CdIn2S4 Nanotubes and “Marigold” Nanostructures: A Visible-Light Photocatalyst

Kale, Bharat B.; Baeg, Jin‐Ook; Lee, Sang Mi; Chang, Hyunju; Moon, Sang‐Jin; Lee, Chul Wee

doi:10.1002/adfm.200500525

Cited by 346 publications

(238 citation statements)

References 39 publications

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“…NiO hollow microspheres showed greater catalytic activity than rods 6 A special class of 2D NSs self-assembled into a 3D architecture is another important research area in photocatalysis. [6][7][8][9][10][11] Layered titanates have been introduced for H 2 production as a result of their proton-exchange capability in the absence of co-catalysts. 223 …”

Section: Two-dimensional Nanostructuresmentioning

confidence: 99%

“…5 Among the renewable power sources, the photocatalytic splitting of water offers a promising method for the clean, low cost and environmentally friendly production of H 2 by solar energy. Nanostructured catalysts have additional advantages in photocatalysis [6][7][8][9][10][11] and the photocatalytic production of H 2 from water via solar energy is currently the best available method and is an attractive and competitive technology. As technology advances, the implementation and associated costs of this technique will be significantly reduced.…”

Section: Introductionmentioning

confidence: 99%

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Review of one-dimensional and two-dimensional nanostructured materials for hydrogen generation

Babu

Vempati

Uyar

et al. 2015

Phys. Chem. Chem. Phys.

158

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Hydrogen is an attractive alternative to fossil fuels in terms of environmental and other advantages. Of the various production methods for H 2 , photocatalysis requires further development so that it can be applied economically on an industrial scale. One-and two-dimensional nanostructures in both pristine and modified forms have shown great potential as catalysts in the generation of H 2 . We review here recent developments in these nanostructure catalysts and their efficiency in the generation of H 2 under UV/visible/simulated solar light. Despite much research effort, many photocatalysts do not yet meet the practical requirements for the generation of H 2 , such as visible light activity. H 2 production is dependent on a variety of parameters and factors. To meet future energy demands, several challenges in H 2 production still need to be solved. We address here the factors that influence the efficiency of H 2 production and suggest alternatives. The nanostructures are classified based on their morphology and their efficiency is considered with respect to the influencing parameters. We suggest effective ways of engineering catalyst combinations to overcome the current performance barriers.

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Section: Two-dimensional Nanostructuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Review of one-dimensional and two-dimensional nanostructured materials for hydrogen generation

Babu

Vempati

Uyar

et al. 2015

Phys. Chem. Chem. Phys.

158

View full text Add to dashboard Cite

show abstract

“…7b. The anodic peak current (I pa ) and cathodic peak current (I pc ) of GO are found to be 0.56 and -0.47 mA, which can be attributed to the electrical conductivity of graphene promoting the electron exchange between the electrochemical probe [Fe(CN) 6 ] 3-/4-and the electrode. MnTPPCl shows I pa and I pc of 0.86 and -0.84 mA, respectively.…”

Section: Investigations Of Optical and Photoelectrochemical Propertiesmentioning

confidence: 99%

“…Developing efficient photocatalysts with visible-light response is essential for realizing this task. Since Fujishima and Honda first reported photocatalytic water splitting to produce hydrogen through semiconductor TiO 2 electrode [4], more and more photocatalytic hydrogen generation systems have been developed [5][6][7]. The two-dimensional graphene, with large theoretical surface areas [8], high thermal conductivity [9,10], excellent mobility of charge carriers [11], and halfinteger quantum Hall effect at room temperature [12][13][14][15], has emerged as an attractive basic material for fabricating graphene-based photocatalysts for light-driven water splitting to produce hydrogen.…”

Section: Introductionmentioning

confidence: 99%

One-pot synthesis of manganese porphyrin covalently functionalized graphene oxide for enhanced photocatalytic hydrogen evolution

