Photoinitiation of acrylamide polymerization by Fe2O3 nanoparticles

Stroyuk, A. L.; Sobran, Ivan V.; Kuchmiy, S Ya

doi:10.1016/j.jphotochem.2007.05.010

Cited by 32 publications

(17 citation statements)

References 26 publications

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“…Zinc oxide nanorods (ZnONRs) have also been extensively used as photocatalysts for H 2 and O 2 production from water because of their wide band gap energy, high electron mobility and low charge recombination due to the longer electron lifetimes 9 . These properties make TiNT and ZnONRs more promising photocatalysts compared with other widely studied materials, such as platinum-group catalysts, which are expensive, as well as catalysts for the conversion of H 2 and O 2 back to water 2 and Fe 2 O 3 , which exhibit low electron conductivity and high electron-hole recombination rates [10][11][12][13] . Table 1 summarizes recent advances involving the application of TiNT and ZnONR for the development of photocatalysts and photoanodes for water splitting experiments.…”

Section: Introductionmentioning

confidence: 99%

Multihierarchical electrodes based on titanate nanotubes and zinc oxide nanorods for photoelectrochemical water splitting

et al. 2016

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a Studies involving water splitting to form hydrogen and oxygen have attracted attention because H2is considered the fuel of the future. Photoelectrocatalysts have been widely used for this application, and several metal oxides can be applied as catalysts. Among them, we highlight zinc oxide nanorods (ZnONRs) and titanate nanotubes (TiNTs); however, their individual nanostructures exhibit disadvantages. For example, ZnONR shows rapid recombination of the photogenerated charges, and TiNT gives rise to randomly orientated films; these disadvantages limit their application as photoanodes. In this study, for the first time, we present a new class of multihierarchical electrodes based on TiNT-decorated ZnONR films that exhibited superior results to the individual species. The TiNTs are homogenously dispersed over the surface of the rods without forming agglomerates, giving rise to a heterojunction that exhibits lower recombination rates. It was found that the results are better when the contents of TiNT in the electrode are higher; thus, glycine was successfully used as a bridge to link both of the structures, increasing the amount of TiNT decorating the rods. As a result, the photocurrent generated with these multihierarchical electrodes is higher than that obtained for pure ZnONR electrodes (0.9 mA and 0.45 mA, respectively), and the electrode potentials for O2 evolution is lower than that observed for pure TiNT electrodes (0 V and 0.8 V vs. ERHE, respectively). The IPCE values are also higher for the multihierarchical electrodes.

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Section: Introductionmentioning

confidence: 99%

Multihierarchical electrodes based on titanate nanotubes and zinc oxide nanorods for photoelectrochemical water splitting

et al. 2016

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“…Among them, Fe 2 O 3 -based materials are one of the most extensively explored [5][6][7]. However, some major issues have been raised in the fabrication of Fe 2 O 3 photoanodes, such as low electrical conductivity of the material and necessity for less than 5 nm particle synthesis to avoid electron-hole recombination related to the extremely short diffusion distance of holes, among others [8,9]. Along with transition metal oxide semiconductors, TiO 2 has also been extensively investigated as an electrode material because of its favorable characteristics, such as photoelectrochemical stability, non-toxicity, and low fabrication costs [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Effect of TiO2 supporting layer on Fe2O3 photoanode for efficient water splitting

Kim

Yun

et al. 2013

Progress in Organic Coatings

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“…Hematite nanostructured particles combine typical properties of bulk material, e.g., magnetic properties and enhanced reactivity of the nanoparticles due to the large surface to volume ratio. Thus, hematite nanoparticles are of increasing interest owing to their potential application in various fields like photovoltaic, gas sensors, photocatalysis, pigments, or adsorbents for waste water treatment . Matijevic and co‐workers developed a procedure to obtain monodisperse spindle‐type hematite nanoparticles with a narrow size distribution as well as tunable size and morphology.…”

Section: Introductionmentioning

confidence: 99%

Silica‐Coating of Hematite Nanoparticles Using Reactive Water‐Soluble Polyalkoxysiloxanes

Doermbach

Agrawal

Servos

et al. 2013

Part & Part Syst Charact

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In this article, we report on a new one‐step synthetic route to obtain multi‐functional silica‐coated hematite particles using a water‐based surfactant‐free technology. The synthesis and properties of uniform silica‐coated hematite particles with adjustable size, morphology, and silica shell thickness are discussed in detail. The developed method allows simultaneous formation of the silica shell around hematite core and incorporation of reactive groups on the surface of core–shell nanoparticles. Vinyl groups are introduced to the silica surface at once by pre‐functionalization of a water‐soluble hyperbranched polyalkoxysiloxanes with active double bonds. The reactivity of these surface‐immobilized vinyl groups is demonstrated by covalent attachment of rhodamine B using a thiol‐en click reaction.

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Photoinitiation of acrylamide polymerization by Fe2O3 nanoparticles

Cited by 32 publications

References 26 publications

Multihierarchical electrodes based on titanate nanotubes and zinc oxide nanorods for photoelectrochemical water splitting

Multihierarchical electrodes based on titanate nanotubes and zinc oxide nanorods for photoelectrochemical water splitting

Effect of TiO2 supporting layer on Fe2O3 photoanode for efficient water splitting

Silica‐Coating of Hematite Nanoparticles Using Reactive Water‐Soluble Polyalkoxysiloxanes

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