MXenes as emerging nanomaterials in water purification and environmental remediation

Environmental pollution has accelerated and intensified because of the acceleration of industrialization, therefore fabricating excellent materials to remove hazardous pollutants has become inevitable. MXenes as emerging transition metal nitrides, carbides or carbonitrides with high conductivity, hy...

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Vydané v:The Science of the total environment Ročník 811; s. 152280
Hlavní autori: Yu, Shujun, Tang, Hao, Zhang, Di, Wang, Shuqin, Qiu, Muqing, Song, Gang, Fu, Dong, Hu, Baowei, Wang, Xiangke
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Netherlands Elsevier B.V 10.03.2022
Predmet:
environment
Environmental remediation
Environmental Restoration and Remediation
Heavy metal ion
heavy metals
hydrophilicity
industrialization
Metals, Heavy
MXene
nanomaterials
Nanostructures
Organic pollutants
Radionuclides
remediation
sorption
toxicity
Waste Water
wastewater
water pollution
Water Purification
Environmental remediation
Radionuclides
Organic pollutants
MXene
Heavy metal ion
ISSN:0048-9697, 1879-1026, 1879-1026
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Popis
Shrnutí:Environmental pollution has accelerated and intensified because of the acceleration of industrialization, therefore fabricating excellent materials to remove hazardous pollutants has become inevitable. MXenes as emerging transition metal nitrides, carbides or carbonitrides with high conductivity, hydrophilicity, excellent structural stability, and versatile surface chemistry, become ideal candidates for water purification and environmental remediation. Particularly, MXenes reveal excellent sorption capability and efficient reduction performance for various contaminants of wastewater. In this regard, a comprehensive understanding of the removal behaviors of MXene-based nanomaterials is necessary to explain how they remove various pollutants in water. The eliminate process of MXene-based nanomaterials is collectively influenced by the physicochemical properties of the materials themselves and the chemical properties of different contaminants. Therefore, in this review paper, the synthesis strategies and properties of MXene-based nanomaterials are briefly introduced. Then, the chemical properties, removal behaviors and interaction mechanisms of heavy metal ions, radionuclides, and organic pollutants by MXene-based nanomaterials are highlighted. The overview also emphasizes associated toxicity, secondary contamination, the challenges, and prospects of the MXene-based nanomaterials in the applications of water treatment. This review can supply valuable ideas for fabricating versatile MXene nanomaterials in eliminating water pollution. [Display omitted] •The developmental timeline of MXenes for water treatment is summarized.•The synthesis strategies and characteristics of MXenes are introduced.•The removal behaviors of heavy metals, radionuclides, and organics are determined.•The removal mechanisms are electrostatic, coordination, and catalytic degradation.•MXenes with abundant terminal functional groups show excellent performance.
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ISSN:0048-9697
1879-1026
1879-1026
DOI:10.1016/j.scitotenv.2021.152280