活性炭纤维复合改性及其吸附性能研究  

Study on the Composite Modification of Activated Carbon Fiber and Its Adsorption Properties

作　　者：罗涛朋 杨思 范欣颖 董瑞婷 黄俊豪 LUO Taopeng;YANG Si;FAN Xinying;DONG Ruiting;HUANG Junhao(College of Chemistry and Food Science,Nanchang Normal University,Nanchang 330032,China)

机构地区：[1]南昌师范学院化学与食品科学学院,江西南昌330032

出　　处：《河南科技》2024年第22期82-85,共4页Henan Science and Technology

基　　金：南昌师范学院学生科研创新项目(22XSKY44、22XSKY46)。

摘　　要：[目的]通过温和的改良技术增强聚丙烯腈基活性炭纤维(PAN-ACF)对二氧化硫(SO)的吸附性能,旨在开发一种经济实惠且环境友好的吸附材料。[方法]以聚丙烯腈基活性炭纤维(PANACF)为前驱体,利用微波加尿素浸泡复合改性方法对PAN-ACF进行改性处理。[结果]其中提升PAN-ACF对SO吸附性能的最优改性方法为4%尿素浸泡+8 min中火微波,对比原片吸附量提升了147.15%。结合红外光谱分析和扫描电镜表征,分析得出复合改性技术可以优化活性炭纤维结构和负载的官能团,从而增强其吸附性能。[结论]与传统改性方法相比,本研究所采用的微波加热和尿素浸泡改性技术属于绿色改性方法,具有较好的应用前景。[Purposes]The adsorption performance of PAN-based activated carbon fiber(PAN-ACF)on sulfur dioxide(SO)was enhanced by a mild modification technique,aiming to develop a cost-effective and environment-friendly adsorbent material.[Methods]PAN-ACF was used as a precursor,and being PAN-ACF was modified with composite modification methods by using microwave and being soaked in varying concentrations of urea acid.[Findings]Among them,the optimal modification method to improve the adsorption performance of PAN-ACF to SO is soaking them in 4%urea and microwaving them with medium fire for 8 minutes,and by doing so,the absorption capacity is 147.15%higher than that of the original sheet.Combined with infrared spectroscopy and scanning electron microscopy,it is concluded that the composite modification technology can optimize the structure of activated carbon fiber and the loaded functional groups,thereby enhancing its adsorption.[Conclusions]The microwave heating and urea immersion modification techniques used in this study are green modification methods with better ap⁃plication prospects compared with traditional modification methods.

关 键 词：聚丙烯腈基活性炭纤维 复合改性 吸附性能 

分 类 号：X701[环境科学与工程—环境工程] TQ424[化学工程]