铀酰在氧化石墨烯和碳纳米纤维上吸附的研究进展

Advances in Adsorption of Uranyl on Graphene Oxide and Carbon Nanofiber

铀是核能利用过程中(包括铀矿开采加工、乏燃料后处理和放射性废物的处置等)存在的重要元素之一。铀酰( UO2^2+)具有很好的水溶性易于在环境中扩散、迁移与转化。由于其放射性和化学毒性,铀酰进入环境中将对生物和人类造成潜在的威胁。因此,开发新型的纳米材料对水中铀酰的治理具有非常重要的意义。本论文评述氧化石墨烯(GO)、碳纳米纤维(CNF)及其复合材料对铀酰的吸附过程,为实际含铀废水的治理提供理论依据,为我国核能可持续发展和核环境的保护提供技术支持。

Uranium is one of the important elements in the process of nuclear energy utilization, including uranium mining and processing, spent fuel reprocessing and radioactive waste disposal. Uranyl( UO2^2+) is easy to diffuse, migrate and transform in the environment due to its good water-solubility. Owing to its radioactivity and chemical toxicity, uranyl will pose a potential threat to both creatures and humans when it entered into environment. Therefore, it is very important to develop new nanomaterials for the treatment of uranyl from aqueous solution. This paper reviews the adsorption process of uranyl on graphene oxide(GO), carbon nanofiber(CNF) and their composites, providing theoretical basis for the actual treatment of uranium containing wastewater, and providing technical support for the sustainable development of nuclear energy and the protection of nuclear environment in China.