1. Collaborative Innovation Center of Henan Province for Energy-Saving Building Materials Xinyang Normal University, Xinyang, Henan 464000, P.R. China
2. Analysis & Testing Center, Xinyang Normal University, Xinyang, Henan 464000, China
3. College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang, Henan 464000, China
4. College of Sciences, Shanghai University, Shanghai 200444, China