Magnetic nanoscale oil absorption material as well as preparation method and application thereof

Abstract

The invention provides a magnetic nanoscale oil absorption material as well as a preparation method and an application thereof. The preparation method of the magnetic nanoscale oil absorption material comprises the following steps: 1) raw materials are mixed in weight proportion as follows: 4-8 parts of water-soluble sugar, 3-7 parts of water-soluble iron salt, 0-0.55 parts of concentrated sulfuric acid and 30-80 parts of water; 2) a solution obtained through mixing is placed in an aerosol sprayer, and sprayed droplets are driven by inert carrier gas to enter a tube furnace to be heated for a reaction; 3) a material obtained through the reaction in the step 2) is filtered, and the magnetic nanoscale oil absorption material is obtained. The preparation method of the magnetic nanoscale oil absorption material is simple and easy to implement, and the raw materials are easily available, non-toxic and widely sourced; the prepared magnetic nanoscale oil absorption material has a good oil absorption effect, absorbed oil and the material can be both recycled, and secondary pollution is avoided.

Description

technical field [0001] The invention relates to material technology, in particular to a magnetic nanometer oil-absorbing material, its preparation method and application. Background technique [0002] Petroleum is the blood of industry. The development of social economy and the progress of human civilization are inseparable from petroleum and petroleum products. However, with the process of oil extraction, transportation, processing, storage, etc., the leakage of oil and oil products will inevitably occur. Crude oil spills not only pollute the ocean and freshwater systems, destroy the ecological environment, but also endanger human beings through the food chain. Especially offshore oil spills (such as the oil spill in the Gulf of Mexico), the damage caused by it has the characteristics of wide spread, high degree of harm, difficult follow-up treatment and high treatment cost. Treatment with oil-absorbing materials is one of the effective methods to deal with oil spills, an...

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Problems solved by technology

The current synthesis methods of magnetic nanocomposites are mainly hydrothermal method, co-sedimentation and other methods. The synthesis conditions are harsh and the process is complicated. Most of the raw materials used include organic polymer materials. Their ecotoxicity is unknown, and surface modification of materials is often required. In order to obtain hydrophobicity, it may cause secondary pollution to the environment

Moreover, due to the structural properties of traditional oil-absorbing materials, their oil absorption capacity is not large enough, and their oil-water selectivity is not high. They often absorb oil and water at the same time, and their service life is short.

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