Transformation of refractory ceramic MgAl2O4 into blue light emitting nanomaterials by Sr2+/Cr3+ activation

Abid ur Rehman Chaudhary; Tanzeela Fazal; Yosef Jazaa; Ali Bahadur; Shahid Iqbal; Mazloom Shah; Sajid Mahmood; Ahmad K. Badawi; Asad Muhammad Khan; Warda Shahzad; Bushra Ismail; Nasser S. Awwad; Hala A. Ibrahium

doi:10.1016/j.mseb.2024.117273

Transformation of refractory ceramic MgAl₂O₄ into blue light emitting nanomaterials by Sr²⁺/Cr³⁺ activation

Abid ur Rehman Chaudhary, Tanzeela Fazal, Yosef Jazaa, Ali Bahadur, Shahid Iqbal, Mazloom Shah, Sajid Mahmood, Ahmad K. Badawi, Asad Muhammad Khan, Warda Shahzad, Bushra Ismail, Nasser S. Awwad, Hala A. Ibrahium

CBI Green Chemical/Energy Centre

Research output: Journal Publication › Article › peer-review

11 Citations (Scopus)

Abstract

The current research aims at manipulation of physical properties of spinel MgAl₂O₄ by substitution of Sr²⁺ cations at tetrahedral and Cr³⁺ at orthogonal-sites. Synthesized materials were studied by XRD, TGA, SEM, EDX and UV–visible, diffuse reflectance and photoluminescence spectroscopy. A series of Sr²⁺ and Cr³⁺ doped derivatives with the general formula Mg_1-xSr_xAl_2-yCr_yO₄ (where x, y = 0.2, 0.4, 0.6, 0.8 and 1.0) have been produced and investigated using the co precipitation technique. Although strain in the cubic crystal structure of magnesium aluminate spinel was seen upon doping due to Sr²⁺'s higher cationic radius, the structure remained reserved (spinel) for low dopant concentration (x, y = 0.2, 0.4, 0.6). The behavior of activator ions Cr³⁺ in these derivatives is supposed to be altered due to change in site occupancy. Due to presence of antisites defects activator ions; structural, optical, thermal, electrical properties of MgAl₂O₄ material were modified.

Original language	English
Article number	117273
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	303
DOIs	https://doi.org/10.1016/j.mseb.2024.117273
Publication status	Published - May 2024

Keywords

Antisite defects
Luminescence
MgAlO
Optical properties
X-ray diffraction

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.mseb.2024.117273

Cite this

ur Rehman Chaudhary, A., Fazal, T., Jazaa, Y., Bahadur, A., Iqbal, S., Shah, M., Mahmood, S., Badawi, A. K., Khan, A. M., Shahzad, W., Ismail, B., Awwad, N. S., & Ibrahium, H. A. (2024). Transformation of refractory ceramic MgAl₂O₄ into blue light emitting nanomaterials by Sr²⁺/Cr³⁺ activation. Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 303, Article 117273. https://doi.org/10.1016/j.mseb.2024.117273

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title = "Transformation of refractory ceramic MgAl2O4 into blue light emitting nanomaterials by Sr2+/Cr3+ activation",

abstract = "The current research aims at manipulation of physical properties of spinel MgAl2O4 by substitution of Sr2+ cations at tetrahedral and Cr3+ at orthogonal-sites. Synthesized materials were studied by XRD, TGA, SEM, EDX and UV–visible, diffuse reflectance and photoluminescence spectroscopy. A series of Sr2+ and Cr3+ doped derivatives with the general formula Mg1-xSrxAl2-yCryO4 (where x, y = 0.2, 0.4, 0.6, 0.8 and 1.0) have been produced and investigated using the co precipitation technique. Although strain in the cubic crystal structure of magnesium aluminate spinel was seen upon doping due to Sr2+'s higher cationic radius, the structure remained reserved (spinel) for low dopant concentration (x, y = 0.2, 0.4, 0.6). The behavior of activator ions Cr3+ in these derivatives is supposed to be altered due to change in site occupancy. Due to presence of antisites defects activator ions; structural, optical, thermal, electrical properties of MgAl2O4 material were modified.",

