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Direct growth of lithium magnesium silicate nanotubes on a glass slide

Abstract

A novel, facile, one-step hydrothermal method for the direct growth of lithium magnesium silicate (hectorite) nanotubes on a silicate glass slide has been developed. Due to the surface tension induced by lattice defects, the initially synthesized two-dimensional hectorite nanosheets were spontaneously cured in situ thereby forming nanotubes with external diameters of around 100–200 nm and lengths of several micrometers on a glass slide substrate under hydrothermal condition. This is totally different from those prepared from the conventional hydrothermal method that employs various water colloidal materials as the silicate source. The characterization results suggest that the use of a bulk substrate glass slide and alkaline conditions are the two key points for obtaining tube-like synthetic hectorites with high intensity of surface negative charges. The calculated band gap of hectorite nanotubes is 3.16 eV by diffuse reflection spectroscopy (DRS), which is much narrower than that of hectorites sheets. Furthermore, under the same measurement condition, ionic conductivity of synthetic hectorites increases with its curlling up degree, which is mainly attributed to intensified concentration and accelerated mobility of carriers as supported by zeta potential result.

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Publication details

The article was accepted on 10 Jul 2018 and first published on 10 Jul 2018


Article type: Paper
DOI: 10.1039/C8CE00887F
Citation: CrystEngComm, 2018, Accepted Manuscript
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    Direct growth of lithium magnesium silicate nanotubes on a glass slide

    C. Hai, Y. zhou, F. Wang and M. Fuji, CrystEngComm, 2018, Accepted Manuscript , DOI: 10.1039/C8CE00887F

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