Citation: Ziyu Yao, Huan Yang, Luyang Zuo, Fang Wang. Both promoting tetracycline decomposition in combination with CO₂ reduction for flower-like MoS₂ modified by Ti₃C₂ MXene quantum dots[J]. Chinese Chemical Letters, ;2026, 37(9): 111595. doi: 10.1016/j.cclet.2025.111595 shu

Both promoting tetracycline decomposition in combination with CO₂ reduction for flower-like MoS₂ modified by Ti₃C₂ MXene quantum dots

Ziyu Yao ^{a, b} ,
Huan Yang ^{a, b} ,
Luyang Zuo ^{a, b} ,
Fang Wang ^{a, b, *,}

a.
Key Laboratory of Magnetic Molecules and Magnetic Information, Materials of Ministry of Education & School of Materials Science and Engineering of Shanxi Normal University, Taiyuan 030006, China
b.
Shanxi Key Laboratory of Advanced Magnetic Materials and Devices & Research Institute of Materials Science of Shanxi Normal University, Taiyuan 030006, China

wangfanghc@sxnu.edu.cn

Received Date: 30 May 2025
Revised Date: 2 July 2025
Accepted Date: 16 July 2025
Available Online: 16 July 2025

Figures(6)

The utilization of piezo-photocatalytic technology to achieve the efficient decomposition of antibiotics and stable CO₂ reduction (dual-functional catalytic system) represents a cutting-edge approach for concurrently mitigating environmental pollution and the energy crisis. In this work, Ti₃C₂ MXene quantum dots with high electrical conductivity were uniformly modified on the surface of three-dimensional flower-like MoS₂, aiming to realize the piezo-photocatalytic degradation of tetracycline hydrochloride (TC-HCl) coupled with the reduction of CO₂ to CO. Remarkably, the degradation rate constant of the optimal Ti₃C₂ MXene quantum dots/MoS₂ sample reached 0.178 min^-1, which was 7.7 times higher than that of pure MoS₂ under single photocatalysis and 7.1 times higher than that under single piezocatalysis. Meanwhile, the CO yield rates reached 28 µmol g^-1 h^-1, which was 4.6 times and 6.5 times higher than that of the single catalytic systems based on MoS₂, respectively. The introduction of Ti₃C₂ MXene quantum dots significantly enhanced the current density, charge transfer efficiency, and light absorption capacity, and also effectively suppressed the recombination of electron-hole pairs. This work provides a novel strategy for MoS₂-based composites to construct a dual-functional catalytic system via piezo-photocatalytic technology, offering a potential solution to address the concurrent challenges of environmental pollution and the energy crisis.
- Piezo-photocatalytic technology,
- Dual-functional catalytic system,
- Decomposition of antibiotics,
- Stable CO₂ reduction,
- Ti₃C₂ MXene quantum dots
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沈阳化工大学材料科学与工程学院沈阳 110142

Both promoting tetracycline decomposition in combination with CO2 reduction for flower-like MoS2 modified by Ti3C2 MXene quantum dots

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通讯作者: 陈斌, bchen63@163.com

Both promoting tetracycline decomposition in combination with CO₂ reduction for flower-like MoS₂ modified by Ti₃C₂ MXene quantum dots