Synthesis of mesoporous nanocrystalline titania powders by nonhydrolitic sol-gel method
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2009
Authors
Tanaskovic, N.Radovanović, Z.

Dokic, V.
Krstić, Jugoslav

Drmanić, Saša Ž.

Janaćković, Đorđe

Petrovic, R.
Article (Published version)

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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
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IHTMTY - JOUR AU - Tanaskovic, N. AU - Radovanović, Z. AU - Dokic, V. AU - Krstić, Jugoslav AU - Drmanić, Saša Ž. AU - Janaćković, Đorđe AU - Petrovic, R. PY - 2009 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/527 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 VL - 46 IS - 1-2 SP - 217 EP - 222 DO - 10.1016/j.spmi.2008.12.028 ER -
@article{ author = "Tanaskovic, N. and Radovanović, Z. and Dokic, V. and Krstić, Jugoslav and Drmanić, Saša Ž. and Janaćković, Đorđe and Petrovic, R.", 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", volume = "46", number = "1-2", pages = "217-222", doi = "10.1016/j.spmi.2008.12.028" }
Tanaskovic, N., Radovanović, Z., Dokic, V., Krstić, J., Drmanić, S. Ž., Janaćković, Đ.,& Petrovic, 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
Tanaskovic N, Radovanović Z, Dokic V, Krstić J, Drmanić SŽ, Janaćković Đ, Petrovic 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 .
Tanaskovic, N., Radovanović, Z., Dokic, V., Krstić, Jugoslav, Drmanić, Saša Ž., Janaćković, Đorđe, Petrovic, R., "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 . .