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A method and application of using grape seed green to synthesize nanometer zero-valent iron

A nano-zero-valent iron, green synthesis technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, to achieve the effect of increasing added value, strong environmental adaptability, and good effect

Active Publication Date: 2016-08-24
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before the present invention, do not find the report that uses grape seed extract to synthesize nanometer zero valent iron as dispersant and antioxidant

Method used

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  • A method and application of using grape seed green to synthesize nanometer zero-valent iron
  • A method and application of using grape seed green to synthesize nanometer zero-valent iron
  • A method and application of using grape seed green to synthesize nanometer zero-valent iron

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) After washing the grape seeds, dry them at 105°C for 24 hours.

[0045] (2) Grinding the dried grape seeds and sieving to 300-600 μm to obtain grape seed powder.

[0046] (3) The grape seed solution was prepared according to the standard of adding 3 g of grape seed powder per 100 mL of distilled water.

[0047] (4) The grape seed solution was subjected to ultrasonication for 60 min at 20° C. under the condition of ultrasonic power of 250 W, then vacuum filtered, and then filtered through a 0.45 μm filter membrane to obtain a grape seed extract.

[0048] (5) At room temperature, mix the grape seed extract with 0.01mol / L ferrous chloride solution and stir evenly to obtain a mixed solution of ferrous chloride-grape seed extract, wherein the ferrous chloride-grape seed extract The mass fraction of grape seeds in the mixed solution is 0.1wt%.

[0049] (6) According to Fe 2+ :BH 4 The molar ratio is 1:2, the sodium borohydride solution is slowly added to the mixed sol...

Embodiment 2

[0054] (1) After washing the grape seeds, dry them at 105°C for 24 hours.

[0055] (2) Grinding the dried grape seeds and sieving to 300-600 μm to obtain grape seed powder.

[0056] (3) The grape seed solution was prepared according to the standard of adding 3 g of grape seed powder per 100 mL of distilled water.

[0057] (4) The grape seed solution was ultrasonicated for 50 min under the condition of 30° C. and ultrasonic power of 200 W, then filtered by vacuum suction, and then filtered through a 0.45 μm filter membrane to obtain a grape seed extract.

[0058] (5) Under room temperature conditions, the grape seed extract is mixed with 0.03mol / L ferric sulfate solution, and stirred evenly to obtain a mixed solution of ferric sulfate-grape seed extract, wherein the amount of grape seed in the ferric sulfate-grape seed extract mixed solution is The mass fraction is 0.2wt%.

[0059] (6) According to Fe 3+ :BH 4 - Under the condition that the molar ratio is 1:2.5, the sodium...

Embodiment 3

[0064] (1) After washing the grape seeds, dry them at 105°C for 24 hours.

[0065] (2) Grinding the dried grape seeds and sieving to 300-600 μm to obtain grape seed powder.

[0066] (3) The grape seed solution was prepared according to the standard of adding 3 g of grape seed powder per 100 mL of distilled water.

[0067] (4) The grape seed solution was subjected to ultrasonication for 40 min at 40° C. under the condition of ultrasonic power of 150 W, then vacuum filtered, and then filtered through a 0.45 μm filter membrane to obtain a grape seed extract.

[0068] (5) At room temperature, the grape seed extract and Fe 2+ Concentration is the ferrous chloride of 0.05mol / L and the mixed solution of ferrous sulfate is mixed, stir, obtain ferrous chloride, ferrous sulfate-grape seed extract mixed solution, wherein ferrous chloride, ferrous sulfate- The mass fraction of grape seeds in the mixed solution of grape seed extract is 0.3wt%.

[0069] (6) According to Fe 2+ :BH 4 - ...

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Abstract

A method for greenly synthesizing nanometer zero-valent iron by using grape seeds and its application, belonging to the field of nanomaterials and wastewater treatment. The preparation method is characterized in that at room temperature, the waste grape seed extract is used as a dispersant and an antioxidant to prepare nano-zero-valent iron particles, and the nano-zero-valent iron particles prepared by the method of the present invention have good dispersibility and stability sex. The nanometer zero-valent iron particles prepared by the present invention are used to catalyze and degrade reactive dyes in wastewater. Under the condition of dye wastewater pH=2-10, the azo dye reactive brilliant red K‑2G can be degraded by more than 98% within 9 minutes, and anthracene can be degraded by more than 98%. The quinone dye Reactive Brilliant Blue KN‑R degrades more than 95% within 30 minutes, and has strong environmental adaptability and high degradation efficiency. The method of the invention is simple in process, economical and efficient, realizes resource utilization of grape seeds, and the synthesized nanometer zero-valent iron has extremely strong activity and has wide application prospects.

Description

technical field [0001] The invention belongs to the field of nanomaterials and wastewater treatment, and relates to a method for green synthesis of nano-zero-valent iron by using by-products in the wine industry and its application, in particular to a method for green-synthesis of nano-zero-valent iron by using grape seeds and its role in catalytic degradation of wastewater Application of dyes. Background technique [0002] my country is a big country in the dye industry in the world, with an annual output of more than one million tons of dyes, ranking first in the world. According to statistics, in the process of production and treatment, about 10-15% of dyes are discharged into the environment in the form of waste water. According to statistics, the application of azo dyes in the dye industry accounts for 60-70% of the proportion, and there are more than 400 varieties of anthraquinone dyes, which also occupy a very important position in the application of the dye industry...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24C02F1/72B82Y40/00B82Y30/00
Inventor 高景峰李洪禹司春英
Owner BEIJING UNIV OF TECH
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