纺织科学与工程学报2024，Vol.41Issue(3)：71-74,4.DOI:10.3969/j.issn.2096-5184.2024.03.011
莲杆纤维多孔碳的制备及其CO2吸附性能
Preparation of Porous Carbon of Lotus Stem Fibers and Its CO2 Adsorption Properties
摘要
Abstract
Efficient CO2 adsorbents are urgently needed due to the increasing concentration of CO2 in the at-mosphere.Waste biomass lotus stem fibers were taken as raw materials,nitrogen-doped porous carbon samples with well-developed pore structures were prepared by a two-step carbonization method.The synthesis process in-cluded the carbonization of lotus stem fibers,KOH activation of derived lotus stem fibers porous carbon and modi-fication with chitosan.Chitosan modification was used to improve the surface alkalinity and introduction of N to the porous carbon,and increase the CO2 adsorption properties.The results showed that when the nitrogen-doped porous carbon reached a specific surface area of 1550 m2/g,the adsorption amounts were as high as 4.59 and 6.31 mmol/g at 20℃ and 0℃ and 1 bar respectively,exhibiting excellent CO2 adsorption properties and cycling properties.And the porous carbon prepared by this method had a promising future in CO2 adsorption.关键词
莲杆纤维/多孔碳/KOH活化/N-掺杂/CO2吸附Key words
lotus stem fibers/porous carbon/KOH activation/N-doping/CO2 adsorption分类
资源环境引用本文复制引用
陈思魁,刘黎,郭荣辉..莲杆纤维多孔碳的制备及其CO2吸附性能[J].纺织科学与工程学报,2024,41(3):71-74,4.基金项目
成都市科技计划项目(2022-YF05-00396-SN),四川省科技计划项目(2023YFQ0083). （2022-YF05-00396-SN）
