A Review on MXene Synthesis, Stability, and Photocatalytic Applications

ACS Nano, Год журнала: 2022, Номер 16(9), С. 13370 - 13429

Опубликована: Сен. 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.

Язык: Английский

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

Chemical Engineering Journal, Год журнала: 2022, Номер 457, С. 141228 - 141228

Опубликована: Дек. 29, 2022

Язык: Английский

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Interface Engineering in 2D/2D Heterogeneous Photocatalysts

Small, Год журнала: 2022, Номер 19(5)

Опубликована: Дек. 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.

Язык: Английский

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

Environmental Research, Год журнала: 2023, Номер 228, С. 115919 - 115919

Опубликована: Апрель 16, 2023

Язык: 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, Год журнала: 2023, Номер 466, С. 143319 - 143319

Опубликована: Май 3, 2023

Язык: 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, Год журнала: 2022, Номер 452, С. 139327 - 139327

Опубликована: Сен. 21, 2022

Язык: 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, Год журнала: 2022, Номер 438, С. 135609 - 135609

Опубликована: Март 3, 2022

Язык: Английский

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Construction of Sn-Bi-MOF/Ti3C2 Schottky junction for photocatalysis of tetracycline: Performance and degradation mechanism

Applied Surface Science, Год журнала: 2022, Номер 609, С. 155191 - 155191

Опубликована: Окт. 13, 2022

Язык: 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, Год журнала: 2023, Номер 640, С. 851 - 863

Опубликована: Фев. 28, 2023

Язык: 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, Год журнала: 2023, Номер 15(18), С. 22085 - 22100

Опубликована: Апрель 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.

Язык: Английский

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