Development of advanced floating poly(lactic acid)-based materials for colored wastewater treatment
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2021
Authors
Milovanović, StojaMarković, Darka
Pantic, Milica
Pavlovic, Stefan M.
Knapczyk-Korczak, Joanna
Stachewicz, Urszula
Novak, Zoran
Article (Published version)
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The release of industrial wastewater into the ecosystem prompted our research on the development of an efficient and biodegradable material that can be used for wastewater treatment. We optimized preparation of porous material from poly(lactic acid) (PLA) by variation in solvents and drying methods (air-drying vs. supercritical CO2-drying). In addition, we optimized the method of TiO2 nanoparticles immobilization (in situ vs. ex situ) onto porous PLA. The material properties and functionality were verified by SEM, water displacement, gas adsorption desorption, Hg-intrusion porosimetry, dye degradation, FTIR, TGA/DSC, and water contact angle analysis. We showed that the morphology of PLA material could be controlled by variation in process parameters resulting in porosity from 43% to 73%. The prepared material sustained floatability for longer than 4 weeks and provided complete discoloration of dye C.I. Acid Orange 7 after 240 min of illumination. The high photocatalytic activity was pr...eserved within three repeated cycles.
Keywords:
Aerogel / Floating photocatalyst / PLA / Supercritical CO2 / TiO2 / XerogelSource:
Journal of Supercritical Fluids, 2021, 177Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200135)
DOI: 10.1016/j.supflu.2021.105328
ISSN: 0896-8446
WoS: 000688290300007
Scopus: 2-s2.0-85109752492
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Tehnološko-metalurški fakultetTY - JOUR AU - Milovanović, Stoja AU - Marković, Darka AU - Pantic, Milica AU - Pavlovic, Stefan M. AU - Knapczyk-Korczak, Joanna AU - Stachewicz, Urszula AU - Novak, Zoran PY - 2021 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4786 AB - The release of industrial wastewater into the ecosystem prompted our research on the development of an efficient and biodegradable material that can be used for wastewater treatment. We optimized preparation of porous material from poly(lactic acid) (PLA) by variation in solvents and drying methods (air-drying vs. supercritical CO2-drying). In addition, we optimized the method of TiO2 nanoparticles immobilization (in situ vs. ex situ) onto porous PLA. The material properties and functionality were verified by SEM, water displacement, gas adsorption desorption, Hg-intrusion porosimetry, dye degradation, FTIR, TGA/DSC, and water contact angle analysis. We showed that the morphology of PLA material could be controlled by variation in process parameters resulting in porosity from 43% to 73%. The prepared material sustained floatability for longer than 4 weeks and provided complete discoloration of dye C.I. Acid Orange 7 after 240 min of illumination. The high photocatalytic activity was preserved within three repeated cycles. T2 - Journal of Supercritical Fluids T1 - Development of advanced floating poly(lactic acid)-based materials for colored wastewater treatment VL - 177 DO - 10.1016/j.supflu.2021.105328 ER -
@article{ author = "Milovanović, Stoja and Marković, Darka and Pantic, Milica and Pavlovic, Stefan M. and Knapczyk-Korczak, Joanna and Stachewicz, Urszula and Novak, Zoran", year = "2021", abstract = "The release of industrial wastewater into the ecosystem prompted our research on the development of an efficient and biodegradable material that can be used for wastewater treatment. We optimized preparation of porous material from poly(lactic acid) (PLA) by variation in solvents and drying methods (air-drying vs. supercritical CO2-drying). In addition, we optimized the method of TiO2 nanoparticles immobilization (in situ vs. ex situ) onto porous PLA. The material properties and functionality were verified by SEM, water displacement, gas adsorption desorption, Hg-intrusion porosimetry, dye degradation, FTIR, TGA/DSC, and water contact angle analysis. We showed that the morphology of PLA material could be controlled by variation in process parameters resulting in porosity from 43% to 73%. The prepared material sustained floatability for longer than 4 weeks and provided complete discoloration of dye C.I. Acid Orange 7 after 240 min of illumination. The high photocatalytic activity was preserved within three repeated cycles.", journal = "Journal of Supercritical Fluids", title = "Development of advanced floating poly(lactic acid)-based materials for colored wastewater treatment", volume = "177", doi = "10.1016/j.supflu.2021.105328" }
Milovanović, S., Marković, D., Pantic, M., Pavlovic, S. M., Knapczyk-Korczak, J., Stachewicz, U.,& Novak, Z.. (2021). Development of advanced floating poly(lactic acid)-based materials for colored wastewater treatment. in Journal of Supercritical Fluids, 177. https://doi.org/10.1016/j.supflu.2021.105328
Milovanović S, Marković D, Pantic M, Pavlovic SM, Knapczyk-Korczak J, Stachewicz U, Novak Z. Development of advanced floating poly(lactic acid)-based materials for colored wastewater treatment. in Journal of Supercritical Fluids. 2021;177. doi:10.1016/j.supflu.2021.105328 .
Milovanović, Stoja, Marković, Darka, Pantic, Milica, Pavlovic, Stefan M., Knapczyk-Korczak, Joanna, Stachewicz, Urszula, Novak, Zoran, "Development of advanced floating poly(lactic acid)-based materials for colored wastewater treatment" in Journal of Supercritical Fluids, 177 (2021), https://doi.org/10.1016/j.supflu.2021.105328 . .