Binary oxide ceramics for enhanced phenols degradation under simulated Solar light
Само за регистроване кориснике
2018
Аутори
Carević, MilicaAbazović, Nadica
Savić, Tatjana D.
Novaković, Tatjana
Pjević, Dejan J.
Čomor, Mirjana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Solvothermal synthesis of ZrO2-TiO2 binary oxides and pure counterparts at 150 degrees C in water/isopropanol media is presented. Titanium (IV) isopropoxide and zirconium (IV) propoxide were used as precursors. XRD and TEM techniques were used for structural and morphological characterization of obtained samples. XPS spectra of mixed oxide samples were compared in order to correlate composition of samples with surface properties and presence of defects. Relative positions of defect states within band-gaps of semiconductors were estimated from UCPL spectra. UV-Vis DRS spectra revealed that both pure oxides experienced red shift of absorption thresholds compared to reference data. Photocatalytic activities of all samples were probed under simulated Solar light on three model compounds: phenol, 4-chlorophenol (4-CP) and 2, 4, 6-trichlorphenol (TCP). Pure TiO2 showed the highest photocatalytic activity in the case of phenol. However, pure ZrO2 and binary oxides showed higher photoactivity ...in degradation of 4-CP and TCP. The activity of wide band-gap semiconductors under simulated Solar light in photodegradation of phenol and its derivatives is most probably the consequence of formation of charge transfer complexes between pollutant molecules and semiconductors surface.
Кључне речи:
ceramics / optical properties / oxide materials / photoelectron spectroscopies / transmission electron microscopy / TEMИзвор:
Journal of the American Ceramic Society, 2018, 101, 4, 1420-1431Финансирање / пројекти:
- Утицај величине, облика и структуре наночестица на њихова својства и својства нанокомпозита (RS-172056)
DOI: 10.1111/jace.15324
ISSN: 0002-7820; 1551-2916
WoS: 000424095000005
Scopus: 2-s2.0-85033564100
Колекције
Институција/група
VinčaTY - JOUR AU - Carević, Milica AU - Abazović, Nadica AU - Savić, Tatjana D. AU - Novaković, Tatjana AU - Pjević, Dejan J. AU - Čomor, Mirjana PY - 2018 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1945 AB - Solvothermal synthesis of ZrO2-TiO2 binary oxides and pure counterparts at 150 degrees C in water/isopropanol media is presented. Titanium (IV) isopropoxide and zirconium (IV) propoxide were used as precursors. XRD and TEM techniques were used for structural and morphological characterization of obtained samples. XPS spectra of mixed oxide samples were compared in order to correlate composition of samples with surface properties and presence of defects. Relative positions of defect states within band-gaps of semiconductors were estimated from UCPL spectra. UV-Vis DRS spectra revealed that both pure oxides experienced red shift of absorption thresholds compared to reference data. Photocatalytic activities of all samples were probed under simulated Solar light on three model compounds: phenol, 4-chlorophenol (4-CP) and 2, 4, 6-trichlorphenol (TCP). Pure TiO2 showed the highest photocatalytic activity in the case of phenol. However, pure ZrO2 and binary oxides showed higher photoactivity in degradation of 4-CP and TCP. The activity of wide band-gap semiconductors under simulated Solar light in photodegradation of phenol and its derivatives is most probably the consequence of formation of charge transfer complexes between pollutant molecules and semiconductors surface. T2 - Journal of the American Ceramic Society T1 - Binary oxide ceramics for enhanced phenols degradation under simulated Solar light VL - 101 IS - 4 SP - 1420 EP - 1431 DO - 10.1111/jace.15324 ER -
@article{ author = "Carević, Milica and Abazović, Nadica and Savić, Tatjana D. and Novaković, Tatjana and Pjević, Dejan J. and Čomor, Mirjana", year = "2018", abstract = "Solvothermal synthesis of ZrO2-TiO2 binary oxides and pure counterparts at 150 degrees C in water/isopropanol media is presented. Titanium (IV) isopropoxide and zirconium (IV) propoxide were used as precursors. XRD and TEM techniques were used for structural and morphological characterization of obtained samples. XPS spectra of mixed oxide samples were compared in order to correlate composition of samples with surface properties and presence of defects. Relative positions of defect states within band-gaps of semiconductors were estimated from UCPL spectra. UV-Vis DRS spectra revealed that both pure oxides experienced red shift of absorption thresholds compared to reference data. Photocatalytic activities of all samples were probed under simulated Solar light on three model compounds: phenol, 4-chlorophenol (4-CP) and 2, 4, 6-trichlorphenol (TCP). Pure TiO2 showed the highest photocatalytic activity in the case of phenol. However, pure ZrO2 and binary oxides showed higher photoactivity in degradation of 4-CP and TCP. The activity of wide band-gap semiconductors under simulated Solar light in photodegradation of phenol and its derivatives is most probably the consequence of formation of charge transfer complexes between pollutant molecules and semiconductors surface.", journal = "Journal of the American Ceramic Society", title = "Binary oxide ceramics for enhanced phenols degradation under simulated Solar light", volume = "101", number = "4", pages = "1420-1431", doi = "10.1111/jace.15324" }
Carević, M., Abazović, N., Savić, T. D., Novaković, T., Pjević, D. J.,& Čomor, M.. (2018). Binary oxide ceramics for enhanced phenols degradation under simulated Solar light. in Journal of the American Ceramic Society, 101(4), 1420-1431. https://doi.org/10.1111/jace.15324
Carević M, Abazović N, Savić TD, Novaković T, Pjević DJ, Čomor M. Binary oxide ceramics for enhanced phenols degradation under simulated Solar light. in Journal of the American Ceramic Society. 2018;101(4):1420-1431. doi:10.1111/jace.15324 .
Carević, Milica, Abazović, Nadica, Savić, Tatjana D., Novaković, Tatjana, Pjević, Dejan J., Čomor, Mirjana, "Binary oxide ceramics for enhanced phenols degradation under simulated Solar light" in Journal of the American Ceramic Society, 101, no. 4 (2018):1420-1431, https://doi.org/10.1111/jace.15324 . .