A Review on MXene Synthesis, Stability, and Photocatalytic Applications

ACS Nano, Journal Year: 2022, Volume and Issue: 16(9), P. 13370 - 13429

Published: Sept. 12, 2022

Photocatalytic water splitting, CO2 reduction, and pollutant degradation have emerged as promising strategies to remedy the existing environmental energy crises. However, grafting of expensive less abundant noble-metal cocatalysts on photocatalyst materials is a mandatory practice achieve enhanced photocatalytic performance owing ability extract electrons efficiently from enable rapid/enhanced catalytic reaction. Hence, developing highly efficient, inexpensive, noble-metal-free composed earth-abundant elements considered noteworthy step toward considering photocatalysis more economical strategy. Recently, MXenes (two-dimensional (2D) transition-metal carbides, nitrides, carbonitrides) shown huge potential alternatives for cocatalysts. several excellent properties, including atomically thin 2D morphology, metallic electrical conductivity, hydrophilic surface, high specific surface area. In addition, they exhibit Gibbs free intermediate H atom adsorption close zero than that commercial Pt-based cocatalyst, Fermi level position above H2 generation potential, an capture activate molecules. Therefore, there growing interest in MXene-based various events. this review, we focus recent advances synthesis with 0D morphologies, stability MXenes, photocatalysts evolution, degradation. The challenges possible future directions enhance are also discussed.

Language: Английский

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Integrated adsorption and photodegradation of tetracycline by bismuth oxycarbonate/biochar nanocomposites

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 457, P. 141228 - 141228

Published: Dec. 29, 2022

Language: Английский

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Interface Engineering in 2D/2D Heterogeneous Photocatalysts

Small, Journal Year: 2022, Volume and Issue: 19(5)

Published: Dec. 7, 2022

Assembling different 2D nanomaterials into heterostructures with strong interfacial interactions presents a promising approach for novel artificial photocatalytic materials. Chemically implementing the nanomaterials' construction/stacking modes to regulate interfaces can extend their functionalities and achieve good performance. Herein, based on fundamental principles photochemical processes, multiple construction (e.g., face-to-face, edge-to-face, interface-to-face, edge-to-edge) are overviewed systematically emphasis relationships between characteristics point, linear, planar), synthetic strategies in situ growth, ex assembly), enhanced applications precise regulation. Meanwhile, recent efforts enhancing performances of 2D/2D summarized from critical factors visible light absorption, accelerating charge transfer/separation, introducing active sites. Notably, crucial roles surface defects, cocatalysts, modification performance optimization also discussed synergistic effect engineering heterogeneous interfaces. Finally, perspectives challenges proposed emphasize future opportunities expanding photocatalysis.

Language: Английский

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MXenes and MXene-based materials for removal of pharmaceutical compounds from wastewater: Critical review

Environmental Research, Journal Year: 2023, Volume and Issue: 228, P. 115919 - 115919

Published: April 16, 2023

Language: Английский

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Engineering of Bi2O2CO3/Ti3C2Tx heterojunctions co-embedded with surface and interface oxygen vacancies for boosted photocatalytic degradation of levofloxacin

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139327 - 139327

Published: Sept. 21, 2022

Language: Английский

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Direct Z-scheme In2O3/AgI heterojunction with oxygen vacancies for efficient molecular oxygen activation and enhanced photocatalytic degradation of tetracycline

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 466, P. 143319 - 143319

Published: May 3, 2023

Language: Английский

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Construction of BiOBr/Ti3C2/exfoliated montmorillonite Schottky junction: New insights into exfoliated montmorillonite for inducing MXene oxygen functionalization and enhancing photocatalytic activity

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 438, P. 135609 - 135609

Published: March 3, 2022

Language: Английский

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Interfacial engineering of Ti3C2 MXene/CdIn2S4 Schottky heterojunctions for boosting visible-light H2 evolution and Cr(VI) reduction

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 640, P. 851 - 863

Published: Feb. 28, 2023

Language: Английский

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Efficient Photocatalytic Degradation of Tetracycline under Visible Light by an All-Solid-State Z-Scheme Ag₃PO₄/MIL-101(Cr) Heterostructure with Metallic Ag as a Charge Transmission Bridge

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(18), P. 22085 - 22100

Published: April 27, 2023

The Z-type Ag/Ag3PO4/MIL-101(Cr) heterojunction photocatalyst (referred to as AAM-x) was successfully prepared by a simple in situ precipitation method. photocatalytic activity of the AAM-x samples evaluated using common tetracycline (TC) antibiotic. All materials are more effective removing TC than Ag3PO4 and MIL-101(Cr). Among them, AAM-3 exhibited efficient photodegradation efficiency excellent structural stability, removal rate (20 mg L–1) (0.5 g under 60 min visible light 97.9%. effects dosage, pH, inorganic anions were also systematically investigated. According X-ray photoelectron spectroscopy analysis, metallic silver particles appeared on surface Ag3PO4/MIL-101(Cr) mixture during catalyst synthesis. results photoluminescence spectra, photocurrent response, EIS, fluorescence lifetime showed that has high photogenic charge separation efficiency. An all-solid-state mechanism including Ag3PO4, Ag, MIL-101(Cr) is proposed rationalize performance photostability composites explain effect Ag acting transfer bridge. intermediates identified liquid chromatography–mass spectrometry possible routes degradation discussed. This work provides viable idea for antibiotics an Ag3PO4/MOF-based heterogeneous structured photocatalyst.

Language: Английский

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MXene-based nanocomposites: emerging candidates for the removal of antibiotics, dyes, and heavy metal ions

Materials Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 7(22), P. 5519 - 5544

Published: Jan. 1, 2023

Fabrication of MXene-based nanocomposites. Photocatalytic properties membranes for the separation toxic pollutants, such as antibiotic drugs, dyes, etc . nanocomposites absorbents heavy metal removal.

Language: Английский

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