Extraction of uranium from water: A strategy based on tribocatalysis

IF 5.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Research Bulletin Pub Date : 2024-09-28 DOI:10.1016/j.materresbull.2024.113109

Baoyi Liu , Shuo Zhang , Zihao Ye , Feixue Gao , Peng Zhao , Ming Fang , Bin Ma , Kangle Shang , Xiaoli Tan

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Abstract

Due to most of the U(VI) extraction methods suffering the issues of high cost and low efficiency, finding a new method is still urgent. In this work, we report a way to remove U(VI) from water by tribocatalysis, where a natural mineral of attapulgite is used as the tribocatalyst. By a careful investigation, it is confirmed that the ultrasonic-generated microbubbles rub with the attapulgite to form free radicals of h⁺, ·O₂^-, and ·OH, which could then be transformed to H₂O₂ to react with U(VI) to form UO₂O₂. The extraction rate of U(VI) from water is up to 87.88% (50 ppm) in 200 min. This work using the natural mineral attapulgite being tribocatalyst has the advantages of low cost and high efficiency, which also provide new insight into the conversion of U(VI) in natural conditions and will have great potential in the treatment of nuclide wastewater and seawater.

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从水中提取铀：基于摩擦催化的策略

由于大多数 U（VI）萃取方法都存在成本高、效率低的问题，因此寻找一种新的方法仍然迫在眉睫。在这项工作中，我们报告了一种通过摩擦催化去除水中六价铀的方法，其中使用了一种天然矿物阿塔蓬石作为摩擦催化剂。通过仔细研究证实，超声波产生的微气泡与阿塔蓬石摩擦形成 h+、-O2- 和 -OH 自由基，然后这些自由基可转化为 H2O2，与 U（VI）反应生成 UO2O2。在 200 分钟内，从水中萃取铀(VI)的比率高达 87.88%（50 ppm）。这项利用天然矿物阿塔波来石作为摩擦催化剂的研究具有成本低、效率高的优点，同时也为自然条件下的铀(VI)转化提供了新的见解，在核素废水和海水处理方面具有巨大的潜力。

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.