Li Yaning, Liu Zhongzheng, Chi Chuanxi, Yuan Bin, Zhang Yang, Jiang Guiquan, Song Jianxi
Key Laboratory of Wooden Materials Science and Engineering of Jilin Province, Beihua University, Jilin City 132013, China.
Key Laboratory for the Structure and Function of Polysaccharides in Traditional Chinese Medicine, Beihua University, Jilin City 132013, China.
Polymers (Basel). 2023 Jul 25;15(15):3155. doi: 10.3390/polym15153155.
Air pollution is related to the development of the national economy and people's livelihoods. Formaldehyde, as one of the main pollutants in the air, affects people's physical and mental health. In order to remove formaldehyde and better protect the health of residents, it is necessary to develop efficient adsorption materials. In this study, APMDS-modified cellulose composite aerogel microcrystalline was investigated. The adsorption of formaldehyde by the MCC/APMDS (Microcrystalline Cellulose/N-(2-aminoethyl)-3- Aminopropyl Methyl Dimethoxysilane) composite aerogel mainly relied upon the reaction of the protonated -NH group in APMDS with formaldehyde to form a Schiff base to achieve the effect of deformaldehyde. Meanwhile, the modification of the aerogel reduced the pore volume and specific surface area, and the average pore size increased to 14.56 nm, which enhanced the adsorption capacity of formaldehyde, and the adsorption amount reached 9.52 mg/g. This study provides valuable information for the preparation of adsorbent materials with high formaldehyde adsorption capacity for air purification.
空气污染与国民经济发展和民生息息相关。甲醛作为空气中的主要污染物之一，影响着人们的身心健康。为了去除甲醛并更好地保护居民健康，开发高效吸附材料很有必要。本研究对APMDS改性纤维素复合气凝胶微晶进行了研究。MCC/APMDS（微晶纤维素/N-(2-氨乙基)-3-氨丙基甲基二甲氧基硅烷）复合气凝胶对甲醛的吸附主要依靠APMDS中质子化的-NH基团与甲醛反应形成席夫碱，以达到去除甲醛的效果。同时，气凝胶的改性降低了孔体积和比表面积，平均孔径增大到14.56nm，提高了对甲醛的吸附能力，吸附量达到9.52mg/g。本研究为制备具有高甲醛吸附能力的空气净化吸附材料提供了有价值的信息。
