University Chemistry ›› 2022, Vol. 37 ›› Issue (12): 2111060.doi: 10.3866/PKU.DXHX202111060

• Chemistry Laboratory • Previous Articles     Next Articles

Design of a Comprehensive Experiment: Titanium Carbide MXenes Mediated In Situ Reduction for Label-Free and Visualized Sensing of Silver Ions

Ningning Dong1,2, Linqi Xu2, Feng Xiong2, Boyu Yan2, Kun Li1,2,3,*(), Dongcai Guo2,3   

  1. 1 State Key Laboratory of Chemo/Biosensing and Chemometrics, Changsha 410082, China
    2 College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
    3 National Demonstration Center for Experimental Chemistry Education (Hunan University), Changsha 410082, China
  • Received:2021-11-22 Accepted:2021-12-16 Published:2022-02-10
  • Contact: Kun Li


We select advanced scientific research results that are suitable for undergraduate laboratory teaching. In order to present a complete process of scientific researches for students, the preparation and characterization of inorganic materials, as well as the establishment and application of optical analysis methods are integrated in this experiment. On the basis of titanium carbide mediated in situ reduction, a label-free, visualized plasmonic sensing method was constructed to achieve highly sensitive and selective detection of silver ions. The implementation of this experiment will not only help students grasp the research paradigm of nanoanalytical chemistry and develop a habit of innovative scientific thinking, but also stimulate students' interests in studying and enthusiasm to science for serving our country.

Key words: Research-oriented comprehensive experiment, Titanium carbide, Silver ions, Label-free, Colorimetric sensing


  • G64