1. School
of the Chemistry and Environment, Jiaying University, Meizhou, Guangdong 514015, P.R. China
2. Engineering
and Technology Research Center for Inorgnic Type Ion-Exchange Resin, Henan University, Kaifeng, Henan 475004, P.R. China
3. Luoyang
Dingli Environmental Protection Technology Co., Limited, Luoyang, Henan 471012, P.R. China
4. Jinchuan
Group Limited, Jinchang, Gansu 737100, P.R. China