Mesoporous nanometer material and method for recycling diosgenin from waste liquor by same

A technology of nanomaterials and turmeric saponin, which is applied in nanotechnology, nanotechnology, separation methods, etc., can solve the problems of cumbersome biochemical combination treatment methods, and achieve the effect of not being prone to secondary pollution, rapid adsorption process, and large adsorption capacity

Inactive Publication Date: 2013-08-21
陕西省环境科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Another object of the present invention is to provide a method for using the mesoporous silicon nanomaterials to reclaim turmeric saponin in waste liquid. This method solves the complicated problem of biochemical combination treatment methods used today, and is simple to operate, economical and environmentally friendly.

Method used

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  • Mesoporous nanometer material and method for recycling diosgenin from waste liquor by same
  • Mesoporous nanometer material and method for recycling diosgenin from waste liquor by same

Examples

Experimental program
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Embodiment 1

[0030] 1) Material synthesis: Disperse 1g of triblock copolymer P123 in a mixed solution of 4mL of 1.0mol / L KCl and 35mL of 0.2mol / L HCl, let it stand at 40°C for 24h, and after aging at 100°C for 24h, wash and filter to synthesize PMO Mesoporous Nanomaterials. The specific surface area and pore volume of the mesoporous material are calculated by Brunauer-Emmett-Teller (BET), the pore diameter is 5-10nm, and the specific surface area is 1100m / g.

[0031] 2) Modification: Take 100mg of PMO mesoporous nanomaterials and 1mL of C 8 Silane was heated to reflux in 100mL toluene solvent for 24 hours to modify the mesoporous silicon nanomaterials.

[0032] 3) Static adsorption: Add 2 g of the modified PMO mesoporous silicon nanomaterials to 50 mL of waste liquid containing 2% turmeric saponin, and keep stirring for 3 h until the saponin in the solution is completely absorbed. The solid-liquid two-phase is separated by filtration to obtain the solid-phase material adsorbed with sapon...

Embodiment 2

[0035] 1) Material synthesis: Disperse 2g of triblock copolymer P123 in a mixed solution of 5mL of 1.0mol / L KCl and 40mL of 0.2mol / L HCl, let it stand at 40°C for 24h, and after aging at 100°C for 24h, wash and filter to synthesize PMO Mesoporous Nanomaterials. The mesopore diameter is 5-10nm and the specific surface area is 1120m / g as measured by BET method.

[0036] 2) Modification: Take 200mg of PMO mesoporous nanomaterials and 2mL of C 8 The silane was heated to reflux in 200ml of toluene solvent for 24 hours to modify the mesoporous silicon nanomaterial.

[0037] 3) Static adsorption: Add 5 g of modified PMO mesoporous silicon nanomaterials to 100 mL of waste liquid containing 2% turmeric saponin, and keep shaking for 4 hours. The solid-liquid two-phase is separated by filtration to obtain the solid-phase material adsorbed with saponin, and further eluted to obtain a pure solution containing saponin.

[0038] 4) Elution: The separated solid-phase material is used to el...

Embodiment 3

[0040] The adsorbed liquid is waste liquid containing 2wt% turmeric saponin, a total of 500mL. see process figure 1 , steps 1) and 2) are the same as in Example 1.

[0041] 3) Adsorption (elution) column The adsorption (elution) column is made of a glass tube. Glass fibers are placed at both ends of the column to prevent the material from seeping out. The column is filled with 2g of modified PMO mesoporous silicon nanoparticles. Drive away the air bubbles between the solid particles, and use a peristaltic pump to control the flow rate to 2mL / min, so that the turmeric saponin contained in the solution is completely absorbed by the PMO mesoporous silicon nanomaterial.

[0042] 4) Elution: After the adsorption is completed, the saponin is eluted with gasoline of the same volume as the waste liquid, and the obtained solution is the eluent containing saponin. After concentration, crystallization and purification, pure saponin is obtained. After the elution is complete, the PMO me...

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Abstract

The invention provides a mesoporous nanometer material. The mesoporous nanometer material is prepared of the following methods that: (1) dispersing triblock copolymer polyethylene oxide-polypropylene oxide-polyethylene oxide in a mixed solution of KCl and HCl, and performing standing and ageing as well as washing and filtering on the solution to obtain a PMO mesoporous silicon nanometer material; (2) modifying the PMO mesoporous silicon nanometer material, and inoculating long-chain octyl into the modified material. The invention further provides application of the mesoporous nanometer material to recycling of diosgenin from waste liquor. The PMO mesoporous silicon nanometer material provided by the invention is easy to modify, the synthesis process is simple, the cost is low and the practical popularization is easy to realize. Compared with existing methods for recycling the diosgenin, the organically modified mesoporous nanometer material is a non-toxic and environment-friendly composite material for purifying waste water. The method provided by the invention is high in adsorption speed, high in adsorption rate and large in adsorption quantity, the adsorption process is fast and efficient, and the mesoporous material can be recycled.

Description

technical field [0001] The invention belongs to the field of applied materials, and in particular relates to a silicon-containing mesoporous nanometer material and its application. Background technique [0002] Turmeric is the kind with the highest content of diosgenin in the yam plant in the world, and it is the best material for producing saponin. And turmeric saponin is a substance with high medicinal value, and it is an important raw material for the synthesis of steroid hormone drugs in the modern pharmaceutical industry. Saponin has the effect of estrogen, which can lower cholesterol, relieve cough, eliminate phlegm, desensitize, restore diseased tissue, and stimulate heparin cells and bile secretion. It can also be used as a semi-synthetic raw material for steroidal anti-inflammatory drugs, sex hormones, and female contraceptives. [0003] In recent years, the steroid hormone drug industry has shown good development prospects on a global scale. Since the 1990s, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B82Y30/00B01D15/00C07J71/00
Inventor 黄华宇张慧月白万乔梁蓓郭睿杜利劳张静孙长顺张振文
Owner 陕西省环境科学研究院
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