【摘要】 以麦秆基纳米纤维素纤丝(LCNFs)为载体，聚乙烯醇(PVA)为增强剂，通过吡咯原位氧化聚合制备了LCNFs/PVA-PPy(LPP)复合气凝胶，研究了LPP对Cr(Ⅵ)的吸附性能。结果表明，LPP为黑色多孔三维网络结构，吸附Cr(Ⅵ)的最适pH为2,吸附动力学为准二级动力学，吸附等温方程为Freundlich模型。本研究可为生物质资源化利用及Cr(Ⅵ)污染治理提供技术依据，也适合用于化学、材料及环境等相关专业的本科生综合实验教学。更多还原

【Abstract】 A LCNFs/PVA-PPy(LPP) composite hydrogels were prepared by in-situ oxidation polymerization of pyrrole using nanocellulose fibrils(LCNFs) as carrier and polyvinyl alcohol(PVA) as reinforcing agent, the adsorption properties of LPP for Cr(Ⅵ) were studied.The results show that LPP is a black elastic porous three-dimensional network structure.The optimal pH value of Cr(Ⅵ) adsorption is 2,the adsorption kinetics is fitted to the pseudo-second order kinetic model, the adsorption isotherm equation is fitted to the Freundlich model.The results can be used not only for the resource utilization of agricultural waste and Cr(Ⅵ) pollution treatment, but also for the comprehensive experimental teaching of undergraduates in chemistry, materials and environment.更多还原