Citation: Yangyang Sun, Tianyu Huang, Houqiang Ji, Tian Tian, Xingwang Zhu, Wenlin Xu, Huan Pang. Efficient charge separation by Ti₃C₂ MXene modified nano MIL-125(Ti) Schottky photocatalysts for N₂ reduction and tetracycline hydrochloride removal[J]. Chinese Chemical Letters, ;2026, 37(3): 111391. doi: 10.1016/j.cclet.2025.111391 shu

Efficient charge separation by Ti₃C₂ MXene modified nano MIL-125(Ti) Schottky photocatalysts for N₂ reduction and tetracycline hydrochloride removal

Yangyang Sun ^{a, 1} ,
Tianyu Huang ^{a, 1} ,
Houqiang Ji ^a ,
Tian Tian ^a ,
Xingwang Zhu ^a ,
Wenlin Xu ^a ,
Huan Pang ^{a, b, *,}

a.
School of Chemistry and Chemical Engineering (Institute for Innovative Materials and Energy), Yangzhou University, Yangzhou 225009, China
b.
State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China

panghuan@yzu.edu.cn

Received Date: 22 February 2025
Revised Date: 18 April 2025
Accepted Date: 28 May 2025
Available Online: 28 May 2025

Figures(6)

In this study, we successfully construct a non-noble metal-based Schottky photocatalyst MX@MIL-125 (MX is shorted for Ti₃C₂ MXene) by combining the Ti-based metal-organic framework MIL-125(Ti) with Ti₃C₂ MXene. Leveraging the unique surface properties of MXene, a close and uniform distribution of nano-cake-like MIL-125(Ti) was achieved on the two-dimensional Ti₃C₂ MXene layers. The introduction of Ti₃C₂ MXene not only broadens the light absorption range but also adjusts the local coordination structure between the interfaces. This heterojunction significantly promotes the separation and transfer of photogenerated carriers. The photocatalytic N₂ reduction efficiency of MX@MIL-125-20 is 11-fold higher than that of pristine MIL-125(Ti) (48.8 vs. 4.6 µmol g_cat⁻¹ h⁻¹), and the photodegradation efficiency of tetracycline hydrochloride (TCH) is increased by about 18% (92.95% vs. 74.67%). This work may provide new insights for the design of innovative photocatalysts for various chemical redox reactions.
- MIL-125,
- MXene,
- Schottky photocatalysts,
- Photocatalytic N₂ reduction,
- Photocatalytic TCH degradation
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Efficient charge separation by Ti3C2 MXene modified nano MIL-125(Ti) Schottky photocatalysts for N2 reduction and tetracycline hydrochloride removal

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通讯作者: 陈斌, bchen63@163.com

Efficient charge separation by Ti₃C₂ MXene modified nano MIL-125(Ti) Schottky photocatalysts for N₂ reduction and tetracycline hydrochloride removal