Institute of Environmental Geochemistry, 34a Palladin ave, Kiev 03142, Ukraine.
School of Chemical Engineering and Technology Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, South Korea.
Nanoscale Res Lett. 2014 Apr 13;9(1):180. doi: 10.1186/1556-276X-9-180. eCollection 2014.
A nanocomposite adsorbent based on potassium nickel hexacyanoferrate-loaded polypropylene fabric was synthesized for selective removal of Cs ions from contaminated waters by a two-stage synthesis: radiation-induced graft polymerization of acrylic acid monomer onto the nonwoven polypropylene fabric surface with subsequent in situ formation of potassium nickel hexacyanoferrate (KNiHCF) nanoparticles within the grafted chains. Data of scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy confirmed the formation of KNiHCF homogeneous phase on the fabric surface, which consisted of crystalline cubic-shaped nanoparticles (70 to 100 nm). The efficiency of the synthesized adsorbent for removal of cesium ions was evaluated under various experimental conditions. It has demonstrated a rapid adsorption process, high adsorption capacity over a wide pH range, and selectivity in Cs ion removal from model solutions with high concentration of sodium ions.
一种基于负载钾镍六氰合铁酸盐的聚丙烯纤维的纳米复合材料吸附剂，通过两步合成法合成，用于从受污染水中选择性去除 Cs 离子：用丙烯酸单体辐射引发接枝到无纺聚丙烯纤维表面，随后在接枝链内原位形成钾镍六氰合铁酸盐（KNiHCF）纳米颗粒。扫描电子显微镜、X 射线衍射和傅里叶变换红外光谱的数据证实了 KNiHCF 均匀相在纤维表面的形成，它由结晶的立方形状纳米颗粒（70 至 100nm）组成。在各种实验条件下评估了合成吸附剂对铯离子去除的效率。它表现出快速吸附过程、在宽 pH 范围内的高吸附容量以及从含有高浓度钠离子的模型溶液中选择性去除 Cs 离子的能力。
