【摘要】 采用沙柳木粉（SPP）为原料，以1-丙烯基-3-甲基咪唑氯盐、二甲基亚砜、聚乙烯醇溶剂体系，制备羧甲基沙柳木粉膜（CMSM）,通过FTIR、XRD、SEM、BET和XPS探究CMSM的微观结构，研究不同条件下CMSM吸附和脱附四环素（TC）的性能，表征结果表明：CMSM中-COOH、-OH的官能团强度增加，有助于提升CMSM对TC的吸附能力；纤维素结晶由I型向II型转变，结晶度下降；CMSM表面粗糙多孔，平均孔径7.88 nm; CMSM吸附TC主要是含碳、氧氮的官能团参加。吸附结果显示：TC初始浓度700 mg·L^-1、pH=4、吸附时间2 h、吸附温度35℃时，CMSM吸附TC的吸附量最大，为423.35 mg·g^-1。脱附结果显示：HNO₃浓度0.06 mg·L^-1,脱附温度45℃,脱附时间150 min时，CMSM脱附TC的脱附率最大，为87.1%。更多还原

【Abstract】 SPP was used as raw material.Carboxymethyl sallow wood powder film（CMSM）was prepared by solvent system of 1-propenyl-3-methylimidazolium chloride, dimethyl sulphoxide and polyvinyl alcohol.The microstructure of CMSM was explored by FTIR,XRD,SEM,BET and XPS,and the adsorption and desorption performance of tetracycline（TC）by CMSM under different conditions were studied.The characterization results showed that the increase of the functional group strength of-COOH and-OH in CMSM contributed to the improvement of the adsorption capacity of CMSM for TC.The crystallinity of cellulose changes from type I to type II,and the crystallinity decreases.CMSM has a rough and porous surface with an average pore size of 7.88 nm.CMSM adsorbed TC mainly by functional groups containing carbon, oxygen and nitrogen.The adsorption results showed that the maximum adsorption capacity of CMSM was 423.35 mg·g^-1 when the initial concentration of TC was 700 mg·L^-1,pH value was 4,adsorption time was 2 hours, and adsorption temperature was 35 ℃.The desorption results showed that the desorption rate of CMSM TC was 87.1%when HNO₃ concentration was 0.06 mol/L,desorption temperature was 45 ℃ and desorption time was 150 min.更多还原