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A kind of manganese-nickel-copper-based water treatment catalyst and preparation method and application thereof

A catalyst, manganese-nickel-copper technology, applied in physical/chemical process catalysts, energy wastewater treatment, chemical instruments and methods, etc., to achieve strong application and promotion value, high cost performance, excellent redox performance and oxygen storage and release performance

Active Publication Date: 2022-07-12
NANJING TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is aimed at the current situation and existing problems in the field of water pollution treatment, and proposes a novel catalyst with strong pH adaptability and efficient degradation effects on dyes such as methyl orange, p-nitrophenol, and methylene blue. Another object is to provide the preparation method of above-mentioned catalyst and application thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Preparation of catalyst carrier

[0032] Weigh 20.000g of zirconium hydrogen phosphate, add 600g of deionized water, mix well, ultrasonically stir for 1 hour to obtain a zirconium hydrogen phosphate suspension, then weigh 52.305g of zirconium oxychloride octahydrate powder and add it to the zirconium hydrogen phosphate suspension. The solution was stirred at a temperature of 80 °C until the solution became colorless; then it was dried in an oven at 80 °C for 10 hours, and then placed in a muffle furnace for calcination at 650 °C for 2 hours to obtain catalyst carrier particles, in which zirconium hydrogen phosphate and The mass ratio of zirconia is 1:1;

[0033] (2) Preparation of active component precursor solution

[0034] Weigh 3.642g of manganese chloride tetrahydrate, 0.934g of nickel nitrate hexahydrate and 0.486g of copper nitrate trihydrate, add 5.062g of deionized water and stir at a temperature of 80°C until the solution is clear and transparent to obtain...

Embodiment 2

[0043] (1) Preparation of catalyst carrier

[0044] Weigh 20.000g of zirconium hydrogen phosphate, add 600g of deionized water, mix well, ultrasonically stir for 1 hour to obtain a zirconium hydrogen phosphate suspension, and then add 52.305g of zirconium oxychloride octahydrate powder to the zirconium hydrogen phosphate suspension, and at a temperature of The solution was stirred at 80 °C until the solution became colorless; then it was dried in an oven at 80 °C for 10 hours, and then placed in a muffle furnace for calcination at 650 °C for 4 hours to obtain catalyst carrier particles, in which zirconium hydrogen phosphate and zirconia were in the carrier. The mass ratio is 1:1;

[0045] (2) Preparation of active component precursor solution

[0046]Weigh 8.195g of manganese chloride tetrahydrate, 0.934g of nickel nitrate hexahydrate and 0.486g of copper nitrate trihydrate, add 9.615g of deionized water and stir at a temperature of 80°C until the solution is clear and transp...

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PUM

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Abstract

The invention discloses a manganese-nickel-copper-based water treatment catalyst, a preparation method and application thereof. The catalyst uses a mixture of zirconium hydrogen phosphate and zirconium oxide as a carrier and a manganese-nickel-copper composite oxide as a catalytic active component. The active component, the co-catalyst colloid solution and the catalyst carrier are uniformly stirred, aged, extruded, dried and roasted. The catalyst is environmentally friendly, has low cost, and can efficiently catalyze the reduction of water pollutants such as p-nitrophenol, methyl orange, and methylene blue.

Description

technical field [0001] The invention relates to the field of catalytic materials and sewage treatment, in particular to a manganese-nickel-copper-based water treatment catalyst and a preparation method and application thereof. Background technique [0002] p-nitrophenol, methyl orange, methylene blue, etc. are commonly used dyes, and 10% to 20% of them are discharged into the water environment during their use, while the waste water containing p-nitrophenol, methyl orange, methylene blue and other dyes is toxic High, containing carcinogenic, mutagenic and teratogenic substances; high chroma, inhibiting photosynthesis of plants in aquatic systems: high COD value will lead to eutrophication of water. Based on the above hazards, wastewater containing dyes such as p-nitrophenol, methyl orange, and methylene blue is an urgent problem that needs to be dealt with in the current water treatment technology. Commonly used treatment methods include adsorption method, membrane separati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/16B01J23/89C02F1/70C02F101/30C02F101/34C02F101/38
CPCB01J27/16B01J23/8986B01J23/002C02F1/70B01J2523/00C02F2101/308C02F2101/345C02F2101/38B01J35/23B01J2523/17B01J2523/48B01J2523/72B01J2523/847Y02W10/37
Inventor 徐海涛金奇杰戴毅徐梦李明波宋静
Owner NANJING TECH UNIV
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