Application of ion-exchange resin beads to produce magnetic adsorbents

被引:17
作者
Sikora, Emoke [1 ,2 ]
Hajdu, Viktoria [1 ,2 ]
Muranszky, Gabor [1 ,2 ]
Katona, Kitti Krisztina [1 ]
Kocserha, Istvan [2 ,3 ]
Kanazawa, Toshiyuki [4 ]
Fiser, Bela [1 ,2 ,5 ]
Viskolcz, Bela [1 ,2 ]
Vanyorek, Laszlo [1 ,2 ]
机构
[1] Univ Miskolc, Inst Chem, Miskolc, Hungary
[2] Univ Miskolc, Higher Educ Ind Cooperat Ctr, Miskolc, Hungary
[3] Univ Miskolc, Inst Ceram & Polymer Engn, Miskolc, Hungary
[4] JEOL EUROPE SAS, 1 Allee Giverny, Croissy Sur Seine, France
[5] Ferenc Rakoczi II Transcarpathian Hungarian Inst, Beregszasz, Transcarpathia, Ukraine
关键词
Heavy metal ion removal; Magnetite; Adsorption capacity; Langmuir constant; HEAVY-METAL IONS; EFFICIENT REMOVAL; AQUEOUS-SOLUTION; ADSORPTION; NANOPARTICLES; NI(II); PB2+; FABRICATION; CD(II); CR(VI);
D O I
10.1007/s11696-020-01376-y
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Heavy metal ions are among the most dangerous contaminants, which can cause serious health problems. In this work, ion-exchange resin beads were used as supports for magnetite (Fe3O4) synthesis to produce heavy metal adsorbents which can be easily separated by magnetic field. The first step of the magnetite preparation was the replacement of hydrogen ions with Fe(2+)and Fe(3+)ions on the sulfonic acid groups of the resin. In the second step, magnetite particle formation was induced by coprecipitating the iron ions with sodium hydroxide. The regeneration of the ion-exchange resin was also carried out by using sodium hydroxide. SEM images verified that relatively large magnetite crystal particles (diameter = 100-150 nm) were created. The ion-exchange effect of the prepared magnetic adsorbent was also confirmed by applying Cu2+, Ni2+, Pb(2+)and Cd(2+)ions in adsorption experiments.
引用
收藏
页码:1187 / 1195
页数:9
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