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A kind of preparation method and application of phenol degradation agent containing double metal oxide

A technology for the degradation of bimetallic oxides and phenol, applied in the field of water pollution control, can solve the problems of poor material repeatability, secondary environmental pollution, and the degradation rate of phenol needs to be improved, and achieves stable performance, high reuse rate, and improved degradation efficiency. and speed effect

Active Publication Date: 2022-04-08
CHINA TOBACCO JIANGSU INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to their own instability, these bimetallic materials will release metal ions during the degradation process, causing secondary pollution to the environment and resulting in poor material repeatability; The degradation rate also needs to be improved

Method used

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  • A kind of preparation method and application of phenol degradation agent containing double metal oxide
  • A kind of preparation method and application of phenol degradation agent containing double metal oxide
  • A kind of preparation method and application of phenol degradation agent containing double metal oxide

Examples

Experimental program
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Effect test

Embodiment 1

[0035] FeCl 3 ·6H 2 O and MnSO 4 ·H 2 O dissolved in deionized water, FeCl 3 ·6H 2 O and MnSO 4 ·H 2 The molar ratio of O was 1:1, and thiourea was slowly added under stirring condition, and the stirring was continued for 60 min. Ammonia water was added to the mixed solution to adjust the pH to 9, and the stirring was continued for 60 min. The solution was transferred to a reaction kettle, the temperature of the reaction kettle was 180° C., and the reaction time was 16 hours. After the solution was filtered and dried, the material was calcined under the protection of nitrogen, the calcining temperature was 400°C, and the calcining time was 4h.

Embodiment 2

[0037] FeCl 3 ·6H 2 O and MnSO 4 ·H 2 O dissolved in deionized water, FeCl 3 ·6H 2 O and MnSO 4 ·H 2 The molar ratio of O was 2:1, and thiourea was slowly added under stirring conditions, and the stirring was continued for 60 min. Ammonia water was added to the mixed solution to adjust the pH to 10, and the stirring was continued for 60 min. The solution was transferred to a reaction kettle, the temperature of the reaction kettle was 160° C., and the reaction time was 20 hours. After the solution was filtered and dried, the material was calcined under the protection of nitrogen, the calcining temperature was 300° C., and the calcining time was 2 h.

Embodiment 3

[0039] FeCl 3 ·6H 2 O and MnSO 4 ·H 2 O dissolved in deionized water, FeCl 3 ·6H 2 O and MnSO 4 ·H 2 The molar ratio of O was 1.5:1, and thiourea was slowly added under stirring conditions, and the stirring was continued for 60 min. Ammonia water was added to the mixed solution to adjust the pH to 9.5, and the stirring was continued for 60 min. The solution was transferred to a reaction kettle, the temperature of the reaction kettle was 200° C., and the reaction time was 18 hours. After the solution was filtered and dried, the material was calcined under the protection of helium, the calcining temperature was 450°C, and the calcining time was 4h.

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Abstract

A preparation method of a phenol degradation activator containing double metal oxides disclosed by the present invention comprises the following steps: S1. putting a sulfur source into an aqueous solution containing a ferric ion source and a divalent manganese ion source, adding a weak base to adjust pH to 9-10, stirring and reacting to obtain a mixed solution; S2. filtering and drying the mixed solution, calcining under an inert gas environment, and the obtained nano-scale sulfur-doped manganese-iron double metal oxide is the phenol degradation activator, The activator has strong repeatability and stability, effectively strengthens the ability of activating peroxymonosulfate, and improves the degradation rate and speed of phenol.

Description

technical field [0001] The invention relates to the field of water pollution control, in particular to a preparation method and application of a phenol degradation activator containing double metal oxides. Background technique [0002] As an important chemical intermediate, phenol is widely used in the production of dyes, pesticides and pharmaceuticals. Phenol is a highly harmful pollutant. During the production and application of phenol, the unreasonable discharge of phenol wastewater has caused a huge threat to the environment and human health. There are many reports on its treatment methods at home and abroad. Persulfate advanced oxidation technology is a kind of advanced oxidation technology developed in recent years. The persulfate activation technology based on sulfate radical can oxidize and remove the refractory organic pollutant phenol. [0003] The activation method of persulfate includes thermal activation method, ultraviolet light activation method, transition m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/889C02F101/34
CPCC02F1/58C02F2101/345
Inventor 李炜王珂清沈晓晨张媛袁益来朱莹
Owner CHINA TOBACCO JIANGSU INDAL