New color changing sorption material for effective removal of heavy metals from wastewater

被引:0
|
作者
Kambarova, E. A. [1 ]
Bektenov, N. A. [2 ]
Bazarbaeva, K. Zh. [3 ]
Mazhibayev, A. K. [1 ]
Bolysbekova, S. M. [4 ]
Gavrilenko, M. A. [5 ]
机构
[1] Taraz Reg Univ, 60 Tole Bi St, Taraz 080000, Kazakhstan
[2] Kazakh Natl Pedag Univ, 13 Dostyk Ave, Alma Ata 050000, Kazakhstan
[3] Eurasian Natl Univ, 2 Satpaev St, Astana 010008, Kazakhstan
[4] Astana Int Univ, 8 Kabanbay Batyr Ave, Astana 010000, Kazakhstan
[5] Tomsk State Univ, 30 Lenin Ave, Tomsk 634050, Russia
来源
BULLETIN OF THE TOMSK POLYTECHNIC UNIVERSITY-GEO ASSETS ENGINEERING | 2024年 / 335卷 / 03期
关键词
Shanghai natural zeolite; sorption; Me(II) cations; polyethylene polyamine; epoxy resin; 1,2-pyridylazonaphthol; heavy metals; IONS; ADSORBENT; SENSORS; PD(II); LIGAND; CU(II); PROBE;
D O I
10.18799/24131830/2024/3/4446
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Relevance.The need to purify water resources from Me(II) cations. Obtaining effective and cheap sorbents is one of the priority areas for water purification for various purposes. Namely, the sorbents, allowing the detection and adsorbingheavy metal cations in drinking or tap water and, at the same time, systematic monitoring of water quality in the environment. Aim.Synthesis of sorption material for effective removal of Me(II) cations from wastewater, study of the main parameters of new sorption material. Objects.Shanghai natural zeolite and its forms modified with polyethylene polyamine, 1,2-pyridylazonaphthol and epoxy resin (ED-20). Methods.Spectrophotometry. Results.A sorbent is proposed based on a combination of a surface layer of polyethylene polyamine, 1,2-pyridylazonaphthol and ED-20 epoxy resin, which is then successfully immobilized on zeolite for adsorption of metal cations Me(II)) from water. The synthesized sorbent makes it possible to diagnose its own efficiency by color changing of the surface after sorption of Me(II) cations. Competing cations of alkali and alkaline earth metals (water hardness salts) do not interfere with the adsorption of Me(II) cations. The maximum sorption capacity was 220 mg/g, which is comparable to other common sorbents. The sorbent also demonstrated the possibility of reuse after 10-12 cycles of desorption and regeneration of the color-forming component 1,2-pyridylazonaphthol. Desorption was carried out using 0.20 M HCl, then the sorbent was ready for being used without significant loss of its characteristics after washing with water. Restoration of the ability to color change was achieved by treating the sorbent in a 10-3M aqueous solution of 1-(2-pyridylazo)-2-naphthol for 10 minutes.
引用
收藏
页码:40 / 49
页数:10
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