Preparation method of mesoporous potamogeton pectinatus adsorption material for heavy metal ions

A technology for heavy metal ions and adsorption materials is applied in the field of preparation of heavy metal ion adsorption materials for mesoporous L. chinensis. Improve, improve the utilization rate, improve the effect of adsorption performance

Inactive Publication Date: 2016-12-07
吴迪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: most of the common modification methods for natural adsorption materials are hydrothermal modification, chemical modification and physical modification methods, but these methods can only change the surface properties of substances and improve the adsorption effect , but the internal structure of the substance cannot be changed, resulting in the waste of adsorption materials, low utilization rate, and the disadvantages that the adsorption performance cannot be improved as a whole. A preparation method for the adsorption material of heavy metal ions of mesoporous asparagus is provided. The stems of the mustard vegetable are used as raw materials, soaked in water so tha

Method used

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Examples

Experimental program
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Effect test

Example Embodiment

[0018] Example 1

[0019] Weigh 400g of the stalks of Longxian stalks and cut them into 3cm pieces. According to the solid-to-liquid ratio of 1:5, immerse the small pieces of longxian stalks in deionized water, and immerse them overnight at 200W with an ultrasonic oscillator. , Remove the soaked stalks, spray and freeze with liquid nitrogen for 1 min, wait for it to naturally return to room temperature, repeat the water soaking and freezing treatments 3 times according to the aforementioned steps, to obtain the mesoporous longhair stalks for use; The stalks of Potentilla serrata were added to 8 times its total mass in anhydrous methanol, placed on a shaker and immersed for 6 hours, filtered and separated to obtain the filter residue, rinsed with deionized water for 3 times and then dried naturally to obtain the pretreatment medium. The stems and stalks of Potentilla serrata, set aside; weigh 1kg of garcinia cambogia peel into an iron pot, add distilled water to the pot until the ...

Example Embodiment

[0021] Example 2

[0022] Weigh 450g of the stalks of Longxian stalks and cut them into 4cm pieces. According to the solid-liquid ratio of 1:5, immerse the small portions of the stalks of Longxian stalks in deionized water, and immerse them overnight at 250W with an ultrasonic oscillator. , Remove the soaked stalks, spray and freeze with liquid nitrogen for 1 min, wait for it to naturally return to room temperature, repeat the water soaking and freezing treatments for 4 times according to the aforementioned steps, to obtain the mesoporous longhair stalks for use; The stalks of Potentilla serrata were added to 9 times the total mass of anhydrous methanol, placed on a shaker and immersed for 7 hours, filtered and separated to obtain the filter residue, washed with deionized water for 4 times and then dried naturally to obtain the pretreatment medium. The stems and stems of porphyra vulgaris, set aside; Weigh 1kg of garcinia cambogia peel into an iron pot, add distilled water to the...

Example Embodiment

[0024] Example 3

[0025] Weigh 500g of the stalks of Longxian stalks and cut them into 5cm sections. According to the solid-liquid ratio of 1:5, immerse the small portions of the stalks of Longxian stalks in deionized water, and immerse them overnight at 300W with an ultrasonic oscillator. , Remove the soaked stalks, spray and freeze with liquid nitrogen for 2 minutes, wait for it to naturally return to room temperature, repeat the water soaking and freezing treatments for 5 times according to the previous steps, to obtain the mesoporous longhair stalks for use; The stalks of Potentilla serrata were added to 10 times its total mass in anhydrous methanol, placed on a shaker and immersed for 8 hours, filtered and separated to obtain the filter residue, rinsed repeatedly with deionized water for 5 times and then naturally dried to obtain the pretreatment medium. The stems and stalks of the porphyra vulgaris, set aside; Weigh 2kg of the garcinia cambogia peel into an iron pan, add d...

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Abstract

The invention relates to a preparation method of a mesoporous potamogeton pectinatus adsorption material for heavy metal ions, and belongs to the field of adsorption material preparation. According to the invention, Potamogeton pectinatus stems are taken as raw materials, and soaked in water to enable deionized water enter into inner pores of the stems, and quickly frozen by liquid nitrogen to enable water in the pores of the stems frozen, inner apertures of the stems are widened to increase porosities by using an ice splitting effect, namely the principle that water freezes to increase volume, then adsorption sites of the stems are treated by methanol to be fully exposed, the number of active groups on the surfaces of the stems and in the inner pores is further increased through composite fermentation modification of hydroxycitric acid in a garcinia cambogia extracting solution and microorganisms in biogas liquid to increase the adsorption rate of the stems, finally freeze drying is carried out to obtain the adsorption material. The method disclosed by the invention not only changes surface properties of the potamogeton pectinatus stems, but also changes the internal structures of the stems to improve adsorption properties of the stems so as to facilitate more thorough adsorption, thus the adsorption material can be thoroughly utilized, and the utilization rate of the adsorption material is increased.

Description

technical field [0001] The invention relates to a preparation method of a mesoporous longan longan japonica heavy metal ion adsorption material, which belongs to the field of adsorption material preparation. Background technique [0002] Asparagus longan, also called linear eye vegetable, is a perennial submerged herb that is widely distributed all over the world and has good environmental adaptability. It can be used as feed for fish and ducks, and can also be used as medicine. It has the effect of clearing away heat and detoxifying. The good bioaccumulation of heavy metals in the water body by Longan zilong has attracted the attention of scholars at home and abroad, and the adsorption characteristics of longan zi ion adsorption potential, but its adsorption performance needs to be improved. Asparagus is rich in fiber and protein components, and the main functional groups in these components that can be combined with metal ions are carboxyl, phosphoryl, hydroxyl, sulfate, ...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/62
CPCB01J20/24C02F1/286C02F2101/20
Inventor 吴迪林茂平
Owner 吴迪
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