Composite adsorbing material for removing copper ions in natural water body and preparation method of composite adsorbing material
A composite adsorption material and adsorption material technology, applied in the composite adsorption material and its preparation, the field of new materials, can solve the problems of short service life, can not be recycled and reused, etc., achieve long service life, high recycling rate and good effect Effect
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example 1
[0026] Take the discarded rice husk, wash it several times with distilled water, then filter, dry at 50°C, crush it, and set it aside. Mix nickel nitrate, lanthanum nitrate and citric acid in a molar ratio of 1:1:2, dissolve in deionized water, slowly heat and evaporate to a viscous shape while stirring, continue heating, and decompose the viscous product into a Roast in a muffle furnace at 700°C to obtain black powder LaNiO3, then place the powder in a quartz boat in a tube furnace, pass in an inert gas, heat up to 600°C, and then pass H 2 Reduction for 1h, finally pass carbon source gas CH 4 React for 0.6h to obtain carbon nanotubes. Dissolve the rice husk powder in water, add 3% polyvinyl alcohol, and heat and stir for 3 hours to dissolve the polyvinyl alcohol, then add an appropriate amount of carbon nanotubes for impregnation, stir for 3 hours, and then dry at 60°C. This novel composite adsorption material can be obtained.
example 2
[0028] Take the discarded rice husk, wash it several times with distilled water, then filter it, dry it at 60°C, crush it, and set it aside. Mix nickel nitrate, lanthanum nitrate and citric acid in a molar ratio of 1:1:2, dissolve in deionized water, slowly heat and evaporate to a viscous shape while stirring, continue heating, and decompose the viscous product into a Roast in a muffle furnace at 800°C to obtain black powder LaNiO3, then place the powder in a quartz boat in a tube furnace, pass in an inert gas, heat up to 700°C, and then pass H 2 Reduction for 2h, finally pass carbon source gas CH 4 React for 1 hour to obtain carbon nanotubes. Dissolve the rice husk powder in water, add 5% polyvinyl alcohol, and heat and stir for 4 hours to dissolve the polyvinyl alcohol, then add an appropriate amount of carbon nanotubes for impregnation, stir for 4 hours, and then dry at 80°C. This novel composite adsorption material can be obtained.
example 3
[0030] Take the discarded rice husk, wash it several times with distilled water, then filter it, dry it at 55°C, crush it, and set it aside. Mix nickel nitrate, lanthanum nitrate and citric acid in a molar ratio of 1:1:2, dissolve in deionized water, slowly heat and evaporate to a viscous shape while stirring, continue heating, and decompose the viscous product into a Roast in a muffle furnace at 750°C to obtain black powder LaNiO3, then place the powder in a quartz boat in a tube furnace, pass in an inert gas, heat up to 650°C, and then pass H 2 Reduction for 2h, finally pass carbon source gas CH 4 React for 0.8h to obtain carbon nanotubes. Dissolve the rice husk powder in water, add 4% polyvinyl alcohol, and heat and stir for 4 hours to dissolve the polyvinyl alcohol, then add an appropriate amount of carbon nanotubes for impregnation, stir for 3 hours, and then dry at 70°C. This novel composite adsorption material can be obtained.
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