[Wei, Yuezhou; Hamza, Mohammed F.] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

[Hamza, Mohammed F.] Nucl Mat Author, POB 530, Cairo, Egypt.

[Guibal, Eric] IMT Mines Ales, Polymers Compos & Hybrids PCH, Ales, France.

[Wei, Yuezhou] Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai, Peoples R China.

[Fouda, Amr] Al Azhar Univ, Fac Sci, Bot & Microbiol Dept, Cairo 11884, Egypt.

[Guibal, E.] P

[Wei, Y.] S

Polymers Composites and Hybrids (PCH), France

School of Nuclear Science and Technology, China

An efficient magnetic composite sorbent was synthesized by incorporation of magnetite nanoparticles into polymer matrix (obtained by formaldehyde polycondensation of guanidine and amino hydroxynaphthalene sulfonic acid);Temkin equations fitted sorption isotherms while uptake kinetics are successfully modeled with the pseudo-first order rate equation;The sensitivity of uranyl ions to reduction explains the complementary metal sorption and enhanced selectivity under UV irradiation for both synthetic and complex industrial solutions;UV exposure improves the stability of sorption properties at recycling (uranium being fully desorbed using nitric acid solution);UV irradiation allows to both increase uranium sorption capacity and enhance uptake kinetics

核科学技术学院