摘要
以酚醛纤维为原料,采用水蒸气活化法进行物理活化,制备具有丰富微孔结构的酚醛基活性炭纤维,并以亚甲基蓝染料溶液作为吸附质,探讨吸附时间、吸附温度、染料溶液初始浓度对其吸附性能的影响,同时对其吸附平衡、吸附动力学进行研究。结果表明:酚醛基活性炭纤维对亚甲基蓝染料分子的吸附性较好,吸附时间、吸附温度及染料溶液初始浓度均对吸附性能有较大影响;吸附过程符合Langmuir吸附等温线模型和准二级动力学模型,表明酚醛基活性炭纤维对亚甲基蓝染料分子的吸附属于单分子层吸附,且吸附过程以化学吸附为主导。
Taking phenolic fibers as raw materials, phenolic-based activated carbon fibers with highly microporous structure were prepared by physically activated via steam activation method. The effects of adsorption time, adsorption temperature and initial concentration of dye solution on the adsorption performance of various phenolic-based activated carbon fibers samples were discussed by using methylene blue dye solution as adsorbate.Meanwhile, the adsorption equilibrium and adsorption kinetics were also investigated. The results showed that phenolic-based activated carbon fibers had good adsorption capability for methylene blue dye molecules, and the adsorption time,adsorption temperature and initial concentration of dye solution had a significant effect on the adsorption performance. The adsorption process fitted in well with Langmuir isotherm model and pseudo-second order kinetic model,which indicated that the adsorption of methylene blue dye by phenolic-based activated carbon fibers belonged to a monolayer adsorption and the adsorption process is dominated by chemical adsorption.
作者
周逸如
杨智联
舒雨霞
金菲菲
刘其霞
季涛
王玉萍
陈天烨
Zhou Yiru;Yang Zhilian;Shu Yuxia;Jin Feifei;Liu Qixia;Ji Tao;Wang Yuping;Chen Tianye(School of Textile and Clothing,Nantong University,Nantong 226019,China;Nationai&Local Joint EngineeOng Research Center of Technical Fibee Compositee for Safety and Healti,Nantong Univeaity,Nantong 226019,China;Jiangsu Sutong Carbon Fibee Co.,Ltd.,Nantong 226005,China)
出处
《产业用纺织品》
北大核心
2019年第10期7-14,共8页
Technical Textiles
基金
国家自然科学基金项目(51702167)
国家重点研发计划项目(2018YFC0810300和2016YFC0204204)
江苏省产学研合作项目(BY2018203)
关键词
酚醛基活性炭纤维
亚甲基蓝
微孔
吸附时间
吸附温度
染料溶液初始浓度
吸附机理
phenolic-based activated carbon fiber
methylene blue dye
microporous
adsorption time
adsorption temperature
initial concentration of dye solution
adsorption mechanism
