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Copper zinc alloy metal nano-filtration membrane and preparation method thereof

A nanofiltration membrane and alloy technology, applied in chemical instruments and methods, metal material coating technology, membrane technology, etc., can solve problems such as deterioration of water quality, increase of plasma solubility, etc., and achieve good results and environmental friendliness

Active Publication Date: 2011-08-10
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this invention is that the introduction of metal sources as compounds of these metals such as silver nitrate, copper sulfate, etc. will easily carry a large amount of harmful anions in the porous material. When this water purification material is used to purify water, it will make the purification NO in water after 3 -1 , SO 4 -2 Plasma solubility is greatly increased, making the purified water worse

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Using ordinary filter ceramic tubes as the substrate, the preparation process of a copper-zinc alloy metal nanofiltration membrane is as follows:

[0021] 1) Put the ordinary filter ceramic tube into the PVD vacuum equipment for vacuuming, when the vacuum degree reaches 10 -2 When cleaning and activating (plasma glow) the ordinary filter ceramic tube, the process conditions are ion source current 0.3A, bias voltage 150V, duty cycle 80%, argon flow rate 100SCCM, oxygen flow rate 150SCCM, vacuum pressure in the furnace 0.3Pa, the activation time is 10 minutes, in order to achieve the purpose of cleaning and activating the surface of the substrate, and improve the bonding force between the antibacterial dechlorination film and the substrate.

[0022] 2) PVD (Physical Vapor Deposition) plating of copper-zinc alloy nanofiltration membranes with antibacterial and chlorine-removing properties is performed on ordinary filter ceramic sheets. The vacuum pressure is 0.1 Pa, and t...

Embodiment 2

[0025] The preparation process of a copper-zinc alloy metal nanofiltration membrane is as follows:

[0026] 1) Put the ordinary filter ceramic piece into the PVD vacuum equipment and carry out vacuuming. When the vacuum degree reaches 10 -2 When cleaning and activating the ordinary ceramic tube (plasma glow), the process conditions are ion source current 0.5A, bias voltage 150V, duty cycle 80%, argon flow rate 10SCCM, oxygen flow rate 50SCCM, vacuum pressure in the furnace 0.1 Pa, the activation time is 5 minutes, in order to achieve the purpose of cleaning and activating the surface of the substrate, and improve the binding force between the antibacterial dechlorination film and the substrate.

[0027] 2) PVD (Physical Vapor Deposition) plating of copper-zinc alloy nanofiltration membranes with antibacterial and chlorine-removing properties is performed on ordinary filter ceramic sheets. The vacuum pressure is 0.3 Pa, and the coating time is 20 minutes); the thickness of the...

Embodiment 3

[0030] The preparation process of a copper-zinc alloy metal nanofiltration membrane is as follows:

[0031] 1) Put the ordinary filter ceramic piece into the PVD vacuum equipment and carry out vacuuming. When the vacuum degree reaches 10 -2 When cleaning and activating the ordinary ceramic tube (plasma glow), the process conditions are ion source current 0.3A, bias voltage 120V, duty cycle 70%, argon flow rate 20SCCM, oxygen flow rate 100SCCM, furnace vacuum pressure 0.2 Pa, the activation time is 8 minutes, in order to achieve the purpose of cleaning and activating the surface of the substrate, and improve the bonding force between the antibacterial dechlorination film and the substrate.

[0032] 2) PVD (Physical Vapor Deposition) plating of copper-zinc-silver alloy nanofiltration membrane with antibacterial and chlorine-removing properties on ordinary filter ceramics, the process conditions of the frequency sputtering method: intermediate frequency power supply 6KW, bias vol...

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Abstract

The invention discloses a copper zinc alloy metal nano-filtration membrane and a preparation method thereof, and relates to a novel water purification material. The copper zinc alloy metal nano-filtration membrane comprises the following components: 40 to 50 percent of copper and 50 to 60 percent of zinc, or 80 to 90 percent of copper and 20 to 10 percent of zinc. The preparation method comprisesthe following steps of: putting a base material into physical vapor deposition vacuum equipment, vacuumizing, and cleaning and activating the base material; and performing physical vapor deposition on the base material, and plating the copper zinc alloy nano-filtration membrane on the base material. The nano-filtration membrane has the functions of bacteria resistance, chlorine removal and the like, has no ions of NO3<-1>, SO4<-2> and the like, and does not cause secondary pollution to water; and the nano-filtration membrane has high efficiency of removing residual chlorine and harmful heavy metal ions such as lead ions, mercury ions, hexavalent chromium, arsenic ions and the like in water, and has good effect. The removal rate of the residual chlorine reaches over 95 percent; the removalrates of the heavy metal ions Pb<2+>, Hg<2+>, Cd<2+>, Cr<6+> and As<5+> reach over 99 percent; and the antibacterial rate reaches over 99.99 percent. The production process is environment-friendly, and no waste water is drained.

Description

technical field [0001] The invention relates to a novel water purification material, in particular to a copper-zinc alloy metal nanofiltration membrane and a preparation method thereof. Background technique [0002] With the development of society and the improvement of living standards, people's requirements for quality of life are getting higher and higher, and the impact of clean and safe drinking water on people's quality of life cannot be ignored. Water is the main carrier for the transmission of various germs, and 80% of human diseases are related to water pollution. Access to clean and safe drinking water has become a hot topic worldwide. On the other hand, water pollution is becoming more and more serious. Surface water such as rivers and lakes and groundwater in some areas are polluted to varying degrees. The problem of water shortage has attracted widespread attention. [0003] The main pollutants in drinking water are soluble heavy metal ions, arsenic ions, trac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/02B01D67/00B01D69/10C23C14/32C23C14/34C23C14/18C22C9/04C22C18/02
Inventor 余水邓小辉李明仁
Owner XIAMEN RUNNER IND CORP
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