| Recycling of some solid wastes to produce silica anchored on graphene oxide as sorbent material for uranium ions |
| Paper ID : 1033-ICEE (R2) |
| Authors: |
|
Mohamed A. Hassanin1, Mohamed A. Youssef1, Ahmed K. Sakr1, Hamed I. Mira2, Tarek F. Mohammaden1, Khaled A. Abd El-Rahem3, Mohamed F. Cheira *1 1Nuclear Materials Authority, P.O. Box 530 El Maadi, Cairo, Egypt 2Chairman of Nuclear Materials Authority 3Chemistry Department, Faculty of Science, Al-Azhar University |
| Abstract: |
| The wet process captured silica from rice husk, and also graphene oxide was made from carbon stocks of Zn-C batteries waste via the Hummer processes. The organized silica was attached to the gained graphene oxide to acquire silica/graphene oxide (SiO2/GO) as a sorbent. SiO2/GO was discriminated upon EDX, BET, XRD, SEM, and FTIR. Practical attitudes toward U(VI) sorption include pH, sorption time, SiO2/GO dose, U(VI) Conc., and temp. were premeditated. The practical consequences disclosed that the superlative U(VI) uptake on SiO2/GO is 145.0 mg/g with pH4. The kinetic statistics fit fine through the pseudo-2nd order modeling. Also, Langmuir's sorption modeling designated well the sorption isotherm; nevertheless, sorption progression was random, spontaneous, besides exothermic. Additionally, SiO2/GO was essentially regenerated with a S:L ratio of 1:50 of 0.8 M H2SO4 and a 60 min eluting time. Sorption-desorption seven cycles were executed to inspect the practicality and frequent usage of SiO2/GO. |
| Keywords: |
| Silica, Anchored, Graphene oxide, Uranium, Sorption, Desorption. |
| Status : Paper Accepted |
