Engineering a surface defect-rich Ti3C2 quantum dots/mesoporous C3N4 hollow nanosphere Schottky junction for efficient N2 photofixation

Chang, Binbin; Guo, Yali; Liu, Huili; Li, Li; Yang, Baocheng

doi:10.1039/d1ta09941h

Cited by 57 publications

(29 citation statements)

References 50 publications

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“…In 2022, the Ti 3 C 2 MQDs with the surfaces detect-rich/3D mesoporous C 3 N 4 were prepared by electrostatically self-assembly strategy (Fig. 11a) [76]. TEM image confirmed that the MQDs were uniformly dispersed on the surface of hollow C 3 N 4 (Fig.…”

Section: D Mqds/3d Nanomaterialsmentioning

confidence: 96%

“…The defect sites with lower binding energy facilitate to promote the adsorption of N 2 molecules. In 2022, Chang et al [76] engineered a photocatalyst with Schottky junction and defects. The Ti 3 C 2 MQDs with amount of oxygen vacancies (OV) and Ti 3+ sites were anchored on the surface of mesoporous C 3 N 4 hollow nanosphere (Fig.…”

Section: Constructing Defects Of Mqds For Reactant Adsorptionmentioning

confidence: 99%

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Quantum Dots Compete at the Acme of MXene Family for the Optimal Catalysis

2022

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It is well known that two-dimensional (2D) MXene-derived quantum dots (MQDs) inherit the excellent physicochemical properties of the parental MXenes, as a Chinese proverb says, “Indigo blue is extracted from the indigo plant, but is bluer than the plant it comes from.” Therefore, 0D QDs harvest larger surface-to-volume ratio, outstanding optical properties, and vigorous quantum confinement effect. Currently, MQDs trigger enormous research enthusiasm as an emerging star of functional materials applied to physics, chemistry, biology, energy conversion, and storage. Since the surface properties of small-sized MQDs include the type of surface functional groups, the functionalized surface directly determines their performance. As the Nobel Laureate Wolfgang Pauli says, “God made the bulk, but the surface was invented by the devil,” and it is just on the basis of the abundant surface functional groups, there is lots of space to be thereof excavated from MQDs. We are witnessing such excellence and even more promising to be expected. Nowadays, MQDs have been widely applied to catalysis, whereas the related reviews are rarely reported. Herein, we provide a state-of-the-art overview of MQDs in catalysis over the past five years, ranging from the origin and development of MQDs, synthetic routes of MQDs, and functionalized MQDs to advanced characterization techniques. To explore the diversity of catalytic application and perspectives of MQDs, our review will stimulate more efforts toward the synthesis of optimal MQDs and thereof designing high-performance MQDs-based catalysts.

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Section: D Mqds/3d Nanomaterialsmentioning

confidence: 96%

Section: Constructing Defects Of Mqds For Reactant Adsorptionmentioning

confidence: 99%

Quantum Dots Compete at the Acme of MXene Family for the Optimal Catalysis

2022

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“…O v is one of the most important vacancies in the photocatalytic nitrogen fixation process. 33,67–71 It becomes the electron donor center in the photocatalytic process by virtue of its localized electron property, which increases the amount of N 2 capture and activation. Furthermore, oxygen vacancies can also be used to regulate the atomic arrangement and electronic structure of the catalyst surface, accelerate the separation of photogenerated carriers, inhibit their recombination, and allow more subsequent electrons to enter.…”

Section: Recent Catalyst Advances In Photocatalytic Nitrogen Fixationmentioning

confidence: 99%

“…The preparation methods of oxygen vacancies include the following: (1) heat treatment of polyols, NaOH and N 2 . 34,67,68,73 (2) The introduction of heteroatomic doping simultaneously generates oxygen vacancies. 91,92 (3) Ultraviolet photolysis.…”

Section: Recent Catalyst Advances In Photocatalytic Nitrogen Fixationmentioning

confidence: 99%

Structural design and control of photocatalytic nitrogen-fixing catalysts

Xia

et al. 2022

J. Mater. Chem. A

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“…Depending on synthesis methods, functional groups on the surface can be modified to further tune the PL of CQDs. By introducing electron donor and/or electron acceptor, PL of CQDs can be quenched ( Wang et al, 2009 ; Basit et al, 2022 ; Chang et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%