Preparation and application of ion exchange membrane of electric active nickel ferricyanide
An ion exchange membrane, nickel ferricyanide technology, applied in cation exchange materials, ion exchange water/sewage treatment, etc., can solve the problems of secondary pollution, large consumption of electrolyte and waste electrolyte recovery, etc., to eliminate secondary pollution. The effect of pollution, low cost, and simple capillary chemical deposition process
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Embodiment 1
[0013] Take 0.04M potassium ferricyanide solution, water, 0.04M nickel sulfate solution, and 0.5M sodium sulfate solution to prepare and mix in sequence according to the following volume ratios: 4 parts of potassium ferricyanide solution; 3 parts of water; 3 parts of nickel sulfate solution; Sodium solution 2 parts. At room temperature and in a saturated humid air environment, inject the above-mentioned film-making mixture into the capillary gap formed by the platinum sheet and the hydrophobic PVC film with a sampler, let it stand for chemical deposition for 1 hour, take it out, and let it dry naturally at room temperature to remove the PVC film. That is, an electroactive nickel ferricyanide ion exchange membrane is obtained.
Embodiment 2
[0015] 0.01M potassium ferricyanide solution, water, 0.01M nickel nitrate solution, and 0.2M sodium nitrate solution were prepared and mixed in sequence according to the following volume ratios: 7 parts of potassium ferricyanide solution; 1 part of water; 2 parts of nickel nitrate solution; 2 parts of the solution. At room temperature and in a saturated humid air environment, use a syringe pump to inject the above-mentioned film-making mixed solution into the capillary gap formed by stainless steel mesh and hydrophobic PVC film, let it stand for chemical deposition for 1.5 hours, take it out and dry it naturally at room temperature, remove the PVC film and An electroactive nickel ferricyanide ion exchange membrane is obtained.
Embodiment 3
[0017] 0.01M potassium ferricyanide solution, water, 0.05M nickel chloride solution, and 0.5M sodium chloride solution were prepared and mixed in sequence according to the following volume ratios: 3 parts of potassium ferricyanide solution; 3 parts of water; 4 parts of nickel chloride solution ; 3 parts of sodium chloride solution. At room temperature and in a saturated humid air environment, use a syringe pump to inject the above-mentioned film-making mixed solution into the capillary gap between graphite particles and hydrophobic PVC film, let it stand for chemical deposition for 2 hours, take it out and dry it naturally at room temperature, and remove the PVC film to obtain An electroactive nickel ferricyanide ion exchange membrane attached to the particle surface.
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