1. College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
2. Engineering Research Center of Dairy Quality and Safety Control Technology Ministry of Education Inner Mongolia University Hohhot 010021 P. R. China
3. Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 P. R. China