Built-in electric field induced CeO2/Ti3C2-MXene Schottky-junction for coupled photocatalytic tetracycline degradation and CO2 reduction

Shen, Jiayu; Shen, Jun; Zhang, Wenjing; Yu, Xiaohui; Tang, Hua; Zhang, Mingyi; Zulfiqar,; Liu, Qinqin

doi:10.1016/j.ceramint.2019.08.123

Cited by 178 publications

(59 citation statements)

References 61 publications

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“…Because of the different Fermi energy levels of MXenes and the host catalysts, the photo-aroused electrons will migrate from the conduction band (CB) of the main catalyst to the MXenes with strong conductivity [72]. With the accumulation of negative photo-generated electrons on the MXenes, the CB and valence band (VB) of the main catalyst will bend upward, forming a Schottky barrier.…”

Section: Photocatalytic Mechanism For Mxenes As Co-catalystsmentioning

confidence: 99%

MXenes as noble-metal-alternative co-catalysts in photocatalysis

Zhang

et al. 2021

Chinese Journal of Catalysis

267

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Section: Photocatalytic Mechanism For Mxenes As Co-catalystsmentioning

confidence: 99%

MXenes as noble-metal-alternative co-catalysts in photocatalysis

Zhang

et al. 2021

Chinese Journal of Catalysis

267

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“…[28] They have numerous applications in a variety of fields ranging from energy materials, lubricating additives, nanocomposites, etc. owing to excellent properties; [5,8,13,[28][29][30][31][32][33] MXene-based composites have already been used in many fields such as electromagnetic shielding, [32,34,35] electronics, [36] electrical and thermal conductors, [33,37,38] environmental remediations, [39] supercapacitors, [40,41] fire safety materials, [42] photocatalysts, [43,44] sensors, [10,45] batteries, [46] self-healing composites, [40,47] water purifications, [44,48] antibacterial materials, [49] actuators, [50] and other advanced materials and structures. [8,29,51] For instance, Kang et al [36] developed Ti 3 C 2 MXene reinforced epoxy nanocomposite to enhance thermal and electrical performance wherein they found that the addition of 1.0 wt% few-layer Ti 3 C 2 MXene increases the thermal conductivity to 0.587 W m −1 K −1 , attaining 141.3% improvement compared with that of unreinforced sample.…”

Section: Introductionmentioning

confidence: 99%

Mechanotribological Aspects of MXene‐Reinforced Nanocomposites

2020

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MXenes are recently discovered 2D nanomaterial with superior mechanical, thermal, and tribological properties, being commonly employed in a wide variety of critical research areas, ranging from cancer therapy to energy and environmental applications. Due to their special properties, such as mechanoceramic nature with excellent mechanical performance, thermal stability and rich surface properties, MXenes have tremendous potential as advanced composite structures, especially those based on polymers due to a great affinity between macromolecules and the terminating groups of 2D MXenes. MXenes have been extensively explored in metal matrix nanocomposites as well as in solid‐ or liquid‐based lubrication systems owing to the 2D structure and antifriction characteristics. The purpose of the this paper is to provide a comprehensive insight into the material, mechanical, and tribological properties of the MXene nanolayers with discussions on the recent advancements attained from MXene‐reinforced nanocomposites starting with the synthesis, fabrication techniques, intricacies of the underlying physics and mechanisms, and finally focusing on the progress in computational studies. This analysis of MXene‐based composites will stimulate an emerging field with innumerable opportunities and ample potentials to produce newfangled materials and structures with targeted properties.

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“…In particular, recent research reports indicate that CeO 2 is becoming one of the most promising photocatalysts owing to its rich oxygen vacancies and formidable redox capabilities 12,13 . In order to overcome the inherent defects of CeO 2 photocatalysts to enhance photocatalytic efficiency, reasonable coupling with other semiconductors has proven to be a valuable strategy 14 . For example, Liu et al designed and synthesized CeO 2 /g‐C 3 N 4 composite photocatalysts to significantly improve the hydrogen evolution activity under visible light 15 .…”

Section: Introductionmentioning

confidence: 99%

Construction of CoS/CeO₂ heterostructure nanocages with enhanced photocatalytic performance under visible light

Meng

Zhou

et al. 2020

J Am Ceram Soc

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Exploring non‐noble metal photocatalysts with high activity and stability is always fascinating. Herein, the hollow CoS nanocages deriven from ZIF‐67 have been reported for the first time to combine with CeO2 NPs grown in situ for photocatalytic degradation of stubborn pollutants. The unique CoS nanocages not only provide rich active sites but also enhance light capture. CeO2 NPs loaded on the surface accelerate the separation of photocharges and extend the lifetime of photogenerated carriers. The optimized photocatalysts show outstanding activity and stability for the photodegradation of tetracycline and phenol under visible light, and the corresponding photodegradation efficiency is 96.5% and 90.5% at 60 minutes. The novel multi‐stage nanocage structure simultaneously realizes extended light absorption and improved photocharges transfer efficiency. This work provides an exclusive perspective to design high‐efficiency photocatalysts with hollow structures for environmental restoration.

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Built-in electric field induced CeO2/Ti3C2-MXene Schottky-junction for coupled photocatalytic tetracycline degradation and CO2 reduction

Cited by 178 publications

References 61 publications

MXenes as noble-metal-alternative co-catalysts in photocatalysis

MXenes as noble-metal-alternative co-catalysts in photocatalysis

Mechanotribological Aspects of MXene‐Reinforced Nanocomposites

Construction of CoS/CeO₂ heterostructure nanocages with enhanced photocatalytic performance under visible light

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Built-in electric field induced CeO2/Ti3C2-MXene Schottky-junction for coupled photocatalytic tetracycline degradation and CO2 reduction

Cited by 178 publications

References 61 publications

MXenes as noble-metal-alternative co-catalysts in photocatalysis

MXenes as noble-metal-alternative co-catalysts in photocatalysis

Mechanotribological Aspects of MXene‐Reinforced Nanocomposites

Construction of CoS/CeO2 heterostructure nanocages with enhanced photocatalytic performance under visible light

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Construction of CoS/CeO₂ heterostructure nanocages with enhanced photocatalytic performance under visible light