2004.7-2010.7         Lecturer in School of Chemistry and Chemical Engineering,

                                Baoji University of Arts and Sciences, P. R. China

2016.7-2018.3         Postdoctoral Research fellow in Chemistry,

                                Jilin University, P. R. China

2018.12-2019.12     Postdoctoral Research fellow in Chemistry,

                                University of Tennessee, America

2017.4-2022.1         Professor in School of Chemistry and Chemical Engineering,

                                Baoji University of Arts and Sciences, P. R. China

2022.3-Now             Professor in School of Chemistry,

                                 Xi'an University, P. R. China