Enhanced optical and antibacterial activity of hydrothermally synthesized cobalt-doped zinc oxide cylindrical microcrystals

Awais Khalid; Pervaiz Fazale Ahmad; Abdulrahman I. Alharthi; Saleh Muhammad; Mayeen Uddin Khandaker; Mohammad Rashed Iqbal Faruque; Abdulhameed Khan; Israf Ud Din; Mshari A. Alotaibi; Khalid Alzimami; Abdulrahman A. Alfuraih; David A. Bradley

doi:10.3390/ma14123223

Enhanced optical and antibacterial activity of hydrothermally synthesized cobalt-doped zinc oxide cylindrical microcrystals

Awais Khalid, Pervaiz Fazale Ahmad, Abdulrahman I. Alharthi, Saleh Muhammad, Mayeen Uddin Khandaker, Mohammad Rashed Iqbal Faruque, Abdulhameed Khan, Israf Ud Din, Mshari A. Alotaibi, Khalid Alzimami, Abdulrahman A. Alfuraih, David A. Bradley

Chemistry

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

Cobalt (Co) doped zinc oxide (ZnO) microcrystals (MCs) are prepared by using the hydrothermal method from the precursor’s mixture of zinc chloride (ZnCl₂ ), cobalt-II chloride hexahy-drate (CoCl₂·6H₂ O), and potassium hydroxide (KOH). The smooth round cylindrical morphologies of the synthesized microcrystals of Co-doped ZnO show an increase in absorption with the cobalt doping. The antibacterial activity of the as-obtained Co-doped ZnO-MCs was tested against the bacterial strains of gram-negative (Escherichia coli, Klebsiella pneumonia) and gram-positive bacteria (Staphylococcus aureus, Streptococcus pyogenes) via the agar well diffusion method. The zones of inhibition (ZOI) for Co-doped ZnO-MCs against E. coli and K. pneumoniae were found to be 17 and 19 mm, and 15 and 16 mm against S. Aureus and S. pyogenes, respectively. The prepared Co-doped ZnO-MCs were thus established as a probable antibacterial agent against gram-negative bacterial strains.

Original language	English
Article number	3223
Journal	Materials
Volume	14
Issue number	12
DOIs	https://doi.org/10.3390/ma14123223
State	Published - 2 Jun 2021

Keywords

Absorption
Antibacterial
Cobalt-doping
Microcrystals
Synthesis

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Khalid, A., Fazale Ahmad, P., Alharthi, A. I., Muhammad, S., Khandaker, M. U., Faruque, M. R. I., Khan, A., Din, I. U., Alotaibi, M. A., Alzimami, K., Alfuraih, A. A., & Bradley, D. A. (2021). Enhanced optical and antibacterial activity of hydrothermally synthesized cobalt-doped zinc oxide cylindrical microcrystals. Materials, 14(12), Article 3223. https://doi.org/10.3390/ma14123223

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title = "Enhanced optical and antibacterial activity of hydrothermally synthesized cobalt-doped zinc oxide cylindrical microcrystals",

abstract = "Cobalt (Co) doped zinc oxide (ZnO) microcrystals (MCs) are prepared by using the hydrothermal method from the precursor{\textquoteright}s mixture of zinc chloride (ZnCl2 ), cobalt-II chloride hexahy-drate (CoCl2·6H2 O), and potassium hydroxide (KOH). The smooth round cylindrical morphologies of the synthesized microcrystals of Co-doped ZnO show an increase in absorption with the cobalt doping. The antibacterial activity of the as-obtained Co-doped ZnO-MCs was tested against the bacterial strains of gram-negative (Escherichia coli, Klebsiella pneumonia) and gram-positive bacteria (Staphylococcus aureus, Streptococcus pyogenes) via the agar well diffusion method. The zones of inhibition (ZOI) for Co-doped ZnO-MCs against E. coli and K. pneumoniae were found to be 17 and 19 mm, and 15 and 16 mm against S. Aureus and S. pyogenes, respectively. The prepared Co-doped ZnO-MCs were thus established as a probable antibacterial agent against gram-negative bacterial strains.",

