以废旧亚麻织物为原料,利用微波辐射-超声浸渍-磷酸法制备亚麻基活性炭纤维。探讨了磷酸浓度、超声浸渍时间、微波辐射功率及时间对亚麻基活性炭纤维性能的影响,通过X射线衍射(XRD)、扫描电镜(SEM)和红外光谱(FT-IR)等方法测试了亚麻基活性炭纤维的孔隙结构和表面化学性质。结果表明:在磷酸浓度为20%,超声浸渍60min,微波辐射功率400W,微波辐射10min的工艺条件下,制备的亚麻基活性炭纤维得率为38.15%,碘吸附值可达1092.66mg/g,亚甲基蓝吸附值可达260mg/g,亚麻基活性炭纤维孔隙结构丰富,表面富含羟基、羧基及酯基等官能团。在制备过程中,微波辐射-超声浸渍的应用对活性炭纤维孔隙的形成、发展和调控具有重要作用。
The flax-based activated carbon fibers(F-ACF) was prepared from waste flax fabric(WFF) by microwave radiation-ultrasonic impregnation-phosphoric acid method.The effects of phosphoric acid concentration,ultrasonic immersion time,microwave radiation power and time on the properties of F-ACF were investigated.The pore structure and surface chemical property of F-ACF were tested by SEM,XRD and FT-IR.The results showed that under the conditions of phosphoric acid concentration 20%,ultrasonic impregnation for 60min,microwave radiation power 400W,microwave radiation for 10min,the yield of F-ACF was 38.15%,the iodine adsorption value was 1092.66mg/g,and the methylene blue adsorption value was 260mg/g.The surface of F-ACF was rich in hydroxyl group,carboxyl group and ester group.In the preparation process,the application of microwave radiation-ultrasonic impregnation played an important role in the formation,development and regulation of ACF pores.
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基金资助
黑龙江省教育厅基本科研业务费校地合作项目(135309212);黑龙江省齐齐哈尔市科技局科研项目(SFGG-201917);齐齐哈尔大学研究生创新科研项目(YJSCX2019055)
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