keywords = "Antisite defects, Luminescence, MgAlO, Optical properties, X-ray diffraction",

author = "{ur Rehman Chaudhary}, Abid and Tanzeela Fazal and Yosef Jazaa and Ali Bahadur and Shahid Iqbal and Mazloom Shah and Sajid Mahmood and Badawi, {Ahmad K.} and Khan, {Asad Muhammad} and Warda Shahzad and Bushra Ismail and Awwad, {Nasser S.} and Ibrahium, {Hala A.}",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2024",

month = may,

doi = "10.1016/j.mseb.2024.117273",

language = "English",

volume = "303",

journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",

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ur Rehman Chaudhary, A, Fazal, T, Jazaa, Y, Bahadur, A, Iqbal, S, Shah, M, Mahmood, S, Badawi, AK, Khan, AM, Shahzad, W, Ismail, B, Awwad, NS & Ibrahium, HA 2024, 'Transformation of refractory ceramic MgAl₂O₄ into blue light emitting nanomaterials by Sr²⁺/Cr³⁺ activation', Materials Science and Engineering B: Solid-State Materials for Advanced Technology, vol. 303, 117273. https://doi.org/10.1016/j.mseb.2024.117273

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T1 - Transformation of refractory ceramic MgAl2O4 into blue light emitting nanomaterials by Sr2+/Cr3+ activation

AU - ur Rehman Chaudhary, Abid

AU - Fazal, Tanzeela

AU - Jazaa, Yosef

AU - Bahadur, Ali

AU - Iqbal, Shahid

AU - Shah, Mazloom

AU - Mahmood, Sajid

AU - Badawi, Ahmad K.

AU - Khan, Asad Muhammad

AU - Shahzad, Warda

AU - Ismail, Bushra

AU - Awwad, Nasser S.

AU - Ibrahium, Hala A.

PY - 2024/5

Y1 - 2024/5

N2 - The current research aims at manipulation of physical properties of spinel MgAl2O4 by substitution of Sr2+ cations at tetrahedral and Cr3+ at orthogonal-sites. Synthesized materials were studied by XRD, TGA, SEM, EDX and UV–visible, diffuse reflectance and photoluminescence spectroscopy. A series of Sr2+ and Cr3+ doped derivatives with the general formula Mg1-xSrxAl2-yCryO4 (where x, y = 0.2, 0.4, 0.6, 0.8 and 1.0) have been produced and investigated using the co precipitation technique. Although strain in the cubic crystal structure of magnesium aluminate spinel was seen upon doping due to Sr2+'s higher cationic radius, the structure remained reserved (spinel) for low dopant concentration (x, y = 0.2, 0.4, 0.6). The behavior of activator ions Cr3+ in these derivatives is supposed to be altered due to change in site occupancy. Due to presence of antisites defects activator ions; structural, optical, thermal, electrical properties of MgAl2O4 material were modified.

AB - The current research aims at manipulation of physical properties of spinel MgAl2O4 by substitution of Sr2+ cations at tetrahedral and Cr3+ at orthogonal-sites. Synthesized materials were studied by XRD, TGA, SEM, EDX and UV–visible, diffuse reflectance and photoluminescence spectroscopy. A series of Sr2+ and Cr3+ doped derivatives with the general formula Mg1-xSrxAl2-yCryO4 (where x, y = 0.2, 0.4, 0.6, 0.8 and 1.0) have been produced and investigated using the co precipitation technique. Although strain in the cubic crystal structure of magnesium aluminate spinel was seen upon doping due to Sr2+'s higher cationic radius, the structure remained reserved (spinel) for low dopant concentration (x, y = 0.2, 0.4, 0.6). The behavior of activator ions Cr3+ in these derivatives is supposed to be altered due to change in site occupancy. Due to presence of antisites defects activator ions; structural, optical, thermal, electrical properties of MgAl2O4 material were modified.

KW - Antisite defects

KW - Luminescence

KW - MgAlO

KW - Optical properties

KW - X-ray diffraction

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DO - 10.1016/j.mseb.2024.117273

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