keywords = "Absorption, Antibacterial, Cobalt-doping, Microcrystals, Synthesis",

author = "Awais Khalid and \{Fazale Ahmad\}, Pervaiz and Alharthi, \{Abdulrahman I.\} and Saleh Muhammad and Khandaker, \{Mayeen Uddin\} and Faruque, \{Mohammad Rashed Iqbal\} and Abdulhameed Khan and Din, \{Israf Ud\} and Alotaibi, \{Mshari A.\} and Khalid Alzimami and Alfuraih, \{Abdulrahman A.\} and Bradley, \{David A.\}",

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T1 - Enhanced optical and antibacterial activity of hydrothermally synthesized cobalt-doped zinc oxide cylindrical microcrystals

AU - Khalid, Awais

AU - Fazale Ahmad, Pervaiz

AU - Alharthi, Abdulrahman I.

AU - Muhammad, Saleh

AU - Khandaker, Mayeen Uddin

AU - Faruque, Mohammad Rashed Iqbal

AU - Khan, Abdulhameed

AU - Din, Israf Ud

AU - Alotaibi, Mshari A.

AU - Alzimami, Khalid

AU - Alfuraih, Abdulrahman A.

AU - Bradley, David A.

PY - 2021/6/2

Y1 - 2021/6/2

N2 - Cobalt (Co) doped zinc oxide (ZnO) microcrystals (MCs) are prepared by using the hydrothermal method from the precursor’s mixture of zinc chloride (ZnCl2 ), cobalt-II chloride hexahy-drate (CoCl2·6H2 O), and potassium hydroxide (KOH). The smooth round cylindrical morphologies of the synthesized microcrystals of Co-doped ZnO show an increase in absorption with the cobalt doping. The antibacterial activity of the as-obtained Co-doped ZnO-MCs was tested against the bacterial strains of gram-negative (Escherichia coli, Klebsiella pneumonia) and gram-positive bacteria (Staphylococcus aureus, Streptococcus pyogenes) via the agar well diffusion method. The zones of inhibition (ZOI) for Co-doped ZnO-MCs against E. coli and K. pneumoniae were found to be 17 and 19 mm, and 15 and 16 mm against S. Aureus and S. pyogenes, respectively. The prepared Co-doped ZnO-MCs were thus established as a probable antibacterial agent against gram-negative bacterial strains.

AB - Cobalt (Co) doped zinc oxide (ZnO) microcrystals (MCs) are prepared by using the hydrothermal method from the precursor’s mixture of zinc chloride (ZnCl2 ), cobalt-II chloride hexahy-drate (CoCl2·6H2 O), and potassium hydroxide (KOH). The smooth round cylindrical morphologies of the synthesized microcrystals of Co-doped ZnO show an increase in absorption with the cobalt doping. The antibacterial activity of the as-obtained Co-doped ZnO-MCs was tested against the bacterial strains of gram-negative (Escherichia coli, Klebsiella pneumonia) and gram-positive bacteria (Staphylococcus aureus, Streptococcus pyogenes) via the agar well diffusion method. The zones of inhibition (ZOI) for Co-doped ZnO-MCs against E. coli and K. pneumoniae were found to be 17 and 19 mm, and 15 and 16 mm against S. Aureus and S. pyogenes, respectively. The prepared Co-doped ZnO-MCs were thus established as a probable antibacterial agent against gram-negative bacterial strains.

KW - Absorption

KW - Antibacterial

KW - Cobalt-doping

KW - Microcrystals

KW - Synthesis

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U2 - 10.3390/ma14123223

DO - 10.3390/ma14123223

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AN - SCOPUS:85108436107

SN - 1996-1944

VL - 14

JO - Materials

JF - Materials

IS - 12

M1 - 3223

ER -

Enhanced optical and antibacterial activity of hydrothermally synthesized cobalt-doped zinc oxide cylindrical microcrystals

Abstract

Keywords

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