期刊论文

Three-dimensional electrochemical adsorption of uranyl carbonate ions based on rGO/BB hydrogel particle electrodes

中文

核技术

0253-3219

2024

47

8

23-35

10.11889/j.0253-3219.2024.hjs.47.080301

本校为第一机构

铀的采冶过程中,会产生大量的含铀废水,容易造成地下水的污染.在受污染的地下水中,铀常与碳酸盐结合形成扩散性更强、迁移性更高的碳酸铀酰络合物,这使得铀的去除变得更加困难.将氧化石墨烯和竹炭共混,通过低温水热还原反应将竹炭组装至还原氧化石墨烯水凝胶的骨架上,制备具有三维多孔结构的rGO/BB水凝胶.将rGO/BB水凝胶作为三维电化学系统中的粒子电极,探究电解质(硝酸钠)浓度、外加电压、极板间距、pH和rGO/BB水凝胶粒子电极用量等因素对三维电化学系统吸附碳酸铀酰离子性能的影响.实验结果表明,在pH 4～8、极板间距 4 cm、电压 5 V、rGO/BB水凝胶用量 90 mg的条件下,对 200 mL浓度为 1～1 00...

[Background]In uranium mining and smelting,a significant amount of uranium-containing wastewater is generated,which can easily cause groundwater pollution.In polluted groundwater,uranium often combines with carbonates to form more diffusive and migratory uranyl carbonate complexes,making uranium removal more difficult.[Purpose]This study aims to consider the performance of a three-dimensional electrochemical system of rGO/BB hydrogel particle electrodes on uranyl carbonate,and implement an efficient method for removing uranium-containing soluti...