活性炭表面改性及其吸附室内甲醛污染物性能的研究  

Study on Surface Modification of Activated Carbon and its Adsorption Performance of Indoor Formaldehyde Pollutants

作　　者：刘田泽 姜海燕 郭浩霞 陶然 范晓星[1] Liu Tianze;Jiang Haiyan;Guo Haoxia;Tao Ran;Fan Xiaoxing(School of Physics,Liaoning University,Shenyang,Liaoning 110036,China)

机构地区：[1]辽宁大学物理学院,辽宁沈阳110036

出　　处：《黑龙江工业学院学报（综合版）》2022年第8期71-77,共7页Journal of Heilongjiang University of Technology(Comprehensive Edition)

基　　金：国家自然科学基金(项目编号:21773099)。

摘　　要：拟以活性炭材料为基础,针对室内甲醛污染问题,通过氨基和甲醛的反应,设计使用浸渍法在活性炭表面同时负载聚乙烯亚胺和尿素活性物质,利用活性炭表面负载的化学功能基团,提高活性炭材料对甲醛的吸附能力和吸附的稳定性。实验结果表明:5g改性的活性炭在18小时内,使密闭空间中甲醛的降低了44%,而没有改性的活性炭的净化率仅为6.9%,聚乙烯亚胺和尿素改性方法有效地提高了活性炭对于气态甲醛的吸附量。This project research based on the activated carbon material,aiming at the indoor formaldehyde pollution problem,by the reaction between amino and formaldehyde,the immersion method is designed to load polyethyleneimine and urea active substances on the surface of activated carbon at the same time,and the chemical functional groups on the surface of activated carbon are used to improve the adsorption capacity and adsorption stability of activated carbon materials for formaldehyde.The experimental results show that the formaldehyde in the confined space reduces by 44% in 18 hours by 5g modified activated carbon,while the purification rate of activated carbon without modification is only 6.9%.The adsorption capacity of activated carbon on gaseous formaldehyde is improved by polyethylenimine and urea modification.

关 键 词：活性炭 甲醛 吸附 聚乙烯亚胺 尿素 

分 类 号：TQ424.1[化学工程] X51[环境科学与工程—环境工程]