1. Shenzhen Shenshui Bao’an Water Co., Ltd., Shenzhen, Guangdong 518055, China
2. School of Materials and Environmental Engineering, Shenzhen Polytechnic, Shenzhen, Guangdong 518055, China
3. Georgia Tech Shenzhen Institute, Tianjin University (GTSI), Shenzhen, Guangdong 518055, China