Fabrication of nanocomposite zeolite granules for cadmium stabilization in contaminated soils

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F25%3A00637573" target="_blank" >RIV/67985831:_____/25:00637573 - isvavai.cz</a>

Result on the web

<a href="https://www.tandfonline.com/doi/full/10.1080/26395940.2025.2522282" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/26395940.2025.2522282</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/26395940.2025.2522282" target="_blank" >10.1080/26395940.2025.2522282</a>

Result language

angličtina

Original language name

Fabrication of nanocomposite zeolite granules for cadmium stabilization in contaminated soils

Original language description

Cadmium contamination of soil poses significant environmental and public health risks. Among the techniques used for remediation, the chemical stabilization of heavy metals using mineral amendments shows promise. Composite zeolite granules were synthesized through the in situ formation of a manganese dioxide phase onto the surface of natural zeolite granules (1–2 mm). Scanning electron microscopy and X-ray diffraction analyses confirmed the formation of the MnO2/sub. phase, which was identified as c-disordered hexagonal birnessite. The adsorption of cadmium onto natural and composite zeolite samples was investigated using two experimental setups. The first setup involved studies in a single-component cadmium solution, while the second setup used a multicomponent ‘soil solution’ prepared by equilibrating Cd-contaminated soil with water for one month. Batch adsorption experiments revealed that the adsorption of both materials could be best described by a pseudo-second order kinetic model. The maximum Cd adsorption capacities, as determined by the Langmuir model, were found to be 12.96 mg/g for natural zeolite and 16.09 mg/g for composite zeolite. In a multicomponent ‘soil solution’ with elevated concentrations of Cd, Pb, and Zn (0.07, 0.04, and 3.67 mg/L, respectively), the composite zeolite granules demonstrated superior Cd adsorption efficiency compared to the natural zeolite (100% and 43%, respectively). Furthermore, both materials showed high zinc adsorption efficiencies (~98%). These results highlight the potential of composite zeolite granules as an effective mineral amendment for the stabilization of heavy metals in contaminated soils.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20701 - Environmental and geological engineering, geotechnics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental Pollutants and Bioavailability

ISSN

2639-5932

e-ISSN

2639-5940

Volume of the periodical

37

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

20

Pages from-to

2522282

UT code for WoS article

001518195600001

EID of the result in the Scopus database

2-s2.0-105009476261