Boron-doped diamond film and preparation method thereof, oil-water separation element, water treatment electrode and preparation method thereof and water treatment device

Abstract

The invention provides a boron-doped diamond film and a preparation method thereof, an oil-water separation element, a water treatment electrode and a preparation method thereof and a water treatmentdevice, and relates to the technical field of diamond films. The boron-doped diamond film comprise a boron-doped diamond micrometer layer and a boron-doped diamond nanometer layer; the surface of theboron-doped diamond micrometer layer is provided with convex micrometer particles; the boron-doped diamond nanometer layer is formed on the surface of the boron-doped diamond micrometer layer, and thesurface of the boron-doped diamond nanometer layer is provided with nanometer particles; and the boron-doped diamond micrometer layer and the boron-doped diamond nanometer layer form a lotus leaf-like multilevel micro-nano structure. The boron-doped diamond film has the lotus leaf-like multilevel micro-nano structure, a bionic superhydrophobic surface is formed, the filtering function and the electrocatalytic water purification function are taken into account concurrently, and a foundation is laid for development of a new-generation field living water supply system.

Description

technical field [0001] The invention relates to the technical field of diamond films, in particular to a boron-doped diamond film and a preparation method thereof, an oil-water separation element, a water treatment electrode and a preparation method thereof, and a water treatment device. Background technique [0002] During battlefield or disaster rescue, due to the constraints of transportation and other factors, it is often difficult to guarantee the drinking water supply and sanitation of the troops. When the supply in the rear is insufficient, the drinking water mainly depends on the local water source and takes water locally. Water sources that can be used as drinking water in the wild mainly include mountain springs, streams, lakes, and natural rainfall. However, these water sources often contain a large number of germs, organic waste and other harmful substances to the human body. They must be purified before drinking, otherwise they will cause many diseases. , affect...

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Problems solved by technology

[0004] At present, the existing small portable water purifiers available in the market in our country have the following defects: the water purification device and the water storage device are set separately, and the equipment is complicated; the water purification pot is too large and heavy, so it is not easy to carry; As the core filter element, the filter element is relatively large, it is not easy to replace, and the water purification effect is not good, and the impurities and pollutants in the water cannot be completely removed, which poses a threat to human health, etc.

Although these methods can improve the efficiency of water purification and the service life of the water purifier to a certain extent, the composition of the sewage in the harsh environment is complex, the chemical oxygen demand is high, and it often has strong acidity or strong alkalinity, which leads to the separation of ordinary separation membranes. There are fatal shortcomings such as poor corrosion resistance, poor thermal stability, easy pollution, difficult to clean and cannot be reused, which limits its application in sewage treatment

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