Abstract
Glass fiber (GF) was selected as catalyst carrier, and the experiment was carried out to modify the glass fiber without catalyst carrier, so that it could achieve the best loading effect. The activity of the waste gas from the catalytic combustion of polyester cotton with Ce-Mn/GF series of catalysts decreased in the following order: Ce-Mn/GF (1:5), Ce-Mn/GF (1:4), Ce-Mn/GF (1:6), Ce-Mn/GF (1:3), and Ce-Mn/GF (1:2) (Ce/Mn ratio is molar ratio). When O2 concentration was less than 6%, O2 had a great influence on the reaction and is the main control factor of the reaction. However, when O2 concentration was higher than 6%, the influence of O2 concentration could be basically ignored, and the gas condition of the reaction became the main influence factor of the reaction. The activity of the catalyst was related to its specific surface area and pore structure. The specific surface area of the catalyst was affected by the loading capacity of metal oxide CeO2 and MnOx. The catalysts of Ce-Mn/GF (x) series (x ≠ 0), Mn existed in the state of Mn4+. The active centers CeO2 and MnOx are amorphous and uniformly dispersed on the carrier glass fiber.
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