a mos 2 Nanowatt/graphene composite nanomaterial and preparation method thereof
A composite nanomaterial and graphene composite technology, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., to achieve the effect of strong hydrophobicity and strong electrostatic interaction
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Embodiment 1
[0026] 1) Ultrasonically disperse 2.5 mmol of graphene oxide in 60 mL of deionized water, then add 0.8 mmol of gemini surfactant N-dodecylpropylenediamine diammonium bromide, and stir thoroughly;
[0027] 2) Then add 0.76 g (6.25 mmol) L-cysteine and 0.3 g (1.25 mmol) sodium molybdate (Na 2 MoO 4 2H 2 O), and keep stirring to completely dissolve L-cysteine and sodium molybdate, adjust the volume to about 80mL with deionized water;
[0028] 3) Transfer the obtained mixed solution to a 100 mL hydrothermal reaction kettle, put the reaction kettle into a constant temperature oven, and after hydrothermal reaction at 230 °C for 24 h, let it cool down to room temperature naturally, and collect the solid by centrifugation The product was washed thoroughly with deionized water and dried under vacuum at 100°C;
[0029] 4) The solid product obtained above was heat-treated at 800 °C for 2 h in a nitrogen / hydrogen mixed atmosphere, and the volume fraction of hydrogen in the mixed gas ...
Embodiment 2
[0037] 1) Ultrasonically disperse 2.5 mmol of graphene oxide in 60 mL of deionized water, then add 0.8 mmol of gemini surfactant N-dodecylpropylenediamine diammonium bromide, and stir thoroughly;
[0038] 2) Then add 1.50g (12.5 mmol) L-cysteine and 0.6 g (2.5 mmol) sodium molybdate (Na 2 MoO 4 2H 2 O), and keep stirring to completely dissolve L-cysteine and sodium molybdate, adjust the volume to about 80mL with deionized water;
[0039] 3) Transfer the obtained mixture to a 100 mL hydrothermal reaction kettle, put the reaction kettle into a constant temperature oven, and after hydrothermal reaction at 220 °C for 24 h, let it cool down to room temperature naturally, and collect the solid by centrifugation The product was washed thoroughly with deionized water and dried under vacuum at 100°C;
[0040] 4) The solid product obtained above was heat-treated at 800 °C for 2 h in a nitrogen / hydrogen mixed atmosphere to prepare MoS 2 Nanowatt / graphene composite nanomaterial, t...
Embodiment 3
[0043] 1) Ultrasonically disperse 3.75 mmol of graphene oxide in 60 mL of deionized water, then add 1.2 mmol of gemini surfactant N-dodecylpropylenediamine diammonium bromide, and stir thoroughly;
[0044] 2) Then add 0.76g (6.25 mmol) L-cysteine and 0.3 g (1.25 mmol) sodium molybdate (Na 2 MoO 4 2H 2 O), and keep stirring to completely dissolve L-cysteine and sodium molybdate, adjust the volume to about 80mL with deionized water;
[0045] 3) Transfer the obtained mixed solution to a 100 mL hydrothermal reaction kettle, and add deionized water to adjust the volume to 80 mL, put the reaction kettle in a constant temperature oven, and react hydrothermally at 240 °C for 24 h, let It was naturally cooled to room temperature, and the solid product was collected by centrifugation, washed thoroughly with deionized water, and dried under vacuum at 100°C;
[0046] 4) The solid product obtained above was heat-treated at 800 °C for 2 h in a nitrogen / hydrogen mixed atmosphere to pr...
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