Xiaotian Wang is a professor and doctoral supervisor at the School of Chemistry, Beihang University, and a national outstanding youth. Mainly engaged in the mechanism and application research of surface enhanced Raman scattering (SERS) spectroscopy of nanomaterials. In recent years, a series of new SERS substrate materials with high sensitivity and good selectivity have been developed, achieving quantitative detection of trace organic pollutant molecules in complex solution systems. The relevant research results are presented in J. Am. Chem. Soc., Angew. Chem. Int. Ed., Adv. Mater., Chem. Sci. and other international journals have published over 60 SCI indexed papers, with over 4000 citations and 4 authorized invention patents. Hosted multiple scientific research projects funded by the National Natural Science Foundation of China.