Photoinduced Charge Transfer Empowers Ta4C3 and Nb4C3 MXenes with High SERS Performance

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2024-09-25 DOI:10.1021/acs.langmuir.4c02165

Leilei Lan, Ziheng Ni, Caiye Zhao, Juan Gao, Xiao Tang, Zhongwei Qu, Lingcheng Zheng, Xingce Fan, Teng Qiu

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Abstract

This study introduces two-dimensional (2D) Ta₄C₃ and Nb₄C₃ MXenes as outstanding materials for surface-enhanced Raman scattering (SERS) sensing, marking a significant departure from traditional noble-metal substrates. These MXenes exhibit exceptional SERS capabilities, achieving enhancement factors around 10⁵ and detection limits as low as 10^–7 M for various analytes, including environmental pollutants and drugs. The core of their SERS functionality is attributed to the robust interfacial photoinduced charge-transfer interactions between the MXenes and the adsorbed molecules. This deep insight not only advances our understanding of MXene materials in SERS applications but also opens new avenues for developing highly sensitive and selective SERS sensors. The potential of Ta₄C₃ and Nb₄C₃ MXenes to revolutionize SERS technology underscores their importance in environmental monitoring, food safety, and beyond.

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光诱导电荷转移赋予 Ta4C3 和 Nb4C3 MXenes 高 SERS 性能

本研究介绍了二维（2D）Ta4C3 和 Nb4C3 MXenes，它们是表面增强拉曼散射（SERS）传感的杰出材料，标志着与传统贵金属基底的重大差异。这些 MXenes 具有卓越的 SERS 功能，对包括环境污染物和药物在内的各种分析物具有约 105 的增强因子和低至 10-7 M 的检测限。其 SERS 功能的核心归功于 MXenes 与吸附分子之间强大的界面光诱导电荷转移相互作用。这一深刻的见解不仅加深了我们对 MXene 材料在 SERS 应用中的理解，还为开发高灵敏度和高选择性的 SERS 传感器开辟了新的途径。Ta4C3 和 Nb4C3 MXenes 在革新 SERS 技术方面的潜力凸显了它们在环境监测、食品安全等方面的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567