1 . To the best of our knowledge, until recently, only one work has been published on the photocatalytic production of hydrogen from aqueous solutions of hydrazine; copper-doped titania-based photocatalysts were used . However, in this work, the rates of hydrogen formation were an order of magnitude lower than in the current study; in addition, the authors did not provide the data on selectivity of the catalyst.…”
Section: Resultsmentioning
confidence: 60%