Twinning

doi:10.1002/9781119961468.ch11

Cited by 7 publications

(2 citation statements)

References 28 publications

(13 reference statements)

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“…Nevertheless, Ir doped SrTiO 3 specimen did not show the characteristic peaks of Ir due to the low quantity; similar results would be found in the previous report 21 . As compared to SrTiO 3 , Ir-SrTiO 3 photocatalyst exhibited a slight shift towards higher 2θ scattering angles due to the replacement of Ti 4+ (0.605 Å) for Ir 3+ (0.625) 22,23 .…”

Section: Resultsmentioning

confidence: 95%

SrTiO3 nanocubes doped with ir as photocatalytic system for enhancing H2 generation from water splitting

Trang¹,

Doanh²,

Sinh³

et al. 2020

Sci. Tech. Dev. J.

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Designing an effective photocatalyst for hydrogen (H2) performance under visible irradiation with a decrease the band gap energy of semiconductor has been considered as an essential aspect in boosting the performance of photocatalytic reactions. Herein, we focus on evaluating the role of doping with Ir into SrTiO3 structure fabricated by hydrothermal method for H2 generation. The crystalline characteristics the Ir-SrTiO3 photocatalyst were carried out via XRD and FE-SEM. The chemical composition and the optical properties of the Ir-SrTiO3 were classified by EDX and UV-Vis spectra, respectively. The results showcased that the dramatically improved absorbing performances of Ir/SrTiO3 specimen could be governed by the presence of Ir impurity states in the forbidden energy gap causing a decrease in energy gap of SrTiO3. This work also revealed that Ir doped into SrTiO3 exhibited excellent photocatalytic H2 evolution compared with pristine SrTiO3 (~454 and ~325 mmol.h-1.g-1 H2 production under UV and visible light irradiation, respectively). A rational photocatalytic mechanism is projected to be able provide significant awareness for further research.

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Section: Resultsmentioning

confidence: 95%

SrTiO3 nanocubes doped with ir as photocatalytic system for enhancing H2 generation from water splitting

Trang¹,

Doanh²,

Sinh³

et al. 2020

Sci. Tech. Dev. J.

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“…Twinning can occur in many types of crystals, including metals, minerals, and ceramics, and can be an important factor in understanding the properties and behavior of these materials [15][16][17].However, in general, sodium (Na) and copper (Cu) do not have the same atomic arrangement, as they belong to different crystal systems and have different crystal structures. Sodium has a simple cubic structure with one atom per unit cell, while copper has a face-centered cubic structure with one atom per lattice point.…”

Section: Crystallographic Twinsmentioning

confidence: 99%

The perception of the Brazil plane (2 0 0) in M-type Cu1−xNaxO1 Nanocrystallite due to Na atom/ions doping derives Pyroelectricity application

Samaje,

Kambhala,

et al. 2023

Preprint

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The hydrothermal approach was carried out to make sodium doped (atom wt. % 0.05, 0.15, 0.25) copper II oxide Nanocrystallite. The one-dimensional twinning/Brazil (2 0 0) plane in the direction of {1 1 0} has been identified in CuO Nanocrystallite space group (C2/c). The visibility of sharp intense peak appears at 19.09o (2-Theta) in powder X-ray diffraction pattern. The Monoclinic crystal structure of CuO provides the same Wyckoff site to Na atom/ions and hence the Na atom achieved the solubility limits up to 0.05 to 0.15 atomic weight percentage. The mean crystalline size has been determined using Scherer’s formula and the size range is in between 22 to 25 nm. From EDX analysis the atomic percentage of Cu decreases as doping (Na) concentration rises has been confirm, and it reveals that the Cu atoms have partially provide its Wyckoff site to Na atom / ions counterparts as content up to the certain limit. According to the optical observations, increasing the Na doping level causes an expansion of the energy band gap. SEM images confirm the rice grain nanostructure of the material.

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Potential of cassava peels as a sustainable coagulant aid for institutional wastewater treatment: Characterisation, optimisation and techno-economic analysis

Kumar

Al-Gheethi

Asharuddin

et al. 2021

Chemical Engineering Journal

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Twinning

Cited by 7 publications

References 28 publications

SrTiO3 nanocubes doped with ir as photocatalytic system for enhancing H2 generation from water splitting

SrTiO3 nanocubes doped with ir as photocatalytic system for enhancing H2 generation from water splitting

The perception of the Brazil plane (2 0 0) in M-type Cu1−xNaxO1 Nanocrystallite due to Na atom/ions doping derives Pyroelectricity application

Potential of cassava peels as a sustainable coagulant aid for institutional wastewater treatment: Characterisation, optimisation and techno-economic analysis

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