Enhanced photoredox chemistry in quantized semiconductor colloids

Nedeljković, Jovan M.; Nenadović, M. T.; Mićić, O. I.; Nozik, Arthur J.

doi:10.1021/j100273a005

Cited by 179 publications

(74 citation statements)

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“…143 Similarly, CO 2 reduction to formic acid, from CO 2 -saturated aqueous solutions occurred in the presence of CdSe (50 Å), whereas no reaction is observed if larger particles are used. 143 Enhancements in photoredox chemistry result because quantum confinement on the semiconductor particles creates energy levels which can accommodate electrons from chemical species, which in turn have enhanced reduction potentials. 6,143 Polyurea (PUA) films containing CdS or ZnS nanocrystals in 10% propan-2-ol aqueous solutions generate hydrogen when photoirradiated.…”

Section: -6 2mentioning

confidence: 99%

Nanocrystalline Semiconductors: Synthesis, Properties, and Perspectives

2001

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The synthesis and study of so-called "nanoparticles", particles with diameters in the range of 1-20 nm, has become a major interdisciplinary area of research over the past 10 years. Semiconductor nanoparticles promise to play a major role in several new technologies. The intense interest in this area derives from their unique chemical and electronic properties, which gives rise to their potential use in the fields of nonlinear optics, luminescence, electronics, catalysis, solar energy conversion, and optoelectronics, as well as other areas. The small dimensions of these particles result in different physical properties from those observed in the corresponding macrocrystalline, "bulk", material. As particle sizes become smaller, the ratio of surface atoms to those in the interior increase, leading to the surface properties playing an important role in the properties of the material. Semiconductor nanoparticles also exhibit a change in their electronic properties relative to that of the bulk material; as the size of the solid becomes smaller, the band gap becomes larger. This allows chemists and material scientists the unique opportunity to change the electronic and chemical properties of a material simply by controlling its particle size. Research has already led to the fabrication of a number of devices. This review aims to highlight recent advances in the synthesis of compound semiconductor nanoparticle materials and their potential use in areas such as catalysis and electronic device fabrication.

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Section: -6 2mentioning

confidence: 99%

Nanocrystalline Semiconductors: Synthesis, Properties, and Perspectives

2001

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“…Consequently, the use of quantum-sized semiconductor particles may result in increased photoactivity for systems in which the rate-limiting step is interfacial charge transfer [81]. Hence, semiconductor nanoparticles of sufficient size can possess enhanced photoredox chemistry that might not otherwise exist in bulk materials [73,79,81,[83][84][85][86][87].…”

Section: Inorganic Photocatalystsmentioning

confidence: 99%

Nanomaterials for Water Treatment

Majewski

2003

Nanotechnologies for the Life Sciences

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The sections in this article are Introduction Iron Nanoparticles Inorganic Photocatalysts Functionalized Self‐assembled Monolayers Other Materials Magnetic Iron Exchange Resin ( MIEX )

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“…For purifying and complete mineralizing of organic pollutants in industrial waste water and air, the heterogeneous photocatalytic process is one of the upcoming and fast growing research area 8 . Research has been carried out using 3-d transition metal ions for the preparation of ternary oxides so that these ternary oxides becomes more applicable in visible range .It is possible to change redox potential with change in size of nanoparticle, which in turn effects photocatalytic activity [9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Use of Pure and N, S-Codoped Bimetallic Cerium Cadmium Oxide Nanoparticles as Photocatalyst for the Photodegradation of Fast Green

Sharma¹,

Ameta²

2017

Orient. J. Chem

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Photocatalytic degradation of fast green using pure and N-S codoped bimetal nanoparticles CeCdO 3 has been studied. The CeCdO 3 nanoparticles were synthesized by wet precipitation method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and FTIR. The rate of photocatalytic reaction was examined spectrophotometrically using pure and N, S-codoped catalyst. The effect of variation in parameters like pH, concentration of dye, amount of nanoparticle, dopant percentage and light intensity on the photocatalytic degradation of dye was studied. A tentative mechanism for the photocatalytic degradation has been suggested.

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Enhanced photoredox chemistry in quantized semiconductor colloids

Cited by 179 publications

References 0 publications

Nanocrystalline Semiconductors: Synthesis, Properties, and Perspectives

Nanocrystalline Semiconductors: Synthesis, Properties, and Perspectives

Nanomaterials for Water Treatment

Use of Pure and N, S-Codoped Bimetallic Cerium Cadmium Oxide Nanoparticles as Photocatalyst for the Photodegradation of Fast Green

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