Efficient response optical coupling denitration catalyst and preparation method thereof
A denitrification catalyst and optical coupling technology, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve problems such as large energy consumption, complex process, and poor photoactivity
Pending Publication Date: 2021-04-20
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AI-Extracted Technical Summary
Problems solved by technology
The invention discloses an efficient response optical coupling denitration catalyst and a preparation method thereof, and belongs to the technical field of blast furnace slag application. The preparation method of the product comprises the following steps: uniformly mixing the titanium-containing blast furnace slag with the rare earth element oxide, the transition metal oxide and a certain amount of sodium hydroxide, heating to melt, reconfiguring a silicate phase while solid-dissolving transition group elements into a perovskite phase, and stripping the silicate phase through acid leaching treatment, thereby finally obtaining the perovskite-based functional material. The obtained product is the optical coupling low-temperature denitration catalyst with efficient response activity. According to the catalyst prepared by the method disclosed by the invention, the removal rate of NOx can reach 100% and the N2 selectivity can reach 92% under a low-temperature condition (140 DEG C) in a manner of adding a light source, so that the denitration catalyst capable of efficiently responding under the low-temperature condition is prepared at low cost in a short process; and the method disclosed by the invention has great significance in high-added-value application of the titanium-containing blast furnace slag and continuous and efficient removal of NOx in industrial waste gas.
Dispersed particle separationMetal/metal-oxides/metal-hydroxide catalysts
Rare-earth elementIndustrial waste +15
- Experimental program(4)
- Effect test(1)
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