Journal
ACS APPLIED NANO MATERIALS
Volume 3, Issue 10, Pages 9581-9603Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.0c02481
Keywords
Ti3C2 MXenes; photocatalytic; layered structure; quantum dots; Schottky junction; cocatalyst
Funding
- National Natural Science Foundation of China [51602297]
- Qingdao Municipal Science and Technology Bureau [17-3-3-71 nsh]
- Taishan Scholars Foundation of Shandong province [tsqn201909058]
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Two-dimensional (2D) Ti3C2 MXenes have aroused tremendous attention as frontier materials for energy storage, solar energy conversion, and environmental remediation because they exhibit high elemental abundance in the earth, a unique layered microstructure, abundant surface functional groups, and prominent electrical conductivity and optical properties. The present study summarizes and discusses the most recent advancements in the synthesis methods of Ti3C2 MXenes; the routes of intercalation, exfoliation, and cutting for multilayered Ti3C2 to obtain its delaminated compounds and quantum dots; and their photocatalysis applications. Given the differences of applied Ti3C2 on morphology and size, high-efficiency Ti3C2-based Schottky junction photocatalysts and its derivative photocatalysts are generalized and discussed. The advantages of Ti3C2 MXenes in synthesizing high-efficiency photocatalysts are analyzed, consisting of electronic acceptor, substrate, light harvesting, cocatalyst, and precursor. Lastly, the lingering challenges and directions for the subsequent Ti3C2-based photocatalyst development are proposed.
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