湖南农业大学学报（自然科学版）2025，Vol.51Issue(2)：122-128,7.
β-苯乙醇在烟草秸秆活性炭上的吸附及缓释性能
Adsorption and sustained release properties of β-phenylethanol using tobacco straw activated carbon
摘要
Abstract
Tobacco straw activated carbons(TSAC60,TSAC75,TSAC90)were prepared at three activation times(60,75,90 min)by pyrolysis activation method.The adsorption and release behaviors of β-phenylethanol on the three prepared activated carbons(TSAC)were studied,and the influence of pore structure on the adsorption and release behavior of β-phenylethanol was analyzed using a kinetic model.The results showed that the pore structure varied with activation time:microporosity decreased from 66.39%(TSAC60)to 24.81%(TSAC90).Adsorption of β-phenylethanol on TSAC was primarily physical,best fitted by the pseudo-first-order kinetic model,with TSAC60 showing the highest equilibrium adsorption(101.49%)but the lowest rate constant.Non-isothermal heat release analysis indicated enhanced thermal stability,with TSAC60 exhibiting the strongest sustained release,well-described by the Page model.Isothermal release followed the Korsmeyer-Peppas model,dominated by Fickian diffusion;TSAC60 released 27.34%of β-phenylethanol after 35 days.The microporosity of TSAC was the key factor governing adsorption and sustained release performance.关键词
烟草秸秆/活性炭/β-苯乙醇/吸附/缓释/热稳定性/动力学Key words
tobacco straw/activated carbon/β-phenylethanol/adsorption/sustained release/thermal stability/dynamics分类
化学化工引用本文复制引用
许克静,张峻松,刘向真,刘语煊,马一琼,郝辉,张智轩,方志辉,梁淼,陈小龙..β-苯乙醇在烟草秸秆活性炭上的吸附及缓释性能[J].湖南农业大学学报（自然科学版）,2025,51(2):122-128,7.基金项目
河南中烟工业有限责任公司科研项目(AW2022024) （AW2022024）
