Preparation method and application of magnetic Co-V/C3N3 composite supporter particles

Abstract

The invention discloses a preparation method and application of magnetic Co-V / C3N3 composite carrier particles. The method comprises the following steps: collecting degradation-resistant organic wastewater, adding a magnetic Co-V / C3N4 modified photocatalytic material, and feeding a proper amount of oxygen to initiate degradation reaction of degradation-resistant organic matters under the irradiation of electron beams; and after the reaction is finished, carrying out solid-liquid separation on the magnetic Co-V / C3N4 and a water body under the action of a magnetic field, wherein the supernate is treated water. When the bottom of the reactor needs to be dredged, the magnetic Co-V / C3N4 can be separated from sediments at the bottom under the action of a magnetic field, so that the loss of the catalyst is avoided. The preparation method is carried out at normal temperature and normal pressure, reaction conditions are mild, and the process is simple; the added photocatalytic functional material is environment-friendly and does not generate secondary pollution; the wastewater treatment process is short, the treatment effect is good, and the method is suitable for large-scale treatment of degradation-resistant organic wastewater.

Description

technical field [0001] The invention relates to the technical field of water treatment, more specifically to a magnetic Co-V / C 3 N 3 Preparation method and application of composite carrier particles. Background technique [0002] With the continuous development of modern industry and the continuous improvement of people's material needs, the types and quantities of refractory organic wastewater produced through various channels are increasing day by day. At present, there are many researches on refractory organic wastewater treatment methods, including physical methods (adsorption, ultrafiltration, etc.), chemical methods (oxidant oxidation, advanced oxidation technology, etc.), biochemical methods, photocatalysis and other treatment measures. However, most of the methods show the characteristics of high energy consumption and high operating costs, which lead to a significant increase in the treatment cost of refractory organic wastewater. Traditional sewage treatment met...

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Problems solved by technology

[0003] The traditional Fenton oxidation technology is by adding Fe 2+ And hydrogen peroxide to generate hydroxyl radicals (OH) to achieve advanced oxidation removal of refractory organic wastewater, but there are such as H 2 o 2 Due to a series of problems such as transportation and storage caused by instability, it is not conducive to the large-scale development and application of this technology; the subsequent development of the electro-Fenton method uses inorganic salts as electrolytes. 2 with H 2 O produces OH, which solves the source of OH. However, the introduction of inorganic salts as electrolytes is not conducive to the treatment of refractory organic wastewater with low conductivity. At the same time, new pollutants are introduced into the system, which also increases the treatment cost. Further improve