Wang

et al. 2017

J. Porphyrins Phthalocyanines

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ABSTRACT:In this paper, graphene oxide (GO) sheets covalently functionalized with (5,10,15,20-tetraphenyl) porphinato manganese(III) (MnTPP) has been successfully synthesized and tested as a photocatalyst for hydrogen evolution from water under UV-vis light irradiation. The obtained sample was systematically characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-vis, Fourier transform infrared (FTIR), and Raman spectroscopy. The results show that the MnTPP moiety has been successfully grafted on the graphene oxide surface to form MnTPP modified GO (GO-MnTPP). The fluorescence quenching and photocurrent enhancement of GOMnTPP confirm that the rapid electrons transfer from photoexcited the MnTPP moiety to the GO sheets. The platinized GO-MnTPP exhibits enhanced photocatalytic activity for water reduction to produce hydrogen. Moreover, with the assistance of polyvinyl pyrrolidone (PVP), the photocatalytic activity is further improved because of aggregation prevention of the GO-MnTPP nanocomposite. This study provides a facile method to build porphyrin-graphene-based photocatalysts for solar energy conversion.

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“…According to [3,4], the band gap of CdIn 2 S 4 at room temperature is 2.62 eV. CdIn 2 S 4 is a highly photosensitive semiconductor in the visible range of spectrum and may be used as active material for creation of solar cells and various optoelectronic devices [5][6][7][8][9]. Of interest is also the sensitivity of this material to X-rays.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Roentgen Sensitivity of Gold-Doped CdIn₂S₄ Thiospinel for X-Ray Detection Applications

Mustafaeva

Asadov

Guseinov

2015

Journal of Materials

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The single crystals CdIn 2 S 4 ⟨Au⟩ were grown from preliminarily synthesized polycrystals by the method of chemical transport reactions in a closed volume with iodine used as a carrier. The influence of doping CdIn 2 S 4 single crystals by gold (3 mol %) on their X-ray dosimetric parameters is studied. It is found that the X-ray sensitivity coefficients of CdIn 2 S 4 ⟨Au⟩ crystals increase 6-8 times compared with undoped CdIn 2 S 4 at effective radiation hardness = 25-50 keV and dose rate = 0.75-78.05 R/min. Moreover, the persistence of the crystal characteristics completely disappears and the supple voltage of a CdIn 2 S 4 ⟨Au⟩ roentgen detector decreases threefold. The dependence of the steady X-ray-induced current in CdIn 2 S 4 ⟨Au⟩ on the X-ray dose is described by linear law. The studied crystals have a rather high room-temperature X-ray sensitivity ( = 2 ⋅ 10 −9 -1.5 ⋅ 10 −8 (A⋅min)/(R⋅V)) and are attractive as materials for X-ray detectors.

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CdIn2S4 Nanotubes and “Marigold” Nanostructures: A Visible-Light Photocatalyst

Cited by 346 publications

References 39 publications

Review of one-dimensional and two-dimensional nanostructured materials for hydrogen generation

Review of one-dimensional and two-dimensional nanostructured materials for hydrogen generation

One-pot synthesis of manganese porphyrin covalently functionalized graphene oxide for enhanced photocatalytic hydrogen evolution

Enhancing Roentgen Sensitivity of Gold-Doped CdIn₂S₄ Thiospinel for X-Ray Detection Applications

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CdIn2S4 Nanotubes and “Marigold” Nanostructures: A Visible-Light Photocatalyst

Cited by 346 publications

References 39 publications

Review of one-dimensional and two-dimensional nanostructured materials for hydrogen generation

Review of one-dimensional and two-dimensional nanostructured materials for hydrogen generation

One-pot synthesis of manganese porphyrin covalently functionalized graphene oxide for enhanced photocatalytic hydrogen evolution

Enhancing Roentgen Sensitivity of Gold-Doped CdIn2S4 Thiospinel for X-Ray Detection Applications

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Enhancing Roentgen Sensitivity of Gold-Doped CdIn₂S₄ Thiospinel for X-Ray Detection Applications