期刊论文

Polymeric Hydrophobically-Modified Porous Materials for the Adsorption of Radioactive Gaseous Iodine at High Humidity

中文

世界核地质科学

1672-0636

2023

40

S1

673-679

10.3969/j.issn.1672-0636.2023.S1.028

中国国家原子能机构乏燃料后处理专项(编号:科工二司[2020]441号)资助。

本校为第一机构

在高湿环境下去除放射性气态碘时，较高的湿度会对活性炭吸附碘效率产生严重影响。以聚二乙烯基苯（PDVB）为疏水改性剂，采用简单的液相浸渍法对不同种类的活性炭进行疏水改性。通过表征活性炭孔隙结构、表面疏水性能和碘吸附法探究了其在高湿环境下对气态碘的吸附性能和改性机理。结果表明：PDVB本身具有多孔结构且疏水性优异，浸渍改性后，PDVB多孔纳米粒子可以进入材料孔隙结构中改善活性炭的多孔结构性能，增强比表面积和微孔容积，进而有效提升材料对碘的吸附容量。此外，在相对湿度（RH）为96%的高湿度环境进行碘吸附性能测试，由于PDVB疏水改性后疏水性增强，减弱了对水分子的亲和力，降...

The relatively higher humidity has a significant impact on the adsorption efficiency when activated carbon is used to remove radioactive gaseous iodine.In this paper,different types of activated carbon were hydrophobically modified by a simple liquid phase impregnation ...MORE The relatively higher humidity has a significant impact on the adsorption efficiency when activated carbon is used to remove radioactive gaseous iodine.In this paper,different types of activated carbon were hydrophobically modified by a simple liquid phase impregnation method using poly(divinylbenzene)(PDVB)as a hydropho...