Method for synthesizing water soluble nanometer iron through mangosteen pericarp in environment-friendly mode and application of water soluble nanometer iron

A mangosteen peel, green synthesis technology, applied in the application field of catalytic degradation dyes, can solve problems such as refractory degradation, toxicity, environmental pollution, etc., and achieve the effects of strengthening resource utilization and simple process

Active Publication Date: 2014-06-25
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the azo bond and benzene ring structure, and many of the azo dyes and their degradation intermediates are toxic and refractory substances, they will cause serious pollution to the environment.

Method used

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  • Method for synthesizing water soluble nanometer iron through mangosteen pericarp in environment-friendly mode and application of water soluble nanometer iron
  • Method for synthesizing water soluble nanometer iron through mangosteen pericarp in environment-friendly mode and application of water soluble nanometer iron
  • Method for synthesizing water soluble nanometer iron through mangosteen pericarp in environment-friendly mode and application of water soluble nanometer iron

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] At room temperature, add 5 mL of 10% hydrogen peroxide solution to 45 mL of 125 mg / L reactive brilliant blue KN-R solution, then add 1 mL of water-soluble nano-iron dispersion A prepared in this example, shake or stir for 3 hours, and the dye degradation rate reaches 95.52%, the concentration time change graph of the dye is shown in figure 2 .

Embodiment 2

[0046] At room temperature, add 5 mL of 10% hydrogen peroxide solution to 45 mL of 250 mg / L reactive brilliant blue KN-R solution, then add 2 mL of water-soluble nano-iron dispersion B prepared in this example, shake or stir for 3 hours, and the dye degradation rate reaches 98.20%, the concentration time change graph of the dye is shown in image 3 .

Embodiment 3

[0048] At room temperature, add 5 mL of 10% hydrogen peroxide solution to 45 mL of 375 mg / L reactive brilliant blue KN-R solution, then add 3 mL of water-soluble nano-iron dispersion C prepared in this example, shake or stir for 3 hours, and the dye degradation rate reaches 99.05%, the concentration time change diagram of the dye is shown in Figure 4 .

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Abstract

The invention discloses a method for synthesizing water soluble nanometer iron through mangosteen pericarp in an environment-friendly mode and application of the water soluble nanometer iron, and belongs to the technical field of treatment of waste water. The method for preparing water soluble nanometer iron includes the steps that first, the mangosteen pericarp is washed with distilled water, dried, crushed and screened to 300 microns to 600 microns, and after the mangosteen pericarp particles and distilled water are mixed, heated to boiling and cooled to the room temperature, mangosteen pericarp extraction solution is obtained through filtration; second, under the condition of the room temperature, the mangosteen pericarp extraction solution and ferric salt solution are mixed according to a certain proportion, oscillated and shaken up, and then the water soluble nanometer iron is obtained. The water soluble nanometer iron prepared with the method can be used for degrading reactive brilliant blue KN-R and reactive brilliant red K-2G dye in a catalytic mode, and the degrading efficiency is high. The method for environmentally friendly synthesizing water soluble nanometer iron through mangosteen pericarp is simple in technology and low in cost, waste is treated with waste, the utilization of mangosteen pericarp resources is intensified, and dye in the waste water is also removed.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and relates to a method for synthesizing nano-iron using green plants and its application, in particular to a method for synthesizing water-soluble nano-iron greenly using mangosteen peel and its application in catalytic degradation of dyes. Background technique [0002] In recent years, nano-iron has received more and more attention due to its strong activity in the treatment of organic or inorganic pollutants in water. Nano-iron can be synthesized by chemical and physical methods, such as reduction of divalent or ferric iron salts with sodium borohydride, vacuum sputtering, or decomposition of iron precursors in organic solvents. However, these methods are usually expensive, require special equipment, consume a lot of energy, and sodium borohydride or organic solvents are also toxic, corrosive, and flammable. At the same time, the prepared nano-iron is not easy to preserve due to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B82Y40/00B01J23/745C02F1/58
Inventor 高景峰李洪禹司春英
Owner BEIJING UNIV OF TECH
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