Phosphide heterogeneous nanosheet and preparation method thereof
A nanosheet and phosphide technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of slow bubble desorption, low catalytic activity, etc., and achieve good hydrophilic and gas-repellent, The effect of increasing the specific surface area and preventing excessive aggregation
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Embodiment 1
[0022] (1) Nickel foam (abbreviated as NF) is first pretreated to remove the oil and oxide layer on the surface. Ultrasonic cleaning was performed sequentially with 4M hydrochloric acid, acetone, ethanol and distilled water, and drying was performed with a high-speed flow of Ar gas.
[0023] (2)Ni(OH) 2 Synthesis of / NF precursor: 0.58g Ni(NO3) 2 .6H 2 O, 0.15g NH 4 F and 0.60 g of urea were dissolved in 30 mL of deionized water, stirred vigorously for 20 min, and then the mixture was transferred to an autoclave. Nickel foam with dimensions of 2.5 cm × 4 cm was immersed in the autoclave lining for hydrothermal synthesis. Autoclave at 120°C for 10 hours. After cooling to room temperature, an obvious light green substance appeared on the surface of the nickel foam, which was taken out and cleaned with deionized water and ethanol to remove the adsorbed impurities on the surface. Finally, it was dried under a vacuum environment at 60°C for 15 hours.
[0024] (3) Ion adsorpt...
Embodiment 2
[0031] (1) Nickel foam (abbreviated as NF) is first pretreated to remove the oil and oxide layer on the surface. Ultrasonic cleaning was performed sequentially with 4M hydrochloric acid, acetone, ethanol and distilled water, and drying was performed with a high-speed flow of Ar gas.
[0032] (2)Ni(OH) 2 Synthesis of / NF precursor: Ni(NO3) 2 .6H 2 O, NH 4 F and urea were dissolved in 30 mL of deionized water at concentrations of 0.02M, 0.1M, and 0.1M, stirred vigorously for 20 min, and then the mixture was transferred to an autoclave. Nickel foam with dimensions of 2.5 cm × 4 cm was immersed in the autoclave lining for hydrothermal synthesis. Autoclave at 100°C for 10 hours. After cooling to room temperature, an obvious light green substance appeared on the surface of the nickel foam, which was taken out and cleaned with deionized water and ethanol to remove the adsorbed impurities on the surface. Finally, it was dried under a vacuum environment at 60°C for 15 hours.
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Embodiment 3
[0039] (1) Nickel foam (abbreviated as NF) is first pretreated to remove the oil and oxide layer on the surface. Sequentially 4M hydrochloric acid, acetone, ethanol and distilled water for ultrasonic cleaning, and high-speed flow of Ar gas for drying.
[0040] (2)Ni(OH) 2 Synthesis of / NF precursor: Ni(NO3) 2 .6H 2 O, NH 4 F and urea were dissolved in 30 mL of deionized water at concentrations of 0.04M, 0.25M, and 0.3M, stirred vigorously for 20 min, and then the mixture was transferred to an autoclave. Nickel foam with dimensions of 2.5 cm × 4 cm was immersed in the autoclave lining for hydrothermal synthesis. Autoclave at 100°C for 10 hours. After cooling to room temperature, an obvious light green substance appeared on the surface of the nickel foam, which was taken out and cleaned with deionized water and ethanol to remove the adsorbed impurities on the surface. Finally, it was dried under a vacuum environment at 60°C for 15 hours.
[0041] (3) Ion adsorption to obt...
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