Organic anion intercalated patina material and preparation method and application thereof

An organic anion and anion technology, applied in the field of wastewater treatment agent containing organic pollutants, organic pollutants Fenton treatment, wastewater treatment agent, to achieve the effect of short time, simple method and easy operation

Inactive Publication Date: 2015-09-16
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on organic green rust is limited to the direct reductive degradation of organic matter, and there is no report on the degradation of organic pollutants by the Fenton-like system formed by it and hydrogen peroxide

Method used

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  • Organic anion intercalated patina material and preparation method and application thereof
  • Organic anion intercalated patina material and preparation method and application thereof
  • Organic anion intercalated patina material and preparation method and application thereof

Examples

Experimental program
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Embodiment 1

[0023] In this example, see Figure 1~Figure 3 , a method for preparing an organic anion-intercalated patina material, comprising the steps of:

[0024] a. Under the protection of inert gas, using fresh oxygen-free deionized water as solvent, weigh 1.9994g Fe 2 (SO 4 ) 3 and 5.5604 g FeSO 4 ·7H 2 O and dissolved in 100mL anaerobic deionized water respectively, the ferrous sulfate solution and the ferric sulfate solution were formulated into a mixed solution A containing metal cations, and the NaOH solution with a concentration of 1mol / L was used as B, and 3.4848g DBS was weighed and dissolved In 100mL oxygen-free deionized water, prepared with Fe 3+ Organic anion solution C with the same number of moles;

[0025] b. Continue to use the four-neck flask as the reaction vessel under the protection of inert gas. The four ports of the flask are respectively connected to two constant pressure funnels, a pH electrode and an inert gas vent. The four ports of the flask are respec...

Embodiment 2

[0029] This embodiment is basically the same as Embodiment 1, especially in that:

[0030] In this embodiment, a method for preparing an organic anion-intercalated green rust material comprises the following steps:

[0031] a. Under the protection of inert gas, using fresh oxygen-free deionized water as solvent, weigh 1.9994g Fe 2 (SO 4 ) 3 and 5.5604 g FeSO 4 ·7H 2 O and dissolved in 100mL oxygen-free deionized water respectively, the ferrous sulfate solution and the ferric sulfate solution were formulated into a mixed solution A containing metal cations, and the NaOH solution with a concentration of 1mol / L was used as B, and 3.4848g SDS was weighed and dissolved In 100mL oxygen-free deionized water, prepared with Fe 3+ Organic anion solution C with the same number of moles;

[0032] b. This step is the same as the first embodiment.

[0033] Use Congo red and fresh anaerobic deionized water to prepare simulated organic wastewater with a concentration of 20mg / L, take 50...

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Abstract

The invention discloses an organic anion intercalated patina material and a preparation method and application thereof and relates to preparation of organic patina which is an organic anion intercalated layered double metal hydroxide, namely organic patina. The organic anion intercalated patina is synthesized through a coprecipitation method; on the basis of the principle of the Fenton effect between Fe<2+> in the patina structure and H2O2, hydroxyl radicals with strong oxidizing property can be generated and used for degrading and removing organic pollutants in a water body. According to the invention, organic anion intercalated patina is synthesized by a relatively simple method; by virtue of the Fenton effect between the patina and H2O2, organic pollutants can be effectively degraded and removed within a short time, and secondary pollution to the environment is hardly caused; moreover, the structure of the organic patina can be maintained after the reaction.

Description

technical field [0001] The invention relates to a wastewater treatment agent, its preparation method and its application method, in particular to a wastewater treatment agent containing organic pollutants, its preparation method and its organic pollutant Fenton treatment method, which is applied to the technical field of functional materials and water treatment technology. Background technique [0002] In recent years, with the development of industry and agriculture, the quality of the environment has deteriorated day by day, and the pollution of organic matter in water has become a more prominent environmental problem. [0003] Green rust (Green rusts, GR) is an intermediate transition product of metal iron corrosion. Structurally, green rust is composed of Fe 2+ and Fe 3+ The composed hydroxide belongs to the layered double metal hydroxide, which is a thin columnar sheet structure with a hexagonal bottom. The positive and negative charge layers are interlaced and stacke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72
Inventor 阮秀秀徐楠楠程玲陈雨涵陈桦
Owner SHANGHAI UNIV
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