The effect of pH on the nucleation of titania by hydrolysis of TiCl4: Der Einfluss des pH-Werts auf die Keimbildung von Titandioxid bei der Hydrolyse von TiCl4

被引：0
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作者：
Kotsyubynsky V.O. [1 ]
Myronyuk I.F. [1 ]
Myronyuk L.I. [1 ]
Chelyadyn V.L. [2 ]
Mizilevska M.H. [3 ]
Hrubiak A.B. [1 ]
Tadeush O.K. [3 ]
Nizamutdinov F.M. [1 ]
机构：
[1] Vasyl Stefanyk Precarpathian National University, Shevchenko Str. 57, Ivano-Frankivsk
[2] Frantsevich Institute for Problems of Materials Science, Krzhizhanovsky Str. 3, Kyiv
[3] South Ukrainian National Pedagogical University Named after K.D. Ushynsky, Staroportofrankivs'ka Str. 26, Odesa
来源：
Kotsyubynsky, V.O. (kotsuybynsky@gmail.com) | 1600年 / Wiley-VCH Verlag卷 / 47期
关键词：
Hydrolyse; Keimbildung; Polykondensation; Titandioxid;
D O I：
10.1002/mawe.201600491
中图分类号：
学科分类号：
摘要：
We have proposed and experimentally tested a phenomenological model of nucleation of a specific polymorphic phase of titanium dioxide (anatase, rutile, brookite) resulting from the interaction of Ti4+ hydroxocomplexes at different pH values of reaction medium. The degree of hydrolysis was determined as a function of pH for the monomers formed during the hydrolysis of titanium tetrachloride. Mixtures of anatase and brookite with an average size of coherently scattering domains of 5 nm and particles of ellipsoidal shape were obtained by precipitation at pH = 8. At the same time, nanoparticles of rutile with rod-like morphology and an average size of 10 nm were obtained at a pH = 1. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页码：288 / 294
页数：6
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