N-situ growing of platinum catalyst on activated carbon for formaldehyde purification at room temperature

[摘要] The activated carbon (AC) particles with different microstructures were used to support platinum active component by in-situ growing method, so as to prepare a series of Pt/AC structured catalysts. Compared to pure AC samples, the as-prepared Pt/AC catalysts do not have the limit of saturated adsorption capacity in the field of formaldehyde (HCHO) purification, and can be used for many times to eliminate HCHO pollutants at room temperature. Moreover, all the Pt/AC catalysts can maintain a high HCHO conversion of 75-85% in the multi-use test, indicating that the HCHO purification mechanism on the catalysts is a synergistic function of physical adsorption and catalytic oxidation. Furthermore, the HCHO oxidation activities of Pt/AC catalysts are also influenced by the microstructures of AC substrates, such as BET surface area, mesopore content and BJH pore volume.

[发布机构] School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou; 510006, China^1;Foshan Shunde Kinglei Environment and Technology Co. LTD, Foshan; 528308, China^2

[效力级别] 无线电电子学 [学科分类] 材料科学（综合）

[关键词] Active components;BET surface area;Hcho oxidations;Physical adsorption;Platinum catalysts;Purification mechanisms;Saturated adsorption capacity;Structured catalyst