Strongly ($$\mathscr {X},\mathscr {Y},\mathscr {Z}$$)-Gorenstein Modules and Applications

Kong, Liuzhen

doi:10.1007/s41980-019-00272-w

Cited by 4 publications

(5 citation statements)

References 25 publications

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“…However, it requires high‐cost vacuum equipment, and thus, many researchers are focusing on solution processing as an alternative fabrication method. ZnO film fabricated by solution processing has various kinds of surface morphologies, such as plates, nanobelts, nanorings, and nanocombs . In addition, this variation in surface morphologies affects to specific surface area, and it is one of the factors for decide the photocatalytic performance …”

Section: Introductionmentioning

confidence: 70%

Influence of Surface Morphology and Conductivity on Photocatalytic Performance of Solution‐Processed Zinc Oxide Film

Hong

Matsushita

Shirai

et al. 2017

Chemistry An Asian Journal

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Solution-processed ZnO films with various structures have been fabricated and the influence of surface morphology and conductivity on photocatalytic performance, including improvement of conductivity, hydrogen production, and photodegradation of rhodamine B, has been investigated. Surface morphology was controlled by solution conditions, and as-fabricated films had rod, dense, and flower-like structures. Improved conductivity was revealed by the photocatalytic activity of ZnO, the influence of surface morphology on the photodegradation of rhodamine B, and the relationship with conductivity and hydrogen production.

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Section: Introductionmentioning

confidence: 70%

Influence of Surface Morphology and Conductivity on Photocatalytic Performance of Solution‐Processed Zinc Oxide Film

Hong

Matsushita

Shirai

et al. 2017

Chemistry An Asian Journal

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“…Due to this higher electron concentration, it can influence the structural phase. Since, the existing basal plane electrons endorses a field induced force which might help to align the dipole moments via spontaneous polarization induced electrostatic energy 45 not only for the minimization of these electrostatic energy generated via polar planes but also to balance the difference in surface tension of the formednanosheets 46 . These nanosheets are mingled together throughout the substrate mainly due to the aforementioned long range electrostatic interaction among the polar charges of the (0001) planes and form a nanosheet network 20 .…”

Section: Iii3 Microscopy Analysismentioning

confidence: 99%

“…Therefore, in band gap widening phenomena reduction of average dielectric constant and breaking of polarisable bond on the surface take place due to increased roughness 59 . To compensate the uncompensated surface charge the net dipole moment would be liable to diverge and electrostatic potential increases 46 . The increased surface roughness endorses the divergence of net dipole moment and as a consequence polarisable bond breaks which may help in reducing the average dielectric constant and results in a band gap opening.…”

Section: Iii4optical Propertiesmentioning

confidence: 99%

High temperature-mediated rocksalt to wurtzite phase transformation in cadmium oxide nanosheets and its theoretical evidence

et al. 2019

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In the paper, high temperature induced phase transformation (PT) in chemically grown CdO thin films has been demonstrated whereas their corresponding electronic origin is further investigated by density functional theory. In particular, cubic rocksalt to hexagonal wurtzite PT in 900 ℃ annealed CdO thin films is confirmed by X-ray diffraction (XRD), consistent with High Resolution Transmission Electron Microscopy (TEM). Such high temperature treatment also leads to significant enhancement in optical band gap from 2.2 to 3.2 eV as manifested by UV-Visible spectroscopy. Moreover, atomic force microscopy and scanning electron microscopy clearly evidence the structural evolution via formation of nano-sheet network in wurtzite phased CdO films. Furthermore, X-ray Absorption spectra at oxygen kedge revealed a notable shift in inflection point of absorption edge while X-ray Photoelectron spectroscopy of Cd 3d and O 1s suggested the gradual reduction in CdO2 phase with increasing annealing temperature. In addition, different complementary techniques including Rutherford Backscattering, Raman Spectroscopy have also been exploited to understand the aforementioned PT and their structural correlation. Finally, molecular dynamics simulation along with density functional theory calculations suggest that symmetry modification at Brillouin zone boundary provides a succinct signature for such PT in CdO thin film.

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“…The analysis shows that calcination treatment results in more separated product with well‐defined morphology as compared to the product without calcination treatment. Different morphologies of ZnO nanomaterial have been reported as nanoflakes, nanorods,, nanospheres, nanoneedles, nanowires, nanopowder, nanofilms,, nanobelts,, nanodiscs, nanoflowers and nanotubes etc. but tubes and flowers have not been reported yet through any preparation technique.…”

Section: Resultsmentioning

confidence: 99%

Layer by Layer Assembly of Zinc Oxide Nanotubes and Nanoflowers as Catalyst for Separate and Simultaneous Catalytic Degradation of Dyes and Fuel Additive

et al. 2019

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Zinc oxide nanotubes and nanoflowers are synthesized using urea as template through hydrothermal technique. XRD confirmed that product is consists of zinc and oxygen atoms forming a hexagonal crystal system with ZnO chemical formula. SEM showed that tubes and flower like particles are formed. ATR‐IR confirmed the presence of Zn−O bond as a functional group. UV‐VIS spectroscopic analysis exhibits that product has a band gap energy of 3.49 eV. Synthesized product due to its outstanding properties such as wide band gap semiconductor and large surface area to volume ratio is used as a catalyst for individual and simultaneous catalytic degradation of methylene blue (MB) and Congo red (CR) dyes. The apparent rate constant (kapp) value of individual and simultaneous catalytic degradation of CR dye is decreased with increase in catalyst dosage while kapp value of individual and simultaneous catalytic degradation of MB dye is increased with increase in catalyst dosage. The synthesized product is found more active towards CR dye as compared to MB dye. Small size and high surface area to volume ratio of product also make it a desirable additive for enhancing the efficiency of diesel fuel. Results obtained from fuel additive activity show that as the concentration of nanoadditive is increased from 20, 40, 60, 80 and 100 ppm the calorific value is increased which indicates the enhanced efficiency of fuel due to additive.

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Strongly ($$\mathscr {X},\mathscr {Y},\mathscr {Z}$$)-Gorenstein Modules and Applications

Cited by 4 publications

References 25 publications

Influence of Surface Morphology and Conductivity on Photocatalytic Performance of Solution‐Processed Zinc Oxide Film

Influence of Surface Morphology and Conductivity on Photocatalytic Performance of Solution‐Processed Zinc Oxide Film

High temperature-mediated rocksalt to wurtzite phase transformation in cadmium oxide nanosheets and its theoretical evidence

Layer by Layer Assembly of Zinc Oxide Nanotubes and Nanoflowers as Catalyst for Separate and Simultaneous Catalytic Degradation of Dyes and Fuel Additive

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