Effective decontamination of 99TcO4−/ReO4− from Hanford low-activity waste by functionalized graphene oxide–chitosan sponges
| العنوان: | Effective decontamination of 99TcO4−/ReO4− from Hanford low-activity waste by functionalized graphene oxide–chitosan sponges |
|---|---|
| المؤلفون: | Xian Zeng, Hao Zhang, Chuan Lu, Chunqing Cai, Zhigang Zhao, Jianguo Li, Fan Yang, Ruixi Bai, Chang Du |
| المصدر: | Environmental Chemistry Letters. 18:1379-1388 |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Tertiary amine, Chemistry, Radioactive waste, 02 engineering and technology, Human decontamination, 010501 environmental sciences, Contamination, 021001 nanoscience & nanotechnology, 01 natural sciences, Adsorption, Chemical engineering, Nuclear fission, Hazardous waste, Environmental Chemistry, Solubility, 0210 nano-technology, 0105 earth and related environmental sciences |
| الوصف: | Treatment and recycling of radioactive waste are major challenges for the nuclear energy sector. Pertechnetate anions, 99TcO4−, occur in nuclear waste and are formed mainly during nuclear fission. 99TcO4− is a very hazardous contaminant due to its long half-life and high solubility and mobility in water. The effective capture of 99Tc contamination at legacy nuclear sites remains a serious and unsolved environmental issue. In this work, 99TcO4−/ReO4− was adsorbed by compressible graphene–chitosan sponges with grafted tertiary amine groups. Moreover, the hydrophobic branched chains strongly reduced the interference of competitive anions during adsorption. Results show that 99TcO4−/ReO4− can be effectively removed even under highly acidic conditions and in the presence of competing anions. More than 98% of 99TcO4−/ReO4− was removed using simulated nuclear wastes. |
| تدمد: | 1610-3661 1610-3653 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::48f55a3bcaa61477e746fb9559e1e711 https://doi.org/10.1007/s10311-020-01005-w |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........48f55a3bcaa61477e746fb9559e1e711 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 16103661 16103653 |
|---|