1. Shenyang Key Laboratory of Micro-arc Oxidation Technology and Application, Institute of Innovative Science and Technology, Shenyang University, Shenyang 110044, China
2. College of Mechanical Engineering, Shenyang University, Shenyang 110044, China
3. Key Lab for Eco-restoration of Regional Contaminated Environment (Shenyang University), Ministry of Education, Shenyang 110044, China