首页|The use of H-form clinoptilolite to preconcentrate trace amounts of Nd(III) from aqueous solution under dynamic conditions

The use of H-form clinoptilolite to preconcentrate trace amounts of Nd(III) from aqueous solution under dynamic conditions

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  • NSTL
  • Elsevier
Rare earth elements (REE) are vital in the industry, particularly in the manufacturing of high-tech products. REE are emitted in enormous amounts into the environment as a result of their increased use in industry. The sorption technique is one of the most efficient ways to extract rare earth elements in low quantities. The results of a dynamic study of the sorption capabilities of the H-form of Transcarpathian clinoptilolite towards Nd(III) are presented in this work. X-ray diffraction, FT-IR, zeta potential analysis, and potentiometric titration were used to analyze the sorbent. The breakthrough capacity of H-clinoptilolite toward Nd(III) was 3.1 mg g-1 under ideal conditions (pH = 7.5, sorbent thermal treatment temperature: t = 150 degrees C). The desorption efficiency of Nd(III) has been investigated using acids and different mineral salt solutions. The optimum desorbing agent appeared to be acidified (pH 4) 1 M KNO3 solutions. A method for preconcentrating trace amounts of Nd(III) using acid-modified Transcarpathian clinoptilolite in a solid-phase extraction mode is proposed, followed by spectrophotometric measurement of this rare earth element.

H-clinoptiloliteSorptionSolid-phase extractionNeodymium( CYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN ICYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN ICYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN I)RARE-EARTH-ELEMENTSSOLID-PHASE EXTRACTIONENVIRONMENTAL-SAMPLESWATER SAMPLESADSORPTIONSEPARATIONSPECTROSCOPYLANTHANIDESSPECIATIONMECHANISM

Slota, Emilia、Vasylechko, Volodymyr、Patsay, Ihor、Golebiowski, Adrian、Sprynskyy, Myroslav、Puziy, Alexander、Buszewski, Boguslaw、Poddubnaya, Olga

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Ivan Franko Natl Univ Lviv

Nicolaus Copernicus Univ Torun

Natl Aviat Univ

2022

10.1016/j.micromeso.2022.111739

Microporous and mesoporous materials

Microporous and mesoporous materials

EISCI
ISSN：1387-1811
年,卷(期)：2022.333
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