Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method of using silver ferrite nanomaterial to catalyze persulfate to treat organic wastewater

A technology for organic wastewater and nanomaterials, applied in chemical instruments and methods, oxidized water/sewage treatment, water/sewage treatment, etc. The effect of stability, efficient degradation, and simple operation

Active Publication Date: 2019-04-05
湖北省工程咨询股份有限公司
View PDF9 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The Chinese invention patent with publication number CN 103880090A discloses a kind of AgFeO 2 The preparation method and application of nanoparticle gas-sensing materials, but the preparation method has the following disadvantages: 1. Seal the mixed suspension and place it in a stainless steel reaction kettle for 12-24 hours at 160-200 ° C, and the reaction conditions of liquid high temperature and high pressure Vigorous, long reaction time, extremely high requirements on equipment, high production cost; 2. The AgFeO 2 The material is irradiated with cobalt 60 source gamma rays at a dose of 10-1000kGy, and the operation risk is high, which is not conducive to mass production; 3. The diameter of the obtained nanoparticles is 50-100nm, and the size is relatively large, which will lead to effect, which in turn affects its performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method of using silver ferrite nanomaterial to catalyze persulfate to treat organic wastewater
  • Method of using silver ferrite nanomaterial to catalyze persulfate to treat organic wastewater
  • Method of using silver ferrite nanomaterial to catalyze persulfate to treat organic wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] AgFeO 2 material preparation

[0032] (1) Accurately weigh 16.16g Fe(NO 3 ) 3 9H 2 O and 6.8g AgNO 3 , each added to 50mL of distilled water, prepared to obtain a concentration of 0.8mol / L Fe(NO 3 ) 3 9H 2 O and 0.8mol / L AgNO 3 solution, the AgNO 3 solution dropwise to Fe(NO 3 ) 3 in solution;

[0033] (2) Use a NaOH solution with a concentration of 6 mol / L to adjust the pH=10, stir for 30 minutes, and after standing still, wash the precipitate with water, dry and grind it to obtain a solid powder;

[0034] (3) Dry the solid powder obtained in step (2) at 100°C for 3 hours to obtain AgFeO 2 nanomaterials;

[0035] AgFeO 2 Material application

[0036] (4) AgFeO 2 Nanomaterials and potassium peroxymonosulfonate (PS) are mixed into organic wastewater, and the concentration of potassium peroxymonosulfonate in organic wastewater is 0.2g / L, AgFeO 2The concentration of nanomaterials in organic wastewater is 1g / L, the pollutant in organic wastewater is rhodami...

Embodiment 2

[0038] AgFeO 2 material preparation

[0039] (1) Accurately weigh 10.1g Fe(NO 3 ) 3 9H 2 O and 4.25g AgNO 3 , each added to 50mL of distilled water, prepared to obtain a concentration of 0.5mol / L Fe(NO 3 ) 3 9H 2 O and 0.5mol / L AgNO 3 solution, the AgNO 3 solution dropwise to Fe(NO 3 ) 3 in solution;

[0040] (2) Use a NaOH solution with a concentration of 7 mol / L to adjust the pH to 10.5, stir for 1 hour, and after standing still, wash the precipitate with water, dry and grind it to obtain a solid powder;

[0041] (3) Dry the solid powder at 100°C for 3 hours to obtain AgFeO 2 nanomaterials;

[0042] AgFeO 2 Material application

[0043] (4) AgFeO 2 Nanomaterials and potassium peroxymonosulfonate are mixed into organic wastewater, and the concentration of potassium peroxymonosulfonate in organic wastewater is 0.3g / L, AgFeO 2 The concentration of nanomaterials in organic wastewater is 0.5g / L, the pollutant in organic wastewater is rhodamine B (RhB), the initia...

Embodiment 3

[0045] AgFeO 2 material preparation

[0046] (1) Accurately weigh 12.12g Fe(NO 3 ) 3 9H 2 O and 5.1 g AgNO 3 , each added to 50mL of distilled water, prepared to obtain a concentration of 0.6mol / L Fe(NO 3 ) 3 9H 2 O and 0.6mol / L AgNO 3 solution, the AgNO 3 solution dropwise to Fe(NO 3 ) 3 in solution;

[0047] (2) Use a NaOH solution with a concentration of 8 mol / L to adjust the pH to 12, stir for 1.5 hours, and after standing still, wash the precipitate with water, dry and grind it to obtain a solid powder;

[0048] (3) Dry the solid powder at 100°C for 3 hours to obtain AgFeO 2 Nanomaterials; AgFeO 2 Material application

[0049] (4) AgFeO 2 Nanomaterials and potassium peroxymonosulfonate are mixed into organic wastewater, and the concentration of potassium peroxymonosulfonate in organic wastewater is 0.2g / L, AgFeO 2 The concentration of nanomaterials in organic wastewater is 2g / L, the pollutant in organic wastewater is rhodamine B (RhB), the initial concentr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method of using a AgFeO2 nanomaterial to catalyze persulfate to treat organic wastewater. The method is characterized by including: (1), dropwise adding a AgNO3 solution intoa Fe(NO3)3 9H2O solution; (2), adding alkali liquid to adjust pH to 10-12, stirring for 0.5-2h, standing, and subjecting precipitate to centrifugal water washing and drying and grinding to obtain solid powder; (3), drying the solid powder at 100-150 DEG C for 2-4h to obtain the AgFeO2 nanomaterial; (4), mixing the AgFeO2 nanomaterial with potassium peroxomonosulfate, and putting into the organicwastewater. After the AgFeO2 nanomaterial is put into wastewater, recycling of a catalyst can be realized through simple solid-liquid separation, and the catalytic reaction process does not need external energy and simple in operation. Efficient degradation of organic dye and phenolic wastewater can be realized within a wide pH range.

Description

technical field [0001] The present invention relates to the field of catalyst new material technology and environmental purification technology, specifically refers to a kind of AgFeO 2 Nanomaterial-catalyzed method for persulfate treatment of organic wastewater. Background technique [0002] The rapid expansion of industrial production has led to the generation of a large amount of refractory industrial wastewater. The existence of organic pollutants in water has brought serious threats to human health and ecological environment. Although H 2 o 2 The traditional advanced oxidation technology represented by AO can realize the rapid degradation of most organic pollutants in water. However, in practical applications, there are also harsh pH requirements, H 2 o 2 Self-instability and the generated hydroxyl radicals (·OH) have short life spans in water bodies. Therefore, it is necessary to find a new and efficient advanced oxidation technology to achieve efficient and saf...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89C02F1/72C02F101/30C02F101/34
CPCB01J23/8906C02F1/725C02F2101/308C02F2101/345
Inventor 王继全秦茜袁念念易程程周婕邵婷黄鹏黄莹
Owner 湖北省工程咨询股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com