Porphyrin-based cationic conjugated network prepared by Zincke reaction and its adsorption for TcO4−/ReO4

• Published in: Journal of radioanalytical and nuclear chemistry Vol. 330; no. 3; pp. 1165 - 1176
• Main Authors: Xu, Yuwei, Tian, Yin, Chen, Bo, Yan, Zijun, Ding, Jie, Huang, Yalin, Kang, Jinyang, Chen, Shanyong, Jin, Yongdong, Xia, Chuanqin
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.12.2021; Springer Nature B.V
• Subjects: Adsorption; Cations; Chemistry; Chemistry and Materials Science; Diagnostic Radiology; Groundwater; Hadrons; Heavy Ions; Inorganic Chemistry; Nuclear Chemistry; Nuclear Physics; Physical Chemistry; Porphyrins; Selectivity; TcO; Adsorption; Porphyrin; ReO; COFs
• ISSN: 0236-5731; 1588-2780
• DOI: 10.1007/s10967-021-08039-6

In this paper, porphyrin-based cationic conjugated network (PCCN) nanosheets were synthesized, and its adsorption for TcO 4 − /ReO 4 − was investigated. This material was stacked with AB dislocation, with an aperture of 1.2 nm. The Re(VII)/Tc(VII) adsorption kinetics of PCCN is extremely fast, and the adsorption capacity is relatively large, the selective order is ReO 4 −  > NO 3 −  > Cl − . XPS and DFT revealed that the exchange of Cl − on PCCN with ReO 4 − , while the hydrophobic pore of PCCN are the keys to improve adsorption selectivity. It could be used to remove Tc from groundwater around nuclear facilities. Graphic abstract