Method for directly producing photocatalysis assembled material with high-titanium furnace cinder

Abstract

The invention relates to a method for preparing a photocatalytic material, in particular to a method for directly preparing a photocatalytic composite material by utilization of high-titanium blast furnace slag. The method comprises the following steps: the ingredients in weight percentage of the photocatalytic composite material include 10 to 22 percent of quartz, 5 to 28 percent of borax, 0 to 15 percent of boronic acid and 45 to 72 percent of high-titanium blast furnace slag; the photocatalytic composite material comprises the following chemical components in percentage by weight: 31.10 to 45.26 percent of SiO2, 12.4 to 17.53 percent of Al2O3, 0.38 to 0.55 percent of Fe2O3, 4.59 to 7.65 percent of TiO2, 12.20 to 17.8 percent of CaO, 6.12 to 8.56 percent of MgO, 0.28 to 0.45 percent of K2O, 2.32 to 6.83 percent of Na2O and 4.52 to 23.11 percent of B2O3; and the raw materials are fused at a temperature of 1300 DEG C for 2 hours, undergo heat treatment at a temperature of between 750 and 850 DEG C for 18 hours, dissolution treatment at a temperature of between 85 and 90 DEG C for 48 hours, and water scrubbing until the pH value is 7. The method uses waste to treat waste, and has low cost; the TiO2 can be directly generated on a SiO2 porous vector, so that the photocatalytic composite material is firm to load and easy to recover, and has high reaction activity and long service life; and the method can be widely applied to the aspects of environmental improvement, water treatment, pollution-free chemical reaction, antibacterial purification.

Description

Technical field: [0001] The invention relates to a method for preparing a photocatalytic material, in particular to a method for directly preparing a photocatalytic assembly material by using high-titanium blast furnace slag. Background technique: [0002] Nano-TiO 2 Photocatalytic material is a new type of environmental functional material. Using this material for photocatalytic reaction can directly degrade harmful substances in the air and water into CO2 under the irradiation of light. 2 and water, and has a good bactericidal effect, and has broad application prospects in the field of environmental governance. Nano TiO 2 The preparation of photocatalytic materials mostly adopts sol-gel method, the raw materials are expensive, and the preparation process is not suitable for large-scale production, which restricts the development of photocatalytic technology. [0003] The industrial reserves of vanadium-titanium magnetite in my country rank first in the world, and it is ...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem of existing nano-TiO 2 Due to the technical defects in the preparation method of photocatalytic materials and the problem of a large waste of titanium resources, a method for directly preparing photocatalytic assembly materials using high-titanium blast furnace slag is provided.

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