Zirconium dioxide nanopowders with incorporated Si4+ions asefficient photocatalyst for degradation of trichlorophenol usingsimulated solar light
Abstract
We present a hydrothermal method for synthesis of zirconia nanopowders: pure and with incorporatedSi4+ions. Zirconyl chloride and tetraethyl orthosilicate were used as precursors. As prepared powderswere annealed at 600◦C and characterized using structural (XRD), morphological (SEM and TEM) andoptical techniques (UV/vis DR, FTIR and photoluminescence spectroscopy). Their textural properties(BET method) and photocatalytic activity toward degradation of model compounds (tricholophenol andRhodamine B) using simmulated solar light were obtained. We showed that by using hydrothermal syn-thesis method pure monoclinic ZrO2highly crystalline powder can be obtained. Incorporation of Si4+ionsinduced stabilization of tetragonal crystalline phase at room temperature and decreasing of particle sizes.Incorporation of Si4+ions in zirconia matrix also resulted in increase of specific area of nanopowders. FTIRmeasurements were used as proof for existence of Zr O Si bond. Effective band gap of zirconia ...pow-ders was reduced from 5 (pure ZrO2) to 3.8 eV for samples with Si4+ions. All zirconia powders showedsignificant photocatalytic activity regarding degradation of triclorophenol and no activity regarding RB(Rhodamine B dye). Photocatalytic activity of zirconia was increased by incorporation of Si ions in thehost matrix. The source of this observation is discussed correlating all obtained properties of pure andSi-incorporated nanopowders. Optimization of synthesis parameters and composition of zirconia sam-ples obviously can lead to their photocatalytic activity comparable to Degussa TiO2powder, famous andcommercial photocatalyst.
Keywords:
Zirconia / Triclorophenol-TCP / Photocatalysis / Surface modification / Super oxide radicalsSource:
Applied Catalysis B: Environmental, 2016, 195, 112-120Publisher:
- Elsevier
Funding / projects:
- Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites (RS-MESTD-Basic Research (BR or ON)-172056)
DOI: 10.1016/j.apcatb.2016.05.005
ISSN: 0926-3373
WoS: 000378187100012
Scopus: 2-s2.0-84968830370
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Carević, M. V. AU - Abazović, Nadica AU - Novaković, T. B. AU - Pavlović, Vladimir B. AU - Čomor, Mirjana PY - 2016 UR - https://dais.sanu.ac.rs/123456789/15963 AB - We present a hydrothermal method for synthesis of zirconia nanopowders: pure and with incorporatedSi4+ions. Zirconyl chloride and tetraethyl orthosilicate were used as precursors. As prepared powderswere annealed at 600◦C and characterized using structural (XRD), morphological (SEM and TEM) andoptical techniques (UV/vis DR, FTIR and photoluminescence spectroscopy). Their textural properties(BET method) and photocatalytic activity toward degradation of model compounds (tricholophenol andRhodamine B) using simmulated solar light were obtained. We showed that by using hydrothermal syn-thesis method pure monoclinic ZrO2highly crystalline powder can be obtained. Incorporation of Si4+ionsinduced stabilization of tetragonal crystalline phase at room temperature and decreasing of particle sizes.Incorporation of Si4+ions in zirconia matrix also resulted in increase of specific area of nanopowders. FTIRmeasurements were used as proof for existence of Zr O Si bond. Effective band gap of zirconia pow-ders was reduced from 5 (pure ZrO2) to 3.8 eV for samples with Si4+ions. All zirconia powders showedsignificant photocatalytic activity regarding degradation of triclorophenol and no activity regarding RB(Rhodamine B dye). Photocatalytic activity of zirconia was increased by incorporation of Si ions in thehost matrix. The source of this observation is discussed correlating all obtained properties of pure andSi-incorporated nanopowders. Optimization of synthesis parameters and composition of zirconia sam-ples obviously can lead to their photocatalytic activity comparable to Degussa TiO2powder, famous andcommercial photocatalyst. PB - Elsevier T2 - Applied Catalysis B: Environmental T1 - Zirconium dioxide nanopowders with incorporated Si4+ions asefficient photocatalyst for degradation of trichlorophenol usingsimulated solar light SP - 112 EP - 120 VL - 195 DO - 10.1016/j.apcatb.2016.05.005 UR - https://hdl.handle.net/21.15107/rcub_dais_15963 ER -
@article{ author = "Carević, M. V. and Abazović, Nadica and Novaković, T. B. and Pavlović, Vladimir B. and Čomor, Mirjana", year = "2016", abstract = "We present a hydrothermal method for synthesis of zirconia nanopowders: pure and with incorporatedSi4+ions. Zirconyl chloride and tetraethyl orthosilicate were used as precursors. As prepared powderswere annealed at 600◦C and characterized using structural (XRD), morphological (SEM and TEM) andoptical techniques (UV/vis DR, FTIR and photoluminescence spectroscopy). Their textural properties(BET method) and photocatalytic activity toward degradation of model compounds (tricholophenol andRhodamine B) using simmulated solar light were obtained. We showed that by using hydrothermal syn-thesis method pure monoclinic ZrO2highly crystalline powder can be obtained. Incorporation of Si4+ionsinduced stabilization of tetragonal crystalline phase at room temperature and decreasing of particle sizes.Incorporation of Si4+ions in zirconia matrix also resulted in increase of specific area of nanopowders. FTIRmeasurements were used as proof for existence of Zr O Si bond. Effective band gap of zirconia pow-ders was reduced from 5 (pure ZrO2) to 3.8 eV for samples with Si4+ions. All zirconia powders showedsignificant photocatalytic activity regarding degradation of triclorophenol and no activity regarding RB(Rhodamine B dye). Photocatalytic activity of zirconia was increased by incorporation of Si ions in thehost matrix. The source of this observation is discussed correlating all obtained properties of pure andSi-incorporated nanopowders. Optimization of synthesis parameters and composition of zirconia sam-ples obviously can lead to their photocatalytic activity comparable to Degussa TiO2powder, famous andcommercial photocatalyst.", publisher = "Elsevier", journal = "Applied Catalysis B: Environmental", title = "Zirconium dioxide nanopowders with incorporated Si4+ions asefficient photocatalyst for degradation of trichlorophenol usingsimulated solar light", pages = "112-120", volume = "195", doi = "10.1016/j.apcatb.2016.05.005", url = "https://hdl.handle.net/21.15107/rcub_dais_15963" }
Carević, M. V., Abazović, N., Novaković, T. B., Pavlović, V. B.,& Čomor, M.. (2016). Zirconium dioxide nanopowders with incorporated Si4+ions asefficient photocatalyst for degradation of trichlorophenol usingsimulated solar light. in Applied Catalysis B: Environmental Elsevier., 195, 112-120. https://doi.org/10.1016/j.apcatb.2016.05.005 https://hdl.handle.net/21.15107/rcub_dais_15963
Carević MV, Abazović N, Novaković TB, Pavlović VB, Čomor M. Zirconium dioxide nanopowders with incorporated Si4+ions asefficient photocatalyst for degradation of trichlorophenol usingsimulated solar light. in Applied Catalysis B: Environmental. 2016;195:112-120. doi:10.1016/j.apcatb.2016.05.005 https://hdl.handle.net/21.15107/rcub_dais_15963 .
Carević, M. V., Abazović, Nadica, Novaković, T. B., Pavlović, Vladimir B., Čomor, Mirjana, "Zirconium dioxide nanopowders with incorporated Si4+ions asefficient photocatalyst for degradation of trichlorophenol usingsimulated solar light" in Applied Catalysis B: Environmental, 195 (2016):112-120, https://doi.org/10.1016/j.apcatb.2016.05.005 ., https://hdl.handle.net/21.15107/rcub_dais_15963 .