High Cr(VI) adsorption capacity of rutile titania prepared by hydrolysis of TiCl<sub>4</sub> with AlCl<sub>3</sub> addition

Shun Wu; Xiao-bo He; Li-jun Wang; Kuo-Chih Chou

doi:10.1007/s12613-020-1965-8

Volume 27 Issue 8

Aug. 2020

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2020 > 27(8): 1157-1163

Shun Wu, Xiao-bo He, Li-jun Wang, and Kuo-Chih Chou, High Cr(VI) adsorption capacity of rutile titania prepared by hydrolysis of TiCl₄ with AlCl₃ addition, Int. J. Miner. Metall. Mater., 27(2020), No. 8, pp. 1157-1163. https://doi.org/10.1007/s12613-020-1965-8

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Shun Wu, Xiao-bo He, Li-jun Wang, and Kuo-Chih Chou, High Cr(VI) adsorption capacity of rutile titania prepared by hydrolysis of TiCl4 with AlCl3 addition, Int. J. Miner. Metall. Mater., 27(2020), No. 8, pp. 1157-1163. https://doi.org/10.1007/s12613-020-1965-8

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Research Article

High Cr(VI) adsorption capacity of rutile titania prepared by hydrolysis of TiCl₄ with AlCl₃ addition

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Corresponding author:
Li-jun Wang E-mail: lijunwang@ustb.edu.cn
Received: 25 September 2019; Revised: 9 December 2019; Accepted: 10 December 2019; Available online: 8 January 2020

Abstract

Abstract

Rutile titania (TiO₂) was successfully prepared via hydrolysis of TiCl₄ in the presence of AlCl₃. The powders were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and Brunauer−Emmett−Teller (BET) surface area analysis. In the present system, AlCl₃ functions as a nucleating agent and induces the formation of rutile TiO₂. The influences of HCl and isopropanol concentrations on the purity and morphology of the rutile TiO₂ were investigated. The purity of the rutile TiO₂ increased with increasing concentration of HCl. Evenly dispersed rutile TiO₂ particles with a spherical morphology were obtained when the HCl and isopropanol concentrations were 0.5 and 1 mol·L^−l, respectively. Furthermore, the prepared TiO₂ powders were used in adsorption tests of the heavy metal pollutant Cr(VI). Rutile TiO₂ sample S-9 demonstrated greater adsorption performance and a removal efficiency that was greater than 99.95% after 60 min of adsorption when the Cr(VI) concentration was 200 mg·L^−l. The maximum adsorption capacity on rutile TiO₂ was 28.9 mg·g⁻¹. This work provides an easy path to prepare a high-performance rutile TiO₂ adsorbent with potential applications in water pollution treatment.
- rutile titania;
- hydrolysis;
- spherical particles;
- adsorption

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