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Portable outdoor direct drinking water-purifying film and preparation method thereof

A water purification membrane, portable technology, used in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc. The effect of small mass and simple preparation method

Inactive Publication Date: 2012-10-31
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the commonly used water purification devices are large-scale water purifiers, such as RO reverse osmosis water purifiers and ultrafiltration membrane water purifiers, etc., which are large in quality and bulky and inconvenient to carry. There are still a lot of gaps in the field of outdoor water purification equipment with strong water purification capabilities

Method used

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  • Portable outdoor direct drinking water-purifying film and preparation method thereof
  • Portable outdoor direct drinking water-purifying film and preparation method thereof
  • Portable outdoor direct drinking water-purifying film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Prepare a portable outdoor direct drinking water purification membrane according to the following steps:

[0028] 1. Get 0.001 gram of silver-containing trimolybdate nanowires (chemical formula is (NH 4 ) 2-x Ag x Mo 3 o 10 , x=0.58) is put into the beaker that 100 milliliters of deionized water are housed;

[0029] 2. Place the beaker on the stirring table and set the stirring speed to 50 revolutions per minute;

[0030] After 3.5 minutes, the beaker was removed from the stirring table, and the liquid in the beaker at this time was a suspension containing silver trimolybdate nanowires in water;

[0031] 4. Take a piece of disc non-woven medical gauze with a diameter of 3 cm, place it in the suspension prepared in step 3, and fully contact the suspension for 3 minutes;

[0032] 5. Take out the non-woven medical gauze and let it dry at room temperature;

[0033] 6. Take out two filter papers that have been sterilized and have the same size as non-woven medical gau...

Embodiment 2

[0036] Prepare a portable outdoor direct drinking water purification membrane according to the following steps:

[0037] 1. Get 0.001 gram of silver-containing trimolybdate nanowires (chemical formula is (NH 4 ) 2-x Ag x Mo 3 o 10 , x=0.58) is put into the beaker that the deionized water of 10 milliliters is housed;

[0038] 2. Place the beaker on the stirring table and set the stirring speed to 50 revolutions per minute;

[0039] 3. Then add the 10 ml silver-containing trimolybdate suspension evenly dropwise on a piece of filter paper, and let it stand at room temperature until it dries;

[0040] 4. Take out two filter papers that have been sterilized and have the same size as the original filter paper sheets described in step 3, sandwich the original filter paper sheets that carry silver-containing trimolybdate nanowires with two filter papers, and then package them;

[0041] 5. The finished product after packaging is a portable outdoor direct drinking water purification...

Embodiment 3

[0043] The water purification effect detection experiment of the portable outdoor direct drinking water purification membrane prepared in embodiment 1:

[0044] 1. Collect wild lake water (Peking University unnamed lake water).

[0045] 2. Place the water purification film prepared in Example 1 on the funnel, add a certain amount of deionized water to moisten it and make it close to it. Fix a glass test tube under the funnel with transparent tape to collect the filtered lake water.

[0046] 3. Insert the funnel and the test tube into a glass flask, connect the flask to an aspirator, and use mechanical suction to filter. Use a dropper to draw water from Weiming Lake, and drop it on the filter membrane at an even speed. The lake water is treated by the water purification membrane and then dropped into the test tube.

[0047] 4. Use wild lake water, filtered water in a test tube, and sterile deionized water as three control groups. Among them, the field lake water and filtered ...

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Abstract

The invention discloses a portable outdoor direct drinking water-purifying film and a preparation method thereof. The water-purifying film is prepared by uniformly dispersing nano silver-containing molybdate on a flexible sheet-like water-permeating material, and water permeating the water-purifying film is sterilized and purified by utilizing the antibacterial property of the nano silver-containing molybdate, so that a simple and portable water purification method is implemented. The outdoor water purification and directing drinking effect can be achieved without buying complete water purification equipment.

Description

technical field [0001] The invention relates to the biological application of nanomaterials in antibacterial aspects, in particular to a novel portable outdoor direct-drinking water purification film and a preparation method thereof, which belongs to the emerging application of nanotechnology in the field of water purification. Background technique [0002] Water treatment refers to the process of removing certain substances in water according to specific requirements through physical and chemical methods. Water is closely related to social production and life, but the water needed in production and life is often not directly obtained from nature. Bacteria and algal organisms that can cause human diseases often exist in natural water. Therefore, water treatment is very important to human society and involves a wide range of applications. Nowadays, there are more and more people hiking in the wild. In an environment far away from artificial water purification, how to obtain ...

Claims

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Application Information

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IPC IPC(8): C02F1/00C02F1/50B32B9/06
Inventor 蒋玉洁薛炯微冮鑑叶剑文
Owner PEKING UNIV
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