A method for the synthesis of 3D structures assembled from ZnO nanosheets modified on La surface
A surface modification and three-dimensional structure technology, applied in the field of nanomaterials, can solve the problems that limit the application and promotion of La modified ZnO photocatalysts, and achieve the effects of improving photocatalytic effect, high specific surface area and large size
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Embodiment 1
[0030] Add a volume of 10 mL of zinc nitrate solution (0.5 mol / L) into a 100 mL beaker, magnetically stir and ice-bath, and another volume of 10 mL of sodium hydroxide solution (3.0 mol / L), put it in a separatory funnel, pass Add the sodium hydroxide solution to the zinc nitrate solution drop by drop using a separatory funnel. Subsequently, 1.0 mL of sodium lauryl sulfate solution (0.2 mol / L) and a certain volume of distilled water were added to obtain a mixed solution with a volume of 50 mL. Remove the ice bath, continue to stir vigorously at room temperature for 1.5 h, and stand still to obtain a precursor solution. The precursor solution was transferred to an Erlenmeyer flask with a ground glass stopper, and the Erlenmeyer flask was placed in a constant temperature water bath for 5 hours at 70°C to obtain a white precipitate. The white precipitate was separated by suction filtration, washed with distilled water and ethanol, and dried in a constant temperature blast drying ...
Embodiment 2
[0033]Add 10 mL of zinc nitrate solution (1.0 mol / L) into a 100 mL beaker, stir magnetically and in an ice bath, and take another 10 mL of sodium hydroxide solution (4.0 mol / L), put it in a separatory funnel, and pass Add the sodium hydroxide solution to the zinc nitrate solution drop by drop using a separatory funnel. Then 2.5 mL of sodium dodecyl sulfate solution (0.2 mol / L) and a certain volume of distilled water were added to obtain a mixed solution with a volume of 50 mL. Remove the ice bath, continue to stir vigorously at room temperature for 1.5 h, and stand still to obtain a precursor solution. The precursor solution was transferred to an Erlenmeyer flask with a ground glass stopper, and the Erlenmeyer flask was placed in a constant temperature water bath for 5 hours at 80°C to obtain a white precipitate. The white precipitate was separated by suction filtration, washed with distilled water and ethanol, and dried in a 70°C constant temperature blast drying oven. Afte...
Embodiment 3
[0035] Add 10 mL of zinc nitrate solution (1.5 mol / L) into a 100 mL beaker, stir magnetically and in an ice bath, and take another 10 mL of sodium hydroxide solution (5.0 mol / L), put it in a separatory funnel, and pass Add the sodium hydroxide solution to the zinc nitrate solution drop by drop using a separatory funnel. Subsequently, 5.0 mL of sodium lauryl sulfate solution (0.2 mol / L) and a certain volume of distilled water were added to obtain a mixed solution with a volume of 50 mL. Remove the ice bath, continue to stir vigorously at room temperature for 1.5 h, and stand still to obtain a precursor solution. The precursor solution was transferred to an Erlenmeyer flask with a ground glass stopper, and the Erlenmeyer flask was placed in a constant temperature water bath for 5 hours at 85°C to obtain a white precipitate. The white precipitate was separated by suction filtration, washed with distilled water and ethanol, and dried in a constant temperature blast drying oven at...
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