Dispersion method for surface non-covalent modification of nickel nanowire
A non-covalent modification, nickel nanowire technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problem of nickel nanowires prone to agglomeration or entanglement, and solve the problem of agglomeration. Or winding, broad application prospect, good effect
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Embodiment 1
[0021] (1) Configure surface treatment solution: 0.2mol / L sulfuric acid solution;
[0022] (2) Place the nickel nanowires in the surface treatment solution, and mechanically stir for 4 minutes at 50° C., with a stirring rate of 400 rpm;
[0023] (3) After repeatedly washing the nickel nanowires to neutrality, prepare an aqueous solution of nickel nanowires with a mass concentration of 0.05%;
[0024] (4) Add cetyltrimethylammonium bromide to the prepared nanowire aqueous solution to make the mass concentration 0.5%, and stir at 20°C for 10 min at a stirring rate of 400 rpm.
[0025] At room temperature, test the settling time and absorbance of 1h of the nickel nanowire suspension treated by dispersion, its value is 13min and 0.631 respectively, compared with the nickel nanowire suspension not treated by this dispersion method under the same conditions, its sedimentation The time is extended by 44.44%, and the absorbance is increased by 10.31%, that is to say, the dispersion e...
Embodiment 2
[0027] (1) Configure surface treatment solution: 0.25mol / L sulfuric acid solution;
[0028] (2) Place the nickel nanowires in the surface treatment solution, and mechanically stir for 5 minutes at 60° C., with a stirring rate of 500 rpm;
[0029] (3) After repeatedly washing the nickel nanowires to neutrality, prepare an aqueous solution of nickel nanowires with a mass concentration of 0.05%;
[0030] (4) Add cetyltrimethylammonium bromide to the prepared nanowire aqueous solution to make the mass concentration 0.75%, and stir at 30° C. for 15 minutes at a stirring speed of 500 rpm.
[0031] At room temperature, test the settling time and the absorbance of 1h through the nickel nanowire suspension of dispersion treatment, its value is respectively 19min and 0.693, compared with the nickel nanowire suspension that is not processed by this dispersion method under the same conditions, its The settling time was prolonged by 111%, and the absorbance was increased by 21.15%, that i...
Embodiment 3
[0033] (1) Configure surface treatment solution: 0.3mol / L sulfuric acid solution;
[0034] (2) Place the nickel nanowires in the surface treatment solution, and mechanically stir for 5 minutes at 70° C., with a stirring rate of 600 rpm;
[0035] (3) After repeatedly washing the nickel nanowires to neutrality, prepare an aqueous solution of nickel nanowires with a mass concentration of 0.05%;
[0036] (4) Add cetyltrimethylammonium bromide to the prepared nanowire aqueous solution to make the mass concentration 0.1%, and stir at 40° C. for 15 minutes at a stirring speed of 600 rpm.
[0037] At room temperature, test the settling time and the absorbance of 1h through the nickel nanowire suspension of dispersion treatment, its value is respectively 22min and 0.711, compares with the nickel nanowire suspension that is not processed by this dispersion method under the same condition, and its The settling time was extended by 144%, and the absorbance was increased by 24.3%, that is...
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