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Synthesis and applications of nano-MgO and composites for medicine, energy, and environmental remediation: a review

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Abstract

Metal oxide nanoparticles display unique properties such large bandgap, low electric constant, low refractive index, high chemical stability, and vacant oxygen presence. Magnesium oxide (MgO) nanoparticles are of particular interest because they are abundant, nontoxic, cheap, odorless, and stable. Here we review the synthesis and applications of MgO nanoparticles and their composites in various fields. MgO has antibacterial properties for medicine due to the production of superoxide anion O2. The reactivity and stability of MgO are of interest for medicine, water purification, catalysis, and gas sensors. For membrane applications, new strategies are needed to control the pore diameter of the membranes with MgO as filler. As food packaging materials, there is a need for methods to assess the release of nanoparticles from the packing materials into food. For sensor applications, challenges include sensitivity, reproducibility, surface fouling, and poisoning. For supercapacitors and semiconductors, controlling the pore structure should improve electron transport.

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Abbreviations

AC:

Activated carbon

AOP:

Advanced oxidation process

AP:

Ammonium perchlorate

ATN:

Atenolol

CB:

Conduction band

COD:

Chemical oxygen demand

COP:

Catalytic ozonation process

CTAB:

Cetrimonium bromide

DPPH:

2,2-Diphenyl-1-picrylhydrazyl

EDTA:

Ethylenediaminetetraacetic acid

EE:

2-Ethoxyethanol

FDA:

Food and Drug Administration

FE:

Field Emission

FGs:

Graphene flakes

GAC:

Granular activated carbon

GBMF:

Gelatin-bacterial cellulose–MgO nanocomposite film

GCE:

Glassy carbon electrode

GlY:

Glycerin

GO:

Graphene oxide

GST:

Glutathione S-transferase

Hap:

Hydroxyapatite

LD50:

Dermal median lethal dose

LPG:

Liquefied petroleum gas

ME:

2-Methoxyethanol

MNP:

Magnetic nanoparticles

MOF:

Metal oxide frameworks

MWCNT:

Multiwalled carbon nanotube

NIF:

Nifedipine

ODLA:

Oligo-d-lactide-grafted magnesium hydroxide

OECD:

Organisation for Economic Co-operation and Development

PANI:

Polyaniline

PCL:

Polycaprolactone

PDT:

Photodynamic therapy

PEG:

Polyethylene glycol

PEGBEM:

Poly(ethylene glycol) biphenyl ether methacrylate

PHMEP:

Poly(2-hydroxypropyl 2-(methacryloyloxy)ethyl phthalate)

PLLA:

Poly (l-lactide)

PLA:

Poly(lactide)

PMMA:

Poly (methyl methacrylate)

POEM:

Poly(oxyethylene methacrylate)

PSF:

Polysulfone

PVA:

Polyvinyl alcohol

PVC:

Polyvinyl chloride

PVDF:

Polyvinylidene fluoride

P-MgO:

Nanoparticle-assembled MgO nanorods

PS-MgO:

Porous nanosheet-assembled MgO microrods

ROS:

Reactive oxygen species

RSM:

Response surface methodology

SAR:

Specific absorption rate

SDS:

Sodium dodecyl sulfate

SEM:

Scanning electron microscope

SPE:

Screen-printed electrode

S-Mg(OH)2 :

Nanosheet-assembled Mg(OH)2 microrods

TOC:

Total organic carbon

UV:

Ultraviolet

US:

Ultrasonication

VB:

Valence band

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Correspondence to Mahendra Chinthala.

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Chinthala, M., Balakrishnan, A., Venkataraman, P. et al. Synthesis and applications of nano-MgO and composites for medicine, energy, and environmental remediation: a review. Environ Chem Lett 19, 4415–4454 (2021). https://doi.org/10.1007/s10311-021-01299-4

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  • DOI: https://doi.org/10.1007/s10311-021-01299-4

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