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Preparation method and application of efficient Fe3O4/FeAlO4 composite coating Fenton-like catalyst

A composite membrane layer, feal2o4 technology, applied in the direction of physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve problems such as poor mechanical properties, difficult separation and recycling of catalysts, etc. , to achieve excellent stability, good application prospects, and simple preparation process

Active Publication Date: 2015-12-30
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems that existing Fenton-like catalysts are difficult to separate and recycle catalysts and have poor mechanical properties, and provide a method for preparing high-efficiency Fe 3 o 4 / FeAl 2 o 4 Method and application of composite membrane layer Fenton-like catalyst

Method used

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  • Preparation method and application of efficient Fe3O4/FeAlO4 composite coating Fenton-like catalyst
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  • Preparation method and application of efficient Fe3O4/FeAlO4 composite coating Fenton-like catalyst

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specific Embodiment approach 1

[0027] Specific implementation mode one: the present implementation mode is a method for preparing high-efficiency Fe 3 O 4 / FeAl 2 O 4 The method of composite membrane layer class Fenton catalyst is to be finished according to the following steps:

[0028] 1. Carbon steel polishing treatment: First, use 500 mesh water abrasive paper, 1000 mesh water abrasive paper, 1500 mesh water abrasive paper, 2000 mesh water abrasive paper and 2500 mesh water abrasive paper to polish the surface of carbon steel until the surface of carbon steel is a mirror surface; Then use deionized water to rinse the surface of the carbon steel for 3 to 5 times, then use absolute ethanol to rinse the surface of the carbon steel for 3 to 5 times, and finally use a hair dryer to dry it to obtain a bright carbon steel;

[0029] Two, the bright carbon steel obtained in step 1 is placed in the electrolytic solution in the stainless steel electrolytic cell, the bright carbon steel is connected with the pos...

specific Embodiment approach 2

[0040] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the main film-forming agent is sodium aluminate. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0041] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the additive is sodium hypophosphite monohydrate. Other steps are the same as in the first or second embodiment.

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Abstract

The invention discloses a preparation method and application of efficient Fe3O4 / FeAlO4 composite coating Fenton-like catalyst relate to preparation methods and application of Fenton-like catalysts, and aims to solve the problems that the conventional Fenton-like catalyst is difficult to separate and recycle, and poor in mechanical property. The preparation method comprises the following steps: I, carbon steel is polished; II, bright carbon steel is connected with the anode of a power supply, and serves as an anode; a stainless steel electrolysis bath is connected with the cathode of the power supply, and serves as a cathode; III, plasma electrolysis reaction is carried out to obtain the efficient Fe3O4 / FeAlO4 composite coating Fenton-like catalyst. The Fe3O4 / FeAlO4 composite coating Fenton-like catalyst prepared according to the preparation method can achieve a 100 percent phenol degradation efficiency within 60 min. The preparation method provided by the invention can be used for preparing the efficient Fe3O4 / FeAlO4 composite coating Fenton-like catalyst.

Description

technical field [0001] The invention relates to a method and application for preparing a Fenton-like catalyst. Background technique [0002] With the rapid development of the economy and the continuous growth of the population, the discharge volume and discharge types of industrial wastewater, agricultural wastewater and domestic wastewater continue to increase, and the harm of organic pollutants in water to the environment and human beings is becoming more and more serious. In order to minimize water pollution and improve water quality, the advanced treatment of wastewater before discharge is of great significance for the control of environmental pollution. [0003] As an advanced oxidation technology, Fenton oxidation uses a certain amount of ferric ions mixed with hydrogen peroxide to generate strong oxidizing hydroxyl radicals at a certain pH value to degrade organic pollutants. Due to the simple operation, high degradation efficiency and simple equipment of the Fenton ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745C02F1/72
Inventor 姜兆华王建康姚忠平夏琦兴王志江
Owner HARBIN INST OF TECH
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