The present study focuses on clinoptilolite (CLI)-rich natural zeolitic tuffs and their photocatalytic activity in the degradation of cationic organic dyes. CLI from different regions was tested in the photocatalytic degradation of methylene blue (MB) as a model cationic dye. The photocatalytic tests were performed at room temperature and atmospheric pressure under visible light irradiation. For all the CLI samples, the highest activity was observed at pH = 6. Total MB degradation varied between 70 and 91% (C0 = 10 mg dm–3, 0.2 g dm–3 of photocatalyst, during 300 min). It is suggested that the presence of Fe species in the studied tuffs is responsible for the photocatalytic activity. The activity increases linearly with the Fe content in the tuffs. The MB photodegradation follows the Langmuir–Hinshelwood kinetic model. The recyclability tests showed good stability and efficiency of the photocatalyst. The degradation rate decreased from 91 to 69% during three reaction cycles, indicating... a promising potential of natural zeolites in the treatment of textile industry wastewater.
TY - JOUR
AU - Pavlović, Jelena
AU - Šuligoj, Andraž
AU - Opresnik, Mojca
AU - Tušar-Novak, Nataša
AU - Zabukovec-Logar, Nataša
AU - Rajić, Nevenka
PY - 2022
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5051
AB - The present study focuses on clinoptilolite (CLI)-rich natural zeolitic tuffs and their photocatalytic activity in the degradation of cationic organic dyes. CLI from different regions was tested in the photocatalytic degradation of methylene blue (MB) as a model cationic dye. The photocatalytic tests were performed at room temperature and atmospheric pressure under visible light irradiation. For all the CLI samples, the highest activity was observed at pH = 6. Total MB degradation varied between 70 and 91% (C0 = 10 mg dm–3, 0.2 g dm–3 of photocatalyst, during 300 min). It is suggested that the presence of Fe species in the studied tuffs is responsible for the photocatalytic activity. The activity increases linearly with the Fe content in the tuffs. The MB photodegradation follows the Langmuir–Hinshelwood kinetic model. The recyclability tests showed good stability and efficiency of the photocatalyst. The degradation rate decreased from 91 to 69% during three reaction cycles, indicating a promising potential of natural zeolites in the treatment of textile industry wastewater.
PB - MDPI
T2 - Catalysts
T1 - Studies of Clinoptilolite-Rich Zeolitic Tuffs from Different Regions and Their Activity in Photodegradation of Methylene Blue
IS - 2
SP - 224
VL - 12
DO - https://doi.org/10.3390/catal12020224
ER -
@article{
author = "Pavlović, Jelena and Šuligoj, Andraž and Opresnik, Mojca and Tušar-Novak, Nataša and Zabukovec-Logar, Nataša and Rajić, Nevenka",
year = "2022",
abstract = "The present study focuses on clinoptilolite (CLI)-rich natural zeolitic tuffs and their photocatalytic activity in the degradation of cationic organic dyes. CLI from different regions was tested in the photocatalytic degradation of methylene blue (MB) as a model cationic dye. The photocatalytic tests were performed at room temperature and atmospheric pressure under visible light irradiation. For all the CLI samples, the highest activity was observed at pH = 6. Total MB degradation varied between 70 and 91% (C0 = 10 mg dm–3, 0.2 g dm–3 of photocatalyst, during 300 min). It is suggested that the presence of Fe species in the studied tuffs is responsible for the photocatalytic activity. The activity increases linearly with the Fe content in the tuffs. The MB photodegradation follows the Langmuir–Hinshelwood kinetic model. The recyclability tests showed good stability and efficiency of the photocatalyst. The degradation rate decreased from 91 to 69% during three reaction cycles, indicating a promising potential of natural zeolites in the treatment of textile industry wastewater.",
publisher = "MDPI",
journal = "Catalysts",
title = "Studies of Clinoptilolite-Rich Zeolitic Tuffs from Different Regions and Their Activity in Photodegradation of Methylene Blue",
number = "2",
pages = "224",
volume = "12",
doi = "https://doi.org/10.3390/catal12020224"
}
Pavlović, J., Šuligoj, A., Opresnik, M., Tušar-Novak, N., Zabukovec-Logar, N.,& Rajić, N.. (2022). Studies of Clinoptilolite-Rich Zeolitic Tuffs from Different Regions and Their Activity in Photodegradation of Methylene Blue. in Catalysts
MDPI., 12(2), 224.
https://doi.org/https://doi.org/10.3390/catal12020224
Pavlović J, Šuligoj A, Opresnik M, Tušar-Novak N, Zabukovec-Logar N, Rajić N. Studies of Clinoptilolite-Rich Zeolitic Tuffs from Different Regions and Their Activity in Photodegradation of Methylene Blue. in Catalysts. 2022;12(2):224.
doi:https://doi.org/10.3390/catal12020224 .
Pavlović, Jelena, Šuligoj, Andraž, Opresnik, Mojca, Tušar-Novak, Nataša, Zabukovec-Logar, Nataša, Rajić, Nevenka, "Studies of Clinoptilolite-Rich Zeolitic Tuffs from Different Regions and Their Activity in Photodegradation of Methylene Blue" in Catalysts, 12, no. 2 (2022):224,
https://doi.org/https://doi.org/10.3390/catal12020224 . .
