Composite sorbent based on Fe3O4 with Fe(N2H4)x Cly for the removal of Chromium (VI) from wastewater

被引：0

作者：

Ordinartsev, Denis P. ^{[1
]}

Pechishcheva, Nadezhda V. ^{[1
,2
]}

Estemirova, Svetlana Kh. ^{[1
]}

Kim, Angelina V. ^{[1
,2
]}

Sterkhov, Evgenii V. ^{[1
]}

Petrova, Sofia A. ^{[1
]}

Shilenko, Galina A. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Met, Ural Branch, 101,Amundsen St, Ekaterinburg 620016, Russia

[2] Ural Fed Univ, 19, Mira St, Ekaterinburg 620002, Russia

来源：

NANOSYSTEMS-PHYSICS CHEMISTRY MATHEMATICS | 2024年 / 15卷 / 04期

关键词：

Iron complex with hydrazine; magnetite sol; chromium adsorption; heavy metals; adsorption isotherms; HEAVY-METALS; FE3O4; NANOPARTICLES; ADSORPTION; PURIFICATION; MONTMORILLONITE; WASTEWATERS; HYDRAZINE; QUALITY; IONS;

D O I：

10.17586/2220-8054-2024-15-4-510-519

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The paper presents a methodology for the synthesis of iron complex with hydrazine hydrate Fe(N2H4)xCly. 2 H 4 ) x Cl y . The Fe(N2H4)xCly 2 H 4 ) x Cl y complex was investigated by X-ray phase analysis and scanning electron microscopy. Upon hydrolysis, the Fe(N2H4)xCly 2 H 4 ) x Cl y complex forms a composite sorbent, which is Fe3O4 3 O 4 in a shell of Fe(N2H4)xCly 2 H 4 ) x Cl y complex. The composite sorbent can be used to treat wastewater from Cr(VI) ions and is effective in the pH range of 2 to 12. Based on the adsorption and electrokinetic potential data, a conclusion about the nature of the terminal groups of the adsorbent was made, a scheme of the structure of its electrical double layer and the adsorption mechanism were proposed. Depending on the conditions, Cr(VI) can be adsorbed on the composite sorbent or reduced to Cr(III). The efficiency of the composite sorbent in the removal of Cr(VI) ions was tested on a sample of real wastewater.

引用

页码：510 / 519

页数：10

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