Graphene Oxide-Doped MgO Nanostructures for Highly Efficient Dye Degradation and Bactericidal Action
Abstract Various concentrations (0.01, 0.03 and 0.05 wt ratios) of graphene oxide (GO) nanosheets were doped into magnesium oxide (MgO) nanostructures using chemical precipitation technique. The objective was to study the effect of GO dopant concentrations on the catalytic and antibacterial behavior...
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doaj-1413b7c5751549cdadc083785d2ba2822021-04-11T11:14:12ZengSpringerOpenNanoscale Research Letters1556-276X2021-04-0116111110.1186/s11671-021-03516-zGraphene Oxide-Doped MgO Nanostructures for Highly Efficient Dye Degradation and Bactericidal ActionM. Ikram0T. Inayat1A. Haider2A. Ul-Hamid3J. Haider4W. Nabgan5A. Saeed6A. Shahbaz7S. Hayat8K. Ul-Ain9A. R. Butt10Solar Cell Application Research Lab, Department of Physics, Government College University LahorePhysics Department, Lahore Garrison UniversityDepartment of Clinical Medicine and Surgery, University of Veterinary and Animal SciencesCore Research Facilities, King Fahd University of Petroleum & MineralsTianjin Institute of Industrial Biotechnology, Chinese Academy of SciencesSchool of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi MalaysiaDepartment of Chemistry, Quaid-i-Azam UniversityDepartment of Physics, Government College University LahoreDepartment of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International UniversityDepartment of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International UniversityPhysics Department, Lahore Garrison UniversityAbstract Various concentrations (0.01, 0.03 and 0.05 wt ratios) of graphene oxide (GO) nanosheets were doped into magnesium oxide (MgO) nanostructures using chemical precipitation technique. The objective was to study the effect of GO dopant concentrations on the catalytic and antibacterial behavior of fixed amount of MgO. XRD technique revealed cubic phase of MgO, while its crystalline nature was confirmed through SAED profiles. Functional groups presence and Mg-O (443 cm−1) in fingerprint region was evident with FTIR spectroscopy. Optical properties were recorded via UV–visible spectroscopy with redshift pointing to a decrease in band gap energy from 5.0 to 4.8 eV upon doping. Electron–hole recombination behavior was examined through photoluminescence (PL) spectroscopy. Raman spectra exhibited D band (1338 cm−1) and G band (1598 cm−1) evident to GO doping. Formation of nanostructure with cubic and hexagon morphology was confirmed with TEM, whereas interlayer average d-spacing of 0.23 nm was assessed using HR-TEM. Dopants existence and evaluation of elemental constitution Mg, O were corroborated using EDS technique. Catalytic activity against methyl blue ciprofloxacin (MBCF) was significantly reduced (45%) for higher GO dopant concentration (0.05), whereas bactericidal activity of MgO against E. coli was improved significantly (4.85 mm inhibition zone) upon doping with higher concentration (0.05) of GO, owing to the formation of nanorods.https://doi.org/10.1186/s11671-021-03516-zGraphene oxideMgONanorodsDye degradationAntimicrobial activity |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. Ikram T. Inayat A. Haider A. Ul-Hamid J. Haider W. Nabgan A. Saeed A. Shahbaz S. Hayat K. Ul-Ain A. R. Butt |
spellingShingle |
M. Ikram T. Inayat A. Haider A. Ul-Hamid J. Haider W. Nabgan A. Saeed A. Shahbaz S. Hayat K. Ul-Ain A. R. Butt Graphene Oxide-Doped MgO Nanostructures for Highly Efficient Dye Degradation and Bactericidal Action Nanoscale Research Letters Graphene oxide MgO Nanorods Dye degradation Antimicrobial activity |
author_facet |
M. Ikram T. Inayat A. Haider A. Ul-Hamid J. Haider W. Nabgan A. Saeed A. Shahbaz S. Hayat K. Ul-Ain A. R. Butt |
author_sort |
M. Ikram |
title |
Graphene Oxide-Doped MgO Nanostructures for Highly Efficient Dye Degradation and Bactericidal Action |
title_short |
Graphene Oxide-Doped MgO Nanostructures for Highly Efficient Dye Degradation and Bactericidal Action |
title_full |
Graphene Oxide-Doped MgO Nanostructures for Highly Efficient Dye Degradation and Bactericidal Action |
title_fullStr |
Graphene Oxide-Doped MgO Nanostructures for Highly Efficient Dye Degradation and Bactericidal Action |
title_full_unstemmed |
Graphene Oxide-Doped MgO Nanostructures for Highly Efficient Dye Degradation and Bactericidal Action |
title_sort |
graphene oxide-doped mgo nanostructures for highly efficient dye degradation and bactericidal action |
publisher |
SpringerOpen |
series |
Nanoscale Research Letters |
issn |
1556-276X |
publishDate |
2021-04-01 |
description |
Abstract Various concentrations (0.01, 0.03 and 0.05 wt ratios) of graphene oxide (GO) nanosheets were doped into magnesium oxide (MgO) nanostructures using chemical precipitation technique. The objective was to study the effect of GO dopant concentrations on the catalytic and antibacterial behavior of fixed amount of MgO. XRD technique revealed cubic phase of MgO, while its crystalline nature was confirmed through SAED profiles. Functional groups presence and Mg-O (443 cm−1) in fingerprint region was evident with FTIR spectroscopy. Optical properties were recorded via UV–visible spectroscopy with redshift pointing to a decrease in band gap energy from 5.0 to 4.8 eV upon doping. Electron–hole recombination behavior was examined through photoluminescence (PL) spectroscopy. Raman spectra exhibited D band (1338 cm−1) and G band (1598 cm−1) evident to GO doping. Formation of nanostructure with cubic and hexagon morphology was confirmed with TEM, whereas interlayer average d-spacing of 0.23 nm was assessed using HR-TEM. Dopants existence and evaluation of elemental constitution Mg, O were corroborated using EDS technique. Catalytic activity against methyl blue ciprofloxacin (MBCF) was significantly reduced (45%) for higher GO dopant concentration (0.05), whereas bactericidal activity of MgO against E. coli was improved significantly (4.85 mm inhibition zone) upon doping with higher concentration (0.05) of GO, owing to the formation of nanorods. |
topic |
Graphene oxide MgO Nanorods Dye degradation Antimicrobial activity |
url |
https://doi.org/10.1186/s11671-021-03516-z |
work_keys_str_mv |
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