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One-step synthesis of highly dispersed nanosheets of magadiite
Abstract By using the combination of PEG 300 (polyethylene glycol with average molecular weight of 300) and sodium salts, highly dispersed nanosheets of magadiite were directly obtained from hydrothermal synthesis. The total concentration of sodium ions(Na+/PEG 300), the crystallization time and the stirring speed are three key parameters that determine the dispersion of magadiite. As the molar ratio of Na+/PEG 300 was increased to 0.96 or above, highly dispersed nanosheets of magadiite were synthesized. By increasing the stirring speed, magadiite becomes more stable and its dispersity is greatly enhanced. Based on these results, a mechanism for the formation of dispersed magadiite has been proposed, in which “in situ delamination” was assumed.
Highlights Highly dispersed nanosheets of magadiite were synthesized in one-step. The total concentration of Na+, the crystallization time and the stirring speed are three key factors in this synthesis. “In situ delamination” was proposed for the formation of dispersed magadiite.
One-step synthesis of highly dispersed nanosheets of magadiite
Abstract By using the combination of PEG 300 (polyethylene glycol with average molecular weight of 300) and sodium salts, highly dispersed nanosheets of magadiite were directly obtained from hydrothermal synthesis. The total concentration of sodium ions(Na+/PEG 300), the crystallization time and the stirring speed are three key parameters that determine the dispersion of magadiite. As the molar ratio of Na+/PEG 300 was increased to 0.96 or above, highly dispersed nanosheets of magadiite were synthesized. By increasing the stirring speed, magadiite becomes more stable and its dispersity is greatly enhanced. Based on these results, a mechanism for the formation of dispersed magadiite has been proposed, in which “in situ delamination” was assumed.
Highlights Highly dispersed nanosheets of magadiite were synthesized in one-step. The total concentration of Na+, the crystallization time and the stirring speed are three key factors in this synthesis. “In situ delamination” was proposed for the formation of dispersed magadiite.
One-step synthesis of highly dispersed nanosheets of magadiite
Yuan, Zhiqing (Autor:in) / Tao, Weichuan (Autor:in) / Wang, Zhendong (Autor:in) / Yang, Weimin (Autor:in)
Applied Clay Science ; 181
16.07.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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