Optical TiO2 layers deposited on polymer substrates by the Gas Injection Magnetron Sputtering technique

Choduń, Rafał; Skowroński, Łukasz; Okrasa, Sebastian; Wicher, B.; Nowakowska-Langier, Katarzyna; Zdunek, Krzysztof

doi:10.1016/j.apsusc.2018.10.003

Cited by 28 publications

(8 citation statements)

References 49 publications

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“…This result confirms the formation of a regular TiO 2 anatase phase which is the most common photocatalytic surface. Similar results were observed by other authors, who used the MS technique for undoped anatase and anatase/rutile TiO 2 film deposition onto various temperature-sensitive substrates [38][39][40].…”

Section: Resultssupporting

confidence: 90%

Photocatalytic Inactivation of Salmonella typhimurium by Floating Carbon-Doped TiO2 Photocatalyst

et al. 2021

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Photocatalysis application is considered as one of the most highly promising techniques for the reduction in wastewater pollution. However, the majority of highly efficient photocatalyst materials are obtained as fine powders, and this causes a lot of photocatalyst handling and reusability issues. The concept of the floating catalyst proposes the immobilization of a photocatalytic (nano)material on relatively large floating substrates and is considered as an encouraging way to overcome some of the most challenging photocatalysis issues. The purpose of this study is to examine floating photocatalyst application for Salmonella typhimurium bacteria inactivation in polluted water. More specifically, high-density polyethylene (HDPE) beads were used as a photocatalyst support for the immobilization of carbon-doped TiO2 films forming floating photocatalyst structures. Carbon-doped TiO2 films in both amorphous and anatase forms were deposited on HDPE beads using the low-temperature magnetron sputtering technique. Bacteria inactivation, together with cycling experiments, revealed promising results by decomposing more than 95% of Salmonella typhimurium bacteria in five consecutive treatment cycles. Additionally, a thorough analysis of the deposited carbon-doped TiO2 film was performed including morphology, elemental composition and mapping, structure, and depth profiling. The results demonstrate that the proposed method is a suitable technique for the formation of high-quality photocatalytic active films on thermal-sensitive substrates.

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Section: Resultssupporting

confidence: 90%

Photocatalytic Inactivation of Salmonella typhimurium by Floating Carbon-Doped TiO2 Photocatalyst

et al. 2021

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“…Obserwowane zmiany kształtu widm (rys. 5) odzwierciedlają bezpośrednio zmiany kolorów próbek [16][17][18]. W celu ich dokładniejszego opisania w przestrzeni barw CIELab wyznaczono koordynaty L * , a * i b * , zgodnie z następującymi równaniami [19,20]:…”

Section: Wyniki Badań I Ich Omówienieunclassified

Methodology for determining selected characteristics of polyethylene dyeing using CIELab system

2019

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Przedstawiono oryginalną metodę przygotowywania barwnych próbek z polietylenu, wykorzystaną do oceny zmiany barwy w skali CIELab, w wyniku zmieszania wybranych barwników. Do weryfikacji i oceny zmienności barwy serii próbek PE z udziałem czterech pigmentów (R, G, B, Y) wykorzystano spektrofotometr Cary 5000 rejestrujący widma odbiciowe odzwierciedlające efekt wzajemnego mieszania stosowanych w badaniach koncentratów barwiących. Słowa kluczowe: pomiary koloru, barwienie tworzyw, mieszanie i dozowanie tworzyw, metodyka przygotowania próbek.

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“…The pulse power density is of the order of 10 2 W/cm 2 . Despite the relatively high power density, the pulsed operation makes the condition for the film's growth at room temperature [33].…”

Section: Introductionmentioning

confidence: 99%

The Amorphous Carbon Thin Films Synthesized by Gas Injection Magnetron Sputtering Technique in Various Gas Atmospheres

et al. 2023

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This work presents the potential for using pulsed gas injection to produce amorphous carbon films. In this experiment, the frequency of injecting small amounts of gas was used to control the pressure amplitudes, thus achieving the conditions of plasma generation from stationary, through quasi-stationary, to pulsed oscillations of pressure. In addition, we used various gases and their mixtures, an alternative to argon. In the experiment, we studied the energy state of the plasma. The films were examined for phase and chemical composition, surface morphology, and optical and mechanical properties. We determined low-frequency pulsed gas injections to be conditions favorable for C(sp3) − C(sp3) bond formation. The plasma generated by gas injections is better ionized than that generated by static pressure. Pulsed conditions favor the plasma species to retain their kinetic energy, limiting the probability of intermolecular collision events. Since helium has a relatively high ionization energy, it is a practical addition to sputtering gas because of the increasing sp3 content in the films. The electrons created by helium ionization improve the plasma’s ionization degree.

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Optical TiO2 layers deposited on polymer substrates by the Gas Injection Magnetron Sputtering technique

Cited by 28 publications

References 49 publications

Photocatalytic Inactivation of Salmonella typhimurium by Floating Carbon-Doped TiO2 Photocatalyst

Photocatalytic Inactivation of Salmonella typhimurium by Floating Carbon-Doped TiO2 Photocatalyst

Methodology for determining selected characteristics of polyethylene dyeing using CIELab system

The Amorphous Carbon Thin Films Synthesized by Gas Injection Magnetron Sputtering Technique in Various Gas Atmospheres

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