The Removal of Strontium Ions from an Aqueous Solution Using Na-A Zeolites Synthesized from Kaolin-Reference-Cited by-同舟云学术

The Removal of Strontium Ions from an Aqueous Solution Using Na-A Zeolites Synthesized from Kaolin

Published:2024-01-25 Issue:3 Volume:17 Page:575
ISSN:1996-1944
Container-title:Materials
language:en
Short-container-title:Materials

Author:

Lim Woo-Ri¹,Lee Chang-Han²^ORCID,Lee Chung-Mo³^ORCID

Affiliation:

1. KNU LAMP Research Center, KNU Institute of Basic Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea

2. Department of Environmental Administration, Catholic University of Pusan, Busan 46252, Republic of Korea

3. Department of Geological Sciences and Institute for Future Earth, Pusan National University, Busan 46241, Republic of Korea

Abstract

Sr2+ ions in an aqueous solution were removed using Na-A zeolites synthesized from kaolin, a natural mineral. Na-A zeolites with high crystallinity were synthesized using NaOH/kaolin mass ratios of 0.6 (ZK06) and 0.9 (ZK09). The adsorption reached equilibrium within 120 min. The adsorption data obtained from experiments for Sr2+ using ZK06 and ZK09 were appropriately analyzed with pseudo-second-order kinetic and Langmuir isotherm models. Comparing the maximum adsorption capacities (qm) of ZK06 and ZK09 for Sr2+, the highest values were obtained at 1.90 and 2.42 mmol/g, respectively. Consequently, the Na-A zeolites synthesized from kaolin can be evaluated as adsorbents with high adsorption capacities for the removal of Sr2+, proportional to the degree of their crystallinity.

Funder

Ministry of Education

Publisher

MDPI AG

Link

https://www.mdpi.com/1996-1944/17/3/575/pdf

Reference30 articles.

1. Review of Russian language studies on radionuclide behaviour in agricultural animals: Biological half-lives;Fesenko;J. Environ. Radioact.,2015

2. Why nuclear energy is sustainable and has to be part of the energy mix;Brook;Sustain. Mater. Technol.,2014

3. Assessment of synthetic zeolite Na A–X as sorbing barrier for strontium in a radioactive disposal facility;Rahman;Chem. Eng. J.,2010

4. Induction of hematopoietic neoplasms in miniature swine by chronic feeding of strontium-90;Howard;JNCI,1970

5. Assessment of a sodium nonatitanate and pharmacosiderite-type ion exchangers for strontium and cesium removal from DOE waste simulants;Behrens;Environ. Sci. Technol.,1998