Rare-earth modified active carbon catalytic material and preparation method thereof

Abstract

The invention relates to a rare-earth modified active carbon catalytic material, which is prepared from the following raw materials in parts by weight: 130 to 140 parts of active carbon, 1 to 3 parts of lanthanum oxide, 1 to 3 parts of thorium oxide, 1 to 3 parts of terbium oxide, 1 to 3 parts of dysprosium oxide, 1 to 3 parts of cerium oxide, 1 to 3 parts of neodymium oxide, 1 to 3 parts of gadolinium oxide, 10 to 13 parts of chitosan, 10 to 13 parts of rectorite, 2 to 3 parts of nano white mica powder, 5 to 8 parts of sodium silicate, 1 to 2 parts of sodium benzoate, 4 to 5 parts of modified diatomite and an appropriate amount of water. The active carbon is loaded with rare-earth metal oxide and nano white mica powder, so that the carbon oxide (CO) can be adsorbed and eliminated at the normal temperature, the conversion rate of the catalytic material on the CO is 99.97 percent, the catalytic activity still can reach 99.2 percent after the catalytic material is continuously used for 600 hours; moreover, the production process is simple, and the preparation cost of the catalyst is low; by utilizing the rectorite, the catalytic material has an ion exchanging function; the rare-earth modified active carbon catalytic material is suitable for catalytically oxidizing the CO and also can be used for purifying the water.

Description

technical field [0001] The invention relates to the field of modified functional materials, in particular to a rare earth modified activated carbon catalytic material and a preparation method thereof. Background technique [0002] At present, air pollution has seriously affected people's production and life, so air purification has to be taken seriously. Adsorbents are often used in air purification, mainly activated alumina, activated carbon, and adsorbent materials developed for the selective adsorption of certain components. However, most of these adsorbents have limited adsorption capacity and cannot be completely eliminated after adsorption. It is necessary to study adsorbents that catalyze the decomposition of toxic substances. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a rare earth modified activated carbon catalytic material and a preparation method thereof. [0004] The technical scheme of the present invention is as fol...

AI Technical Summary

Problems solved by technology

However, most of these adsorbents have limited adsorption capacity and cannot be completely eliminated after adsorption. Therefore, it is necessary to study adsorbents that catalyze the decomposition of toxic substances.