家电科技2024，Vol.6Issue(6)：38-41,4.DOI:10.19784/j.cnki.issn1672-0172.2024.06.006
锰氧化物制备及甲醛降解性能研究
Study on the preparation of manganese oxide and the formaldehyde degradation performance
曹睿 1刘欢1
作者信息
- 1. 广东美的制冷设备有限公司 广东 佛山 528300
- 折叠
摘要
Abstract
Formaldehyde,as a typical indoor pollutant,has carcinogenic properties.Purifying formaldehyde is important for human health.At room temperature,using catalysts to degrade formaldehyde into CO2 and H2O has become the preferred solution for indoor formaldehyde purification.The δ-MnO2 is prepared by oxidation-reduction method.The appearance and structure of δ-MnO2 are analyzed by X-ray diffraction(XRD)and scanning electron microscope(SEM).Finally,the δ-MnO2 is loaded to the aluminum honeycomb panel to form the catalyst module.And the formaldehyde removal performance is compared with the activated carbon module in the 30m3 test chamber.The results show that the δ-MnO2 has many defect sites,which are conducive to the storage and transfer of reactive oxygen species.The δ-MnO2 has 2D layer structure,which is conducive to the adsorption of formaldehyde on the surface and diffusion to active sites.The catalyst module load δ-MnO2 0.065 g/cm3,the CADR value is 171m3/h.The formaldehyde removal performance of the catalyst module is much higher than the active carbon module with the same loading capacity.After multiple repeated experiments,the δ-MnO2 catalyst module maintains formaldehyde purification performance.And the cumulative purification amount(CCM)of formaldehyde exceeds 42000 mg,demonstrating a long-term formaldehyde purification life.关键词
甲醛/δ-MnO2/氧化还原法/室温催化氧化Key words
Formaldehyde/δ-MnO2/Oxidation-reduction method/Room temperature catalytic分类
信息技术与安全科学引用本文复制引用
曹睿,刘欢..锰氧化物制备及甲醛降解性能研究[J].家电科技,2024,6(6):38-41,4.
