Highly Selective Adsorption of 99 TcO 4 - /ReO 4 - by a Novel Polyamide-Functionalized Polyacrylamide Polymer Material.

The treatment of radioactive wastewater is one of the major problems in the current research. With the development of nuclear energy, the efficient removal of 99 TcO 4 - in radioactive wastewater has attracted the attention of countries all over the world. In this study, a novel functional polyamide polymer p-(Amide)-PAM was synthesized by the two-step method. The experimental results show that p-(Amide)-PAM has good adsorptive properties for 99 TcO 4 - /ReO 4 - and has good selectivity in the nitric acid system. The kinetics of the reaction of p-(Amide)-PAM with 99 TcO 4 - /ReO 4 - was studied. The results show that p-(Amide)-PAM has a fast adsorption rate for 99 TcO 4 - /ReO 4 - , the saturated adsorption capacity reaches 346.02 mg/g, and the material has good reusability. This new polyamide-functionalized polyacrylamide polymer material has good application prospects in the removal of 99 TcO 4 - from radioactive wastewater.