林产化学与工业2016，Vol.36Issue(5)：37-44,8.DOI:10.3969/j.issn.0253-2417.2016.05.006
玉米秸秆基吸油材料的制备与表征
Preparation and Characterization of Oil AbsorbentMaterial Derived from Corn Stalk
摘要
Abstract
By using raw corn stalk (RCS) as staring material, PCS was pretreated with ammonia water and then employed to perform esterification with acetic anhydride.Thus, the oil absorbent materials derived from raw corn stalk (ECS) was obtained.The effect of esterification condition on the performance of oil absorption was also investigated.The results indicated that the oil absorbency of the RCS and PCS (pretreated for 6 h) to 0# diesel were 1.90 and 4.43 g/g, respectively.The oil absorbency of the obtained ECS material could be 9.03 g/g which was prepared under the following esterification conditions: acetic acid as solvent, m(acetic acid)∶m(acetic anhydride)=1, m(corn stalk)∶m(liquid mixture)=1∶15,4.5 % H2SO4 as catalyst (base on the mass of PCS), reaction temperature 110 ℃ and reaction time 5 h.The obtained ECS displayed a remarkably increase in hydrophobicity and floating ability after esterification modification.The RCS, PCS and ECS were analyzed and characterized by BET, FT-IR, XRD, SEM.The results showed that the esterification reaction was carried out smoothly.the corn stalk after esterification modified presents amorphous state.and ECS even exhibits mesoporous structure.Additionally, the appearances of mesoporous structure and rough morphology were helpful to improve the oil absorbency and floating ability of the ECS.关键词
玉米秸秆/酯化改性/吸油材料Key words
corn stalk/esterifying modification/oil absorbent material分类
化学化工引用本文复制引用
刘晓