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Water body pollution repairing agent and preparation method thereof
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A water pollution and restoration agent technology, applied in the field of water pollution control, can solve problems such as secondary pollution, adsorbents that cannot be reused, and insufficient adsorption capacity
Pending Publication Date: 2021-10-19
南京和于润科技有限公司
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Abstract
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Problems solved by technology
Among the types of water environmental pollution, heavy metal water pollution is particularly widespread, and in the repair process, secondary pollution is often caused by insufficient adsorption capacity, or the disadvantage that the adsorbent cannot be reused. Therefore, this application research has prepared a reusable and adsorbent Powerful water pollution remediation agent
Method used
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[0031] 10 parts of modified chitosan fiber, 2 parts of modified graphene oxide.
[0032] A kind of preparation method of water body pollution remediation agent, the preparation method of described water body pollution remediation agent is:
[0033] (1) Immerse graphene oxide in an ammoniumazide solution 5 times the mass of graphene oxide, sonicate at 40kHz, 200W and heat to 100°C, react until no gas escapes, centrifuge and wash with absolute ethanol 3 times, dried to constant weight, prepared pre-modified graphene oxide;
[0034] (2) Disperse disodium edetate in deionized water with 5 times the mass of disodium edetate to obtain a disodium edetate dispersion, and mix the pre-modified graphene oxide suspension with The disodium edetate dispersion was mixed at a mass ratio of 2:1, ultrasonicated at 40kHz and 200W for 2h, transferred to a drying oven, dried at 60°C to constant weight, washed 3...
Embodiment 2
[0044] A water body pollution remediation agent, by weight parts, mainly includes:
[0045] 10 parts of modified chitosan fiber, 2 parts of modified graphene oxide.
[0046] A kind of preparation method of water body pollution remediation agent, the preparation method of described water body pollution remediation agent is:
[0047] (1) Immerse graphene oxide in an ammoniumazide solution 10 times the mass of graphene oxide, sonicate at 40kHz and 200W and heat to 120°C. After reacting until no gas escapes, centrifuge and wash with absolute ethanol 5 times, dried to constant weight, prepared pre-modified graphene oxide;
[0048] (2) Disperse disodium edetate in deionized water with 10 times the mass of disodium edetate to obtain a disodium edetate dispersion, and mix the pre-modified graphene oxide suspension with The disodium edetate dispersion was mixed at a mass ratio of 2:1, ultrasonicated at 40kHz and 200W for 2h, transferred to a drying oven, dried at 60°C to constant we...
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Abstract
The invention discloses a water bodypollution repairing agent and a preparation method thereof, and relates to the field of water pollution treatment. When the water bodypollution repairing agent is prepared, the repairing agent is woven by modified chitosan fibers for water pollution repairing; the chitosan fibers are prepared through electrostatic spinning, then the chitosan fibers are blended with modified grapheneoxide, dopamine and citric acid are added, the modified chitosan fibers are prepared, the mechanical property of the fibers is improved, and adsorption of heavy metal ions in a water body is accelerated; the modified grapheneoxide is prepared by firstly reacting grapheneoxide with disodium ethylenediamine tetraacetate and then reacting with ammoniumazide, and the graphene oxide is aminated to the maximum extent, so that the modified graphene oxide has relatively strong electronegativity; and the water body pollution repairing agent prepared by the preparation method not only has excellent mechanical properties, but also has relatively strong adsorption capacity and can be repeatedly utilized.
Description
technical field [0001] The invention relates to the field of water pollution control, in particular to a water body pollution restoration agent and a preparation method thereof. Background technique [0002] With the rapid growth of the national economy and the remarkable improvement of the living standards of the people, great progress has been made in environmental protection through unremitting efforts, but the severe situation of the water environment has not fundamentally changed in general. The main reason is that the discharge of pollutants exceeds the carrying capacity of the water environment, the water pollution of rivers, the eutrophication of lakes, the serious ecological damage, the reduction of biodiversity, and the degradation of ecosystem functions, which restrict economic and social development, endanger people's health, and affect social and environmental security. [0003] Therefore, controlling water environmental pollution is not only beneficial to impro...
Claims
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Application Information
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