Preparation method of highly oriented transparent dihydroxy metal oxide film
A double-hydroxy compound and oxide film technology, applied in chemical instruments and methods, aluminum compounds, inorganic chemistry, etc., can solve the problems of complex peeling process, difficult control, easy aggregation, high laminate activity, etc., to achieve easy operation, Equipment requires simple, highly directional effects
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Embodiment 1
[0017] Step A: take by weighing 41.03g Mg(NO 3 ) 2 ·6H 2 O and 30.01g Al(NO 3 ) 3 9H 2 O dissolved in 300mL to remove CO 2 In water, prepare a mixed salt solution, take another 19.2g NaOH and dissolve it in 300mL to remove CO 2 In water, quickly pour the alkali solution and the mixed salt solution into the fully back-mixed rotating liquid film reactor at room temperature for 1 min, and the resulting slurry was heated at 100°C under N 2 Crystallize under protection for 8 hours, centrifuge, and wash the obtained sample until neutral. A small amount of sample was taken out and dried at 60°C for 24 hours and ground to obtain Mg 2 Al-NO 3 LDHs powder.
[0018] Step B: Weigh 1.5g of centrifuged and washed sample, add 10mL to remove CO 2 water, stir evenly at room temperature, pour into a petri dish, and dry at 60°C for 4 hours to obtain transparent Mg 2 Al-NO 3 LDHs film, its Mg 2+ / Al 3+ =2.
[0019] Mg 2 Al-NO 3 XRD patterns of LDHs films and Mg 2 Al-NO 3 The...
Embodiment 2
[0021] Step A: take by weighing 38.68g Nii (NO 3 ) 2 ·6H 2 O and 24.99g Al(NO 3 ) 3 9H 2 O dissolved in 250mL to remove CO 2 In the water, prepare a mixed salt solution, another 15.20g NaOH is dissolved in 250mL to remove CO 2 At room temperature, quickly pour the alkali solution and the mixed salt solution into the fully back-mixed rotary liquid film reactor to react for 1min, and the obtained slurry was heated at 100°C under N 2 Crystallize under protection for 8 hours, centrifuge, and wash the obtained sample until neutral. A small amount of sample was taken out and dried at 60°C for 24 hours and ground to obtain Ni 2 Al-NO 3 LDHs powder.
[0022] Step B: Weigh 3g of centrifuged and washed sample, add 10mL to remove CO2 2 water, stirred evenly at room temperature, poured into a petri dish, and dried at 20°C for 4 days to obtain green transparent Ni 2 Al-NO 3 LDHs film, its Ni 2+ / Al 3+ =2.
[0023] will Ni 2 Al-NO 3 XRD patterns of LDHs films and Ni 2 A...
Embodiment 3
[0025] Step A: take by weighing 28.56g Zn(NO 3 ) 2 ·6H 2 O and 9.00g Al(NO 3 ) 3 9H 2 O dissolved in 150mL to remove CO 2 In the water, it is prepared as a mixed salt solution, and another 9.12g NaOH is dissolved in 150mL to remove CO 2 At room temperature, quickly pour the alkali solution and the mixed salt solution into the fully back-mixed rotary liquid film reactor to react for 1min, and the obtained slurry was heated at 100°C under N 2 Crystallize under protection for 8 hours, centrifuge, and wash the obtained sample until neutral. A small amount of sample was taken out and dried at 60°C for 24 hours and ground to obtain Zn 2 Al-NO 3 LDHs powder.
[0026] Step B: Weigh 2 g of the centrifuged and washed sample, add 10 mL to remove CO 2 water, stir evenly at room temperature, pour into a petri dish, and dry at 50°C for 6 hours to obtain transparent Zn 2 Al-NO 3 LDHs film, its Zn 2+ / Al 3+ =2.
[0027] Zn 2 Al-NO 3 XRD patterns of LDHs films and Zn 2 Al-N...
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