Floating Photocatalyst Based on Poly(epsilon-caprolactone) Foam and TiO2 Nanoparticles for Removal of Textile Dyes
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2018
Authors
Marković, Darka
Milovanović, Stoja

Radovanović, Željko

Žižović, Irena

Šaponjić, Zoran

Radetić, Maja

Article (Published version)

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This study discusses a novel approach for fabrication of floating photocatalyst which can be efficiently exploited for photodegradation of dyes in aqueous solutions. A fabrication of the floating photocatalyst consisted of two steps: transformation of the poly(epsilon-caprolactone) beads (PCLb) into poly(epsilon-caprolactone) foam (PCLf) with porous structure in supercritical carbon-dioxide and subsequent loading of PCLf with TiO2 nanoparticles (NPs). Morphological characterization of the PCLf before and after TiO2 NPs loading was carried out by FESEM. The presence of titanium on the surface and inside the PCLf was detected by EDX. Photocatalytical activity of the floating photocatalyst was investigated in aqueous solution of textile dyes C.I. Acid Orange 7 (AO7) and C.I. Basic Yellow 28 (BY28) which were exposed to lamp that simulates the sun light. In addition to sustainable floatability for a long period of time, developed floating photocatalyst exhibited high rate of photodegradati...on since the complete discoloration of AO7 and BY28 solutions and photocatalysts alone occurred after 300 and 180 min of illumination, respectively. Its photocatalytic activity was preserved after three repeated photodegradation cycles with unchanged chemical structure that was confirmed by FTIR analysis.
Keywords:
Floating photocatalyst / Polycaprolactone / TiO2 nanoparticles / Dye photodegradation / Supercritical foamingSource:
Fibers and Polymers, 2018, 19, 6, 1219-1227Publisher:
- Korean Fiber Soc, Seoul
Funding / projects:
- Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites (RS-172056)
- Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-45020)
DOI: 10.1007/s12221-018-8148-5
ISSN: 1229-9197
WoS: 000437774000009
Scopus: 2-s2.0-85049563576
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Tehnološko-metalurški fakultetTY - JOUR AU - Marković, Darka AU - Milovanović, Stoja AU - Radovanović, Željko AU - Žižović, Irena AU - Šaponjić, Zoran AU - Radetić, Maja PY - 2018 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3861 AB - This study discusses a novel approach for fabrication of floating photocatalyst which can be efficiently exploited for photodegradation of dyes in aqueous solutions. A fabrication of the floating photocatalyst consisted of two steps: transformation of the poly(epsilon-caprolactone) beads (PCLb) into poly(epsilon-caprolactone) foam (PCLf) with porous structure in supercritical carbon-dioxide and subsequent loading of PCLf with TiO2 nanoparticles (NPs). Morphological characterization of the PCLf before and after TiO2 NPs loading was carried out by FESEM. The presence of titanium on the surface and inside the PCLf was detected by EDX. Photocatalytical activity of the floating photocatalyst was investigated in aqueous solution of textile dyes C.I. Acid Orange 7 (AO7) and C.I. Basic Yellow 28 (BY28) which were exposed to lamp that simulates the sun light. In addition to sustainable floatability for a long period of time, developed floating photocatalyst exhibited high rate of photodegradation since the complete discoloration of AO7 and BY28 solutions and photocatalysts alone occurred after 300 and 180 min of illumination, respectively. Its photocatalytic activity was preserved after three repeated photodegradation cycles with unchanged chemical structure that was confirmed by FTIR analysis. PB - Korean Fiber Soc, Seoul T2 - Fibers and Polymers T1 - Floating Photocatalyst Based on Poly(epsilon-caprolactone) Foam and TiO2 Nanoparticles for Removal of Textile Dyes EP - 1227 IS - 6 SP - 1219 VL - 19 DO - 10.1007/s12221-018-8148-5 ER -
@article{ author = "Marković, Darka and Milovanović, Stoja and Radovanović, Željko and Žižović, Irena and Šaponjić, Zoran and Radetić, Maja", year = "2018", abstract = "This study discusses a novel approach for fabrication of floating photocatalyst which can be efficiently exploited for photodegradation of dyes in aqueous solutions. A fabrication of the floating photocatalyst consisted of two steps: transformation of the poly(epsilon-caprolactone) beads (PCLb) into poly(epsilon-caprolactone) foam (PCLf) with porous structure in supercritical carbon-dioxide and subsequent loading of PCLf with TiO2 nanoparticles (NPs). Morphological characterization of the PCLf before and after TiO2 NPs loading was carried out by FESEM. The presence of titanium on the surface and inside the PCLf was detected by EDX. Photocatalytical activity of the floating photocatalyst was investigated in aqueous solution of textile dyes C.I. Acid Orange 7 (AO7) and C.I. Basic Yellow 28 (BY28) which were exposed to lamp that simulates the sun light. In addition to sustainable floatability for a long period of time, developed floating photocatalyst exhibited high rate of photodegradation since the complete discoloration of AO7 and BY28 solutions and photocatalysts alone occurred after 300 and 180 min of illumination, respectively. Its photocatalytic activity was preserved after three repeated photodegradation cycles with unchanged chemical structure that was confirmed by FTIR analysis.", publisher = "Korean Fiber Soc, Seoul", journal = "Fibers and Polymers", title = "Floating Photocatalyst Based on Poly(epsilon-caprolactone) Foam and TiO2 Nanoparticles for Removal of Textile Dyes", pages = "1227-1219", number = "6", volume = "19", doi = "10.1007/s12221-018-8148-5" }
Marković, D., Milovanović, S., Radovanović, Ž., Žižović, I., Šaponjić, Z.,& Radetić, M.. (2018). Floating Photocatalyst Based on Poly(epsilon-caprolactone) Foam and TiO2 Nanoparticles for Removal of Textile Dyes. in Fibers and Polymers Korean Fiber Soc, Seoul., 19(6), 1219-1227. https://doi.org/10.1007/s12221-018-8148-5
Marković D, Milovanović S, Radovanović Ž, Žižović I, Šaponjić Z, Radetić M. Floating Photocatalyst Based on Poly(epsilon-caprolactone) Foam and TiO2 Nanoparticles for Removal of Textile Dyes. in Fibers and Polymers. 2018;19(6):1219-1227. doi:10.1007/s12221-018-8148-5 .
Marković, Darka, Milovanović, Stoja, Radovanović, Željko, Žižović, Irena, Šaponjić, Zoran, Radetić, Maja, "Floating Photocatalyst Based on Poly(epsilon-caprolactone) Foam and TiO2 Nanoparticles for Removal of Textile Dyes" in Fibers and Polymers, 19, no. 6 (2018):1219-1227, https://doi.org/10.1007/s12221-018-8148-5 . .