Properties of the Clinoptilolite: Characterization and Adsorption Tests with Methylene Blue
Open accessAbstract
In this work, the physico-chemical properties of clinoptilolite (a natural zeolite) were analyzed by complementary techniques including X-ray diffractogram, N2 physisorption at -196 °C, FESEM and EDX analysis. Zeolite is classified as a mesoporous material (cavities≈ 15 nm) with a specific surface area of 36 m2 g-1 . The porous size distribution shows a peak in the mesoporous region. This zeolite is characterized by anhedral particles assembled on top of one another: this is a characteristic of material growth by magma with impurities (Mordenite) in the pores. The presence of impurities was evidenced with EDX analysis (Fe=0.68% at, Mg=0.47% at.). Then, the adsorption tests were performed with two solutions of methylene blue (MB) at different concentrations (namely 250 and 500 mgL-1). The results showed that the adsorption of the dye is more efficient in the case of250 mg L-1 concentration, with an abatement of 96% after 2h. The abatement corresponding to the higher concentration of MB is about 92.5% after 2h. The kinetic order of MB on clinoptilolite was calculated. The results suggest a second order reaction. In the future, clinoptilolite will be studied for the abatement of metal ion solutions in order to be used as a molecular sieve in the waste water treatment field.
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The elemental composition of the England clinoptilolite compared with a Greek clinoptilolite from previous work shows good congruence, with small variations possibly due to different geographical areas.
“These values were compared with those of a clinoptilolite from a deposit in Greece obtained in previous work (Dosa et al. 2018), and a good congruence was obtained. The small variations in percentage may be ascribed to the different geographical areas in which the deposit is located.”
From Fundamental properties and sustainable applications of the natural zeolite clinoptilolite (2024) · cites this paper as Dosa et al. 2018
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Fundamental properties and sustainable applications of the natural zeolite clinoptilolite
Grifasi, N., Ziantoni, B., Fino, D., & Piumetti, M. (2024) · Environmental Science and Pollution Research · doi:10.1007/s11356-024-33656-5 · Cited by 88 · see citing works
“In literature, it is possible to find different works concerning the use of natural clinoptilolite for the removal of dyes (Amin et al. 2023; Dosa et al. 2018).”
Self-citation
- Authors
- Dosa, M., Piumetti, M., Department of Applied Science and Technology, P. D. T., Bensaid, S., Russo, N., Baglieri, O., Miglietta, F., & Fino, D.
- ORCID
- Venue
- Journal of Advanced Catalysis Science and Technology
- Publisher
- Cosmos Scholars Publishing House
- Published
- 2018-03-30
- Volume
- 5
- Issue
- 1
- Pages
- 1-10
- ISSN
- 2408-9834 (ISSN-L)
- OpenAlex
- W2802574665
- Cited by
- 14
- References
- 0
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 5 · 2023: 1 · 2022: 1 · 2021: 3 · 2019: 1
- FWCI
- 0.36
- Type
- journal article
- Language
- en
- Open access
- Licence
- cc-by-nc
- Locations
- Journal of Advanced Catalysis Science and Technology (publishedVersion)
- PORTO@Iris (submittedVersion, cc-by-nc)
- Funders
- Politecnico di Torino
- Topics
- Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Physical Sciences › Materials Science › Biomaterials › Clay minerals and soil interactions
- Keywords
- clinoptilolite, zeolite characterization, methylene blue adsorption, dye adsorption, adsorbent properties
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