Photocatalytically Active TiO<sub>2</sub>/Ag<sub>2</sub>O Nanotube Arrays Interlaced with Silver Nanoparticles Obtained from the One-Step Anodic Oxidation of Ti–Ag Alloys

Mazierski, Paweł; Malankowska, Anna; Kobylański, Marek P.; Diak, Magdalena; Kozak, Magda; Winiarski, Michał J.; Klimczuk, Tomasz; Lisowski, Wojciech; Nowaczyk, Grzegorz

doi:10.1021/acscatal.7b00056

Cited by 78 publications

(57 citation statements)

References 73 publications

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“…Different from the aforementioned NiO, Ag° can be in situ formed from the partial reduction of Ag + in Ag 2 O by photoinduced electrons . The metallic Ag on the surface of Ag 2 O–TiO 2 not only absorbs the visible light and exhibits local field enhancement induced by SPR effect, but also acts as electron reservoirs and facilitates the electron transfer from the CB of p‐type Ag 2 O to that of n‐type TiO 2 …”

Section: Graphene and Metal Compound Cocatalystsmentioning

confidence: 99%

Dual Cocatalysts in TiO₂ Photocatalysis

et al. 2019

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became a Professor at Wuhan University of Technology. His current research interests include semiconductor photocatalysis, photocatalytic hydrogen production, CO 2 reduction to hydrocarbon fuels, and so on.such as noble metals, non-noble metals, metal oxides (e.g., CuO and NiO), [28,40] metal hydroxides, metal sulfides, metal phosphides (e.g., Co 2 P and Ni 2 P) [53,54] and carbonaceous materials. By contrast, some transition metal oxides (e.g., MnO x , CoO x , and Fe 2 O 3 ) [12,22,64] and phosphide (e.g., Co-Pi) [65] are used as oxidation cocatalysts for photocatalytic oxygen evolution reaction and photocatalytic degradation of pollutants.

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Section: Graphene and Metal Compound Cocatalystsmentioning

confidence: 99%

Dual Cocatalysts in TiO₂ Photocatalysis

et al. 2019

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“…Titania nanotubes, nanowires, 1D-oriented nanopores, and other 1D nanostructures (such as nanorods) have been extensively investigated for various applications, including solar cells, photocatalysis, batteries, filtration membranes, biomedical use, and as templates for the synthesis of other nanostructures [5,[130][131][132][133]. Kasuga et al were probably the first who prepared titania nanotubes (TNTs) by the chemical method [134,135], whereas Imai et al obtained TNTs in porous alumina membrane by a deposition technique [136].…”

Section: One-dimensional Titaniamentioning

confidence: 99%

“…It should be pointed that different morphologies could be obtained by changing the anodization conditions, e.g., TNTs, as well as the mesoporous and nanoporous structures, as shown in Figure 11. Recently, a very interesting approach has been proposed by the Zaleska-Medynska group, i.e., the anodization of titanium alloys to prepare modified titania by a one-step reaction, e.g., TiO 2 /Ag 2 O/Ag [132] and TiO 2 /Cu x O y [131] from Ti/Ag and Ti/Cu alloys, respectively. alumina membrane by a deposition technique [136].…”

Section: One-dimensional Titaniamentioning

confidence: 99%

Morphology- and Crystalline Composition-Governed Activity of Titania-Based Photocatalysts: Overview and Perspective

et al. 2019

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Titania photocatalysts have been intensively examined for both mechanism study and possible commercial applications for more than 30 years. Although various reports have already been published on titania, including comprehensive review papers, the morphology-governed activity, especially for novel nanostructures, has not been reviewed recently. Therefore, this paper presents novel, attractive, and prospective titania photocatalysts, including zero-, one-, two-, and three-dimensional titania structures. The 1D, 2D, and 3D titania structures have been mainly designed for possible applications, e.g., (i) continuous use without the necessity of particulate titania separation, (ii) efficient light harvesting (e.g., inverse opals), (iii) enhanced activity (fast charge carriers' separation, e.g., 1D nanoplates and 2D nanotubes). It should be pointed out that these structures might be also useful for mechanism investigation, e.g., (i) 3D titania aerogels with gold either incorporated inside the 3D network or supported in the porosity, and (ii) titania mesocrystals with gold deposited either on basal or lateral surfaces, for the clarification of plasmonic photocatalysis. Moreover, 0D nanostructures of special composition and morphology, e.g., magnetic(core)-titania(shell), mixed-phase titania (anatase/rutile/brookite), and faceted titania NPs have been presented, due to their exceptional properties, including easy separation in the magnetic field, high activity, and mechanism clarification, respectively. Although anatase has been usually thought as the most active phase of titania, the co-existence of other crystalline phases accelerates the photocatalytic activity significantly, and thus mixed-phase titania (e.g., famous P25) exhibits high photocatalytic activity for both oxidation and reduction reactions. It is believed that this review might be useful for the architecture design of novel nanomaterials for broad and diverse applications, including environmental purification, energy conversion, synthesis and preparation of "intelligent" surfaces with self-cleaning, antifogging, and antiseptic properties.

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“…In recent years, there have been a concentration of efforts on the synthesis of highly active titanium dioxide catalysts [14][15][16][17] and more importantly, design of reactors for heterogeneous photocatalysis. This has led to different reactor configurations being reported in the research literature [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…of TiO 2 thin films have been widely reported in the literature[14][15][16][17]. The basic properties of a simple immobilised catalyst film, on the modified Rushton impellers in the PIR reactor configuration is sufficient in eliminating mass transfer limitations.…”

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confidence: 99%