Synthesis of mesoporous nanocrystalline titania powders by nonhydrolitic sol-gel method
Authorized Users Only
2009
Authors
Tanasković, N.Radovanović, Željko
Đokić, Veljko
Krstić, Jugoslav
Drmanić, Saša
Janaćković, Đorđe
Petrović, Rada
Article (Published version)
Metadata
Show full item recordAbstract
Mesoporous titania with well-crystallized anatase phase was synthesized by nonhydrolytic sol-gel process combined with solvothermal treatment. Titanium-isopropoxide, titanium-tetrachloride, and carbon-tetrachloride were used for synthesis under nitrogen atmosphere in a glove box. The obtained mixture was heated in an autoclave at 140 degrees C for 3 h and 30 h. XRD analysis showed that dry gels contained anatase phase with low crystallinity, while powders obtained by calcination of dry gels at 500 degrees C for 3 h consisted of pure anatase with high crystallinity. SEM analysis of dried gels and powders shows agglomerates of spherical particles of the size similar to 300 nm. The TEM micrographs confirmed the nanoscale size of the titania powders, with the primary particle size of about 20 nm. Titania powders exhibit maximum pore diameter of 13.2 nm and 9.5 nm for gelation time 3 h and 30 h, respectively. The photocatalytic activity of such synthesized titania is superior to that of com...mercial photocatalyst Degussa P-25.
Keywords:
Nonhydrolitic sol-gel / Titania / Anatase / Mesoporosity / Photocatalytic activitySource:
Superlattices and Microstructures, 2009, 46, 1-2, 217-222Publisher:
- Academic Press Ltd- Elsevier Science Ltd, London
Funding / projects:
- Sinteza, struktura, svojstva i primena funkcionalnih nanostrukturnih keramičkih i biokeramičkih materijala (RS-142070)
DOI: 10.1016/j.spmi.2008.12.028
ISSN: 0749-6036
WoS: 000267444900038
Scopus: 2-s2.0-67349268769
Collections
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Tanasković, N. AU - Radovanović, Željko AU - Đokić, Veljko AU - Krstić, Jugoslav AU - Drmanić, Saša AU - Janaćković, Đorđe AU - Petrović, Rada PY - 2009 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1510 AB - Mesoporous titania with well-crystallized anatase phase was synthesized by nonhydrolytic sol-gel process combined with solvothermal treatment. Titanium-isopropoxide, titanium-tetrachloride, and carbon-tetrachloride were used for synthesis under nitrogen atmosphere in a glove box. The obtained mixture was heated in an autoclave at 140 degrees C for 3 h and 30 h. XRD analysis showed that dry gels contained anatase phase with low crystallinity, while powders obtained by calcination of dry gels at 500 degrees C for 3 h consisted of pure anatase with high crystallinity. SEM analysis of dried gels and powders shows agglomerates of spherical particles of the size similar to 300 nm. The TEM micrographs confirmed the nanoscale size of the titania powders, with the primary particle size of about 20 nm. Titania powders exhibit maximum pore diameter of 13.2 nm and 9.5 nm for gelation time 3 h and 30 h, respectively. The photocatalytic activity of such synthesized titania is superior to that of commercial photocatalyst Degussa P-25. PB - Academic Press Ltd- Elsevier Science Ltd, London T2 - Superlattices and Microstructures T1 - Synthesis of mesoporous nanocrystalline titania powders by nonhydrolitic sol-gel method EP - 222 IS - 1-2 SP - 217 VL - 46 DO - 10.1016/j.spmi.2008.12.028 ER -
@article{ author = "Tanasković, N. and Radovanović, Željko and Đokić, Veljko and Krstić, Jugoslav and Drmanić, Saša and Janaćković, Đorđe and Petrović, Rada", year = "2009", abstract = "Mesoporous titania with well-crystallized anatase phase was synthesized by nonhydrolytic sol-gel process combined with solvothermal treatment. Titanium-isopropoxide, titanium-tetrachloride, and carbon-tetrachloride were used for synthesis under nitrogen atmosphere in a glove box. The obtained mixture was heated in an autoclave at 140 degrees C for 3 h and 30 h. XRD analysis showed that dry gels contained anatase phase with low crystallinity, while powders obtained by calcination of dry gels at 500 degrees C for 3 h consisted of pure anatase with high crystallinity. SEM analysis of dried gels and powders shows agglomerates of spherical particles of the size similar to 300 nm. The TEM micrographs confirmed the nanoscale size of the titania powders, with the primary particle size of about 20 nm. Titania powders exhibit maximum pore diameter of 13.2 nm and 9.5 nm for gelation time 3 h and 30 h, respectively. The photocatalytic activity of such synthesized titania is superior to that of commercial photocatalyst Degussa P-25.", publisher = "Academic Press Ltd- Elsevier Science Ltd, London", journal = "Superlattices and Microstructures", title = "Synthesis of mesoporous nanocrystalline titania powders by nonhydrolitic sol-gel method", pages = "222-217", number = "1-2", volume = "46", doi = "10.1016/j.spmi.2008.12.028" }
Tanasković, N., Radovanović, Ž., Đokić, V., Krstić, J., Drmanić, S., Janaćković, Đ.,& Petrović, R.. (2009). Synthesis of mesoporous nanocrystalline titania powders by nonhydrolitic sol-gel method. in Superlattices and Microstructures Academic Press Ltd- Elsevier Science Ltd, London., 46(1-2), 217-222. https://doi.org/10.1016/j.spmi.2008.12.028
Tanasković N, Radovanović Ž, Đokić V, Krstić J, Drmanić S, Janaćković Đ, Petrović R. Synthesis of mesoporous nanocrystalline titania powders by nonhydrolitic sol-gel method. in Superlattices and Microstructures. 2009;46(1-2):217-222. doi:10.1016/j.spmi.2008.12.028 .
Tanasković, N., Radovanović, Željko, Đokić, Veljko, Krstić, Jugoslav, Drmanić, Saša, Janaćković, Đorđe, Petrović, Rada, "Synthesis of mesoporous nanocrystalline titania powders by nonhydrolitic sol-gel method" in Superlattices and Microstructures, 46, no. 1-2 (2009):217-222, https://doi.org/10.1016/j.spmi.2008.12.028 . .