Zeolite–titanium dioxide nanocomposites: Preparation, characterization, and adsorption properties

Kravchenko, G. V.; Domoroshchina, E. N.; Кузьмичева, Г. М.; Gaynanova, A. A.; Amarantov, S. V.; Pirutko, Larisa V.; Tsybinsky, A. M.; Sadovskaya, N. V.; Копылова, Е. В.

doi:10.1134/s1995078016050098

Cited by 17 publications

(19 citation statements)

References 31 publications

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“…The sorption capacities with reference to nitrogen were measured by the Brunauer-Emmet-Teller (BET) method using the procedures described by Kravchenko et al (2016).…”

Section: Methodsmentioning

confidence: 99%

“…Study of the adsorption capacity of the samples was performed according to (Kravchenko et al 2016) on an aqueous solution with concentration of phosphorus 10 mg/l (C initial ) prepared from the standard solutions of P(V) and As(V).…”

Section: Methodsmentioning

confidence: 99%

“…The NTD/Y nanocomposites were synthesized in situ (Kravchenko et al 2016) by the addition of zeolite Y (0.25 g) to the reaction mixture in the course of the synthesis of NTD via short-term hydrolysis of titanyl sulfate, TiOSO 4 .xH 2 SO 4 .yH 2 O, (7.35 g) with the subsequent heating to 95(± 2) °C, separation of the resulting solid phase by vacuum filtration, washing with water and acetone, and drying in a drying oven for 30 min at t = 90 °C.…”

Section: Synthetic Proceduresmentioning

confidence: 99%

“…According to the literature data, NTD/Y nanocomposites combine the properties of the initial components: photocatalytic (Domoroshchina et al 2017;Kuwahara et al 2012;Wang et al 2008Wang et al , 2015Kamegawa et al 2013;Jansson et al 2015;Maraschi et al 2014), adsorption (Domoroshchina et al 2017;Kravchenko et al 2016;Zendehdel et al 2014), and bactericidal (Domoroshchina et al 2017).…”

Section: Introductionmentioning

confidence: 99%

“…The adsorption of P(V) ions from aqueous media in the presence of NTD/Y nanocomposite was studied by Domoroshchina et al (2017) and Kravchenko et al (2016).…”

Section: Introductionmentioning

confidence: 99%

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Changing the characteristics and properties of zeolite Y and nano-anatase in the formation of a nano-anatase/Y composite with improved photocatalytic and adsorption properties

et al. 2018

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Zeolite Y and the NTD/Y nanocomposite, which were synthesized in situ (the addition of zeolite Y to the reaction mixture in the course of the synthesis of NTD by the sulfate method), were studied by a variety of methods. The decrease in the particle size (scanning electron microscopy) and the water content in pores (X-ray powder diffraction study, the full-profile Rietveld method, IR spectroscopy, differential scanning calorimetry), the increase in OH groups content and the decrease in the water content on the surface of zeolite (X-ray photoelectron spectroscopy) in the composition of NTD/Y compared to the initial zeolite Y were all established. A larger specific surface area of NTD/Y (Brunauer-Emmet-Teller method) compared to the initial zeolite Y is due to the fact that zeolite Y in the nanocomposite contains a smaller amount of water because of the synthesis conditions and the presence of nanocrystalline NTD on the surface of zeolite particles. It was found that NTD/Y nanocomposite exhibits a higher photocatalytic activity in the model decomposition reaction of methyl orange under UV and adsorption capacity for the extraction of P(V) and As(V) ions from aqueous media compared to the initial zeolite and pure NTD obtained under the same conditions, which differs from NTD/Y by the larger particle size, the smaller specific surface and the smaller content of OH groups and water on the surface. The role of Bronsted and Lewis centers in the realization of properties is discussed.

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“…The sorption capacities with reference to nitrogen were measured by the Brunauer-Emmet-Teller (BET) method using the procedures described by Kravchenko et al (2016).…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Synthetic Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The adsorption of P(V) ions from aqueous media in the presence of NTD/Y nanocomposite was studied by Domoroshchina et al (2017) and Kravchenko et al (2016).…”

Section: Introductionmentioning

confidence: 99%

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