Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles
Samo za registrovane korisnike
2016
Autori
Vukoje, Ivana D.Kovač, Tijana
Džunuzović, Jasna
Džunuzović, Enis
Lončarević, Davor
Ahrenkiel, Scott Phillip
Nedeljković, Jovan
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The synthetic procedures for preparation of free-standing and attached to polymer support surface modified TiO2 nanoparticles (NPs) with absorption extended into the visible spectral region due to charge transfer complex formation were developed. The one-step synthesis of colloids consisting of surface-modified TiO2 NPs is based on the reaction between titanium(IV) isopropoxide (TTIP) and lauryl galatte in nonprotic organic solvents (tetrahydrofuran, xylol, chloroform). The poly(GMA-co-EGDMA) copolymer decorated with surface-modified TiO2 NPs was obtained in two steps. First, copolymer was functionalized with dopamine and then treated with TTIP in organic solvent at slightly elevated temperature. Thorough microstructural and optical characterization of free-standing and attached to polymer support surface-modified TiO2 NPs was performed involving transmission electron microscopy as well as absorption and reflection spectroscopy. Infrared spectroscopy was used to understand coordination... of ligands to surface Ti atoms. Photoredox chemistry of surface-modified TiO2 NPs attached to the polymer support was tested. Enhanced photooxidative ability of composite was demonstrated by degradation of organic dye crystal violet under visible light illumination, i.e., using photons with energy smaller than 2.75 eV. On the other hand, photocatalytic hydrogen production was used to demonstrate photoreduction ability of surface modified TiO2 NPs attached to the polymer support.
Izvor:
Journal of Physical Chemistry C, 2016, 120, 33, 18560-18569Izdavač:
- Amer Chemical Soc, Washington
Finansiranje / projekti:
- Materijali redukovane dimenzionalnosti za efikasnu apsorpciju svetlosti i konverziju energije (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
DOI: 10.1021/acs.jpcc.6b04293
ISSN: 1932-7447
WoS: 000382180000024
Scopus: 2-s2.0-84984639996
Kolekcije
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Vukoje, Ivana D. AU - Kovač, Tijana AU - Džunuzović, Jasna AU - Džunuzović, Enis AU - Lončarević, Davor AU - Ahrenkiel, Scott Phillip AU - Nedeljković, Jovan PY - 2016 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3453 AB - The synthetic procedures for preparation of free-standing and attached to polymer support surface modified TiO2 nanoparticles (NPs) with absorption extended into the visible spectral region due to charge transfer complex formation were developed. The one-step synthesis of colloids consisting of surface-modified TiO2 NPs is based on the reaction between titanium(IV) isopropoxide (TTIP) and lauryl galatte in nonprotic organic solvents (tetrahydrofuran, xylol, chloroform). The poly(GMA-co-EGDMA) copolymer decorated with surface-modified TiO2 NPs was obtained in two steps. First, copolymer was functionalized with dopamine and then treated with TTIP in organic solvent at slightly elevated temperature. Thorough microstructural and optical characterization of free-standing and attached to polymer support surface-modified TiO2 NPs was performed involving transmission electron microscopy as well as absorption and reflection spectroscopy. Infrared spectroscopy was used to understand coordination of ligands to surface Ti atoms. Photoredox chemistry of surface-modified TiO2 NPs attached to the polymer support was tested. Enhanced photooxidative ability of composite was demonstrated by degradation of organic dye crystal violet under visible light illumination, i.e., using photons with energy smaller than 2.75 eV. On the other hand, photocatalytic hydrogen production was used to demonstrate photoreduction ability of surface modified TiO2 NPs attached to the polymer support. PB - Amer Chemical Soc, Washington T2 - Journal of Physical Chemistry C T1 - Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles EP - 18569 IS - 33 SP - 18560 VL - 120 DO - 10.1021/acs.jpcc.6b04293 ER -
@article{ author = "Vukoje, Ivana D. and Kovač, Tijana and Džunuzović, Jasna and Džunuzović, Enis and Lončarević, Davor and Ahrenkiel, Scott Phillip and Nedeljković, Jovan", year = "2016", abstract = "The synthetic procedures for preparation of free-standing and attached to polymer support surface modified TiO2 nanoparticles (NPs) with absorption extended into the visible spectral region due to charge transfer complex formation were developed. The one-step synthesis of colloids consisting of surface-modified TiO2 NPs is based on the reaction between titanium(IV) isopropoxide (TTIP) and lauryl galatte in nonprotic organic solvents (tetrahydrofuran, xylol, chloroform). The poly(GMA-co-EGDMA) copolymer decorated with surface-modified TiO2 NPs was obtained in two steps. First, copolymer was functionalized with dopamine and then treated with TTIP in organic solvent at slightly elevated temperature. Thorough microstructural and optical characterization of free-standing and attached to polymer support surface-modified TiO2 NPs was performed involving transmission electron microscopy as well as absorption and reflection spectroscopy. Infrared spectroscopy was used to understand coordination of ligands to surface Ti atoms. Photoredox chemistry of surface-modified TiO2 NPs attached to the polymer support was tested. Enhanced photooxidative ability of composite was demonstrated by degradation of organic dye crystal violet under visible light illumination, i.e., using photons with energy smaller than 2.75 eV. On the other hand, photocatalytic hydrogen production was used to demonstrate photoreduction ability of surface modified TiO2 NPs attached to the polymer support.", publisher = "Amer Chemical Soc, Washington", journal = "Journal of Physical Chemistry C", title = "Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles", pages = "18569-18560", number = "33", volume = "120", doi = "10.1021/acs.jpcc.6b04293" }
Vukoje, I. D., Kovač, T., Džunuzović, J., Džunuzović, E., Lončarević, D., Ahrenkiel, S. P.,& Nedeljković, J.. (2016). Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles. in Journal of Physical Chemistry C Amer Chemical Soc, Washington., 120(33), 18560-18569. https://doi.org/10.1021/acs.jpcc.6b04293
Vukoje ID, Kovač T, Džunuzović J, Džunuzović E, Lončarević D, Ahrenkiel SP, Nedeljković J. Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles. in Journal of Physical Chemistry C. 2016;120(33):18560-18569. doi:10.1021/acs.jpcc.6b04293 .
Vukoje, Ivana D., Kovač, Tijana, Džunuzović, Jasna, Džunuzović, Enis, Lončarević, Davor, Ahrenkiel, Scott Phillip, Nedeljković, Jovan, "Photocatalytic Ability of Visible-Light-Responsive TiO2 Nanoparticles" in Journal of Physical Chemistry C, 120, no. 33 (2016):18560-18569, https://doi.org/10.1021/acs.jpcc.6b04293 . .