Method for grinding assisted self-permeation synthesis of metal mesoporous silica for high-efficiency catalytic degradation of methylene blue

Abstract

The invention provides a method for grinding assisted self-permeation synthesis of metal mesoporous silica for high-efficiency catalytic degradation of methylene blue, wherein the method includes thefollowing steps: S1, dissolving a three-block copolymer P123 in water, adding aluminum chloride hexahydrate, and stirring for 0.5-1 h in a 35 DEG C water bath pot; S2, then adding a silicon source, and continuing to stir until a precipitate appears; S3, loading the mixed solution in the step S2 into a high pressure reaction kettle, carrying out hydrothermal aging for 24 h at the temperature of 100DEG C, filtering to obtain a solid, then washing and air-drying, and thus obtaining mesoporous silica containing a template agent, and S4, mixing the mesoporous silica prepared in the step S3 with anhydrous ferric trichloride, fully grinding, roasting and removing the template agent, to obtain the metal-doped mesoporous silica material. The invention provides the method for synthesis of the metalspecies-doped mesoporous silica for high-efficiency catalytic degradation of methylene blue, wherein the method has the advantages of low cost, simple process, environmental protection, low carbon, time saving and energy conservation.

Description

Technical field [0001] The invention relates to a self-osmotic synthesis and high-efficiency catalytic degradation of methylene blue mesoporous Fe-SiO 2 , Co-SiO 2 , Cu-SiO 2 The material method, specifically using mesoporous silica without removing the template agent as the carrier, and introducing the metal species into the mesoporous silica structure in a self-permeable manner through the grinding aid to obtain a mesoporous silica material with high-efficiency catalytic degradation of methylene blue . Background technique [0002] Organic synthetic dyes are widely used in textile, food, beverage, printing, leather and other industries. It has the characteristics of high concentration, large emission, complex composition and difficult biochemical degradation, which brings huge environmental pollution and health risks. More importantly, after the printing and dyeing wastewater is treated by traditional methods, the water quality is still difficult to meet the discharge standard...

AI Technical Summary

Problems solved by technology

[0005] A literature search of the prior art revolves around the synthesis of mesoporous Fe-SiO by self-infiltration assisted by grinding 2 、Co-SiO 2 , Cu-SiO 2 material, no domestic patent reports have been found, and there is little mention of synthetic grinding-assisted self-permeation synthesis of mesoporous Fe-SiO in the world. 2 materials, we are the first to use mesoporous SiO containing block copolymer templates 2 As a carrier, iron ions are effectively introduced into mesoporous silica by self-permeation through grinding assistance, and finally the template agent is removed by calcination and the iron precursor is converted at the same time, and a regular mesoporous structure, large specific surface area, and high adsorption are synthesized. Mesoporous Fe-SiO with high performance and strong thermal stability and high catalytic activity 2 It is an easy-to-operate, simple, fast, economical and environmentally friendly method for materials, and uses materials for adsorption and efficient catalytic degradation of organic dye wastewater