Express Al/Fe oxide–oxyhydroxide sorbent systems for Cr(VI) removal from aqueous solutions

Mikhaylov, Vasily I.; Масленникова, Т. П.; Krivoshapkina, Elena F.; Тропников, Е. М.

doi:10.1016/j.cej.2018.05.023

Cited by 48 publications

(15 citation statements)

References 49 publications

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“…The solution of silver nitrate (0. AlOOH NPs: Boehmite NPs were synthesized as previously described [56][57][58], where 2.2 g of Al(C 3 H 7 O) 3 were added to 50 mL of deionized water at 90 • C, and a white precipitate was formed immediately. Before ultrasound treatment, the precipitate was kept at 90 • C under vigorous stirring for 15 min to complete the production of boehmite NPs and to complete the evaporation of the isopropanol formed during hydrolysis.…”

Section: Synthesis Of Np Solmentioning

confidence: 99%

Effects of Metal Oxide Nanoparticles on Toll-Like Receptor mRNAs in Human Monocytes

et al. 2020

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For the widespread application of nanotechnology in biomedicine, it is necessary to obtain information about their safety. A critical problem is presented by the host immune responses to nanomaterials. It is assumed that the innate immune system plays a crucial role in the interaction of nanomaterials with the host organism. However, there are only fragmented data on the activation of innate immune system factors, such as toll-like receptors (TLRs), by some nanoparticles (NPs). In this study, we investigated TLRs’ activation by clinically relevant and promising NPs, such as Fe3O4, TiO2, ZnO, CuO, Ag2O, and AlOOH. Cytotoxicity and effects on innate immunity factors were studied in THP-1(Tohoku Hospital Pediatrics-1) cell culture. NPs caused an increase of TLR-4 and -6 expression, which was comparable with the LPS-induced level. This suggests that the studied NPs can stimulate the innate immune system response inside the host. The data obtained should be taken into account in future research and to create safe-by-design biomedical nanomaterials.

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Section: Synthesis Of Np Solmentioning

confidence: 99%

Effects of Metal Oxide Nanoparticles on Toll-Like Receptor mRNAs in Human Monocytes

et al. 2020

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“…Mikhaylov et al (2018) 164 synthesized Al/Fe oxide-oxyhydroxide composite powders through a hydrothermal method applying metal sulfate solutions and urea as precursors. The maximum specific surface area (190 m 2 g À1 ) is reached for the synthesized samples synthesized from solutions with [Al 3+ ] : [Fe 3+ ] = 1: 0 and 1 : 1.…”

Section: Other Metallic Adsorbentsmentioning

confidence: 99%

Perspectives regarding metal/mineral-incorporating materials for water purification: with special focus on Cr(vi) removal

et al. 2020

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“…Note that Cr(VI) adsorption capacity of sandwich-like films exceeds the sorption capacity of powdered Al/Fe oxide-oxyhydroxide sorbent systems, 26 synthetic Fe 2 O 3 -Al 2 O 3 nanocomposite, 27 hierarchical SiO 2 @γ-AlOOH spheres, 28 and magnetic mesoporous Fe-Al 2 O 3 films 17,18 (Table 4).…”

Section: Cr(vi) Adsorption Testmentioning

confidence: 99%

The effect of layer thickness on adsorption and catalytic activity of sandwich‐like ceramics

et al. 2020

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Scalable and easily implementable sol‐gel approach for creating self‐supported sandwich‐like Al2O3/Fe2O3/Al2O3 films was proposed. A comprehensive study of the composition, microstructure, thermal, textural, catalytic, and adsorption properties were carried out. The possibility of varying the relative thickness of the layers allows to diversify functional properties of the materials. On the one hand, films with thick mesoporous alumina layers and a thin internal iron oxide layer behave as effective magnetically separable Cr(VI) adsorbents. On the other hand, thin thermally and chemically resistant mesoporous alumina layers, bounding the iron oxide layer, prevent degradation and deactivation of the catalytically active iron oxide sites in the catalysis process and provide full access of the reagents. The Al2O3/Fe2O3/Al2O3 films can be easily separated from a liquid medium due to rapid settling of large fragments and the possibility of magnetic separation. Thus, these films are convenient objects for various environmental applications.

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Express Al/Fe oxide–oxyhydroxide sorbent systems for Cr(VI) removal from aqueous solutions

Cited by 48 publications

References 49 publications

Effects of Metal Oxide Nanoparticles on Toll-Like Receptor mRNAs in Human Monocytes

Effects of Metal Oxide Nanoparticles on Toll-Like Receptor mRNAs in Human Monocytes

Perspectives regarding metal/mineral-incorporating materials for water purification: with special focus on Cr(vi) removal

The effect of layer thickness on adsorption and catalytic activity of sandwich‐like ceramics

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