Preparation method and application of zero-valent copper modified reinforced zero-valent iron-carbon micro-electrolysis material

Abstract

The invention provides a preparation method and application of a zero-valent-copper-modified reinforced zero-valent-iron-carbon micro-electrolysis material, and relates to the technical field of environmental governance, the preparation method of the nano zero-valent-iron-carbon-copper micro-electrolysis material specifically comprises the following steps: (1) preparation of a Fe0 / C micro-electrolysis material: mixing glucose, ferric citrate and deionized water to obtain a mixed solution, and carrying out ultrasonic treatment on the mixed solution to obtain a Fe0 / C micro-electrolysis material; carrying out ultrasonic treatment, heating and constant-temperature reaction on the mixed solution, and then cooling, cleaning and drying to obtain an iron-carbon micro-electrolysis material precursor; and (2) preparation of the Fe0 / C-coated Cu0 micro-electrolysis material: mixing the iron-carbon micro-electrolysis material precursor with basic cupric carbonate, and calcining to obtain the Fe0 / C-coated Cu0 micro-electrolysis material which is a novel heterogeneous catalyst which is simple to prepare, green and efficient, has the characteristics of microporous structure, high activity and high degradation rate, and can be applied to degradation of sulfathiazole.

Description

technical field [0001] The invention relates to the technical field of environmental treatment, in particular to a preparation method and application of a zero-valent copper modified and enhanced zero-valent iron-carbon micro-electrolytic material. Background technique [0002] Iron carbon (Fe 0 / C) Micro-electrolysis technology has become an environmentally friendly technology widely used in the treatment of various pollutants in industrial wastewater due to its advantages of simple operation and strong practicability. In the micro-electrolysis process, the active species produced have high chemical activity, which can quickly and efficiently degrade organic pollutants and improve the biodegradability of industrial wastewater. Fe 0 Most of the preparation methods of / C micro-electrolytic materials are physical mixing method of iron source and carbon source, reduction co-deposition method, high temperature calcination method and so on. Iron sources include iron filings, i...

AI Technical Summary

Problems solved by technology

[0005] So far, the prior art has the following disadvantages, namely: 1) Fe 0 In practical application, due to its high activity, it is prone to agglomeration, and it is easy to oxidize with air, resulting in a decrease in its activity. At the same time, there is a problem that it is not easy to reuse. How to overcome the above shortcomings is a difficult point that needs to be broken through; 2) Binary Fe 0 / C micro-electrolysis system compared to single Fe 0 system, the above problems have been further improved, but the practical application is still subject to many limitations

Due to Fe 0 Or the role of corrosion products on the surface of C, the activity of the binary micro-electrolysis system will gradually disappear with time, so the degradation ability of pollutants is limited

Based on Fe 0 It is necessary to find a simple, green and efficient new heterogeneous catalyst with the characteristics of microporous structure, high activity and high degradation rate due to the low activity of / C micro-electrolysis.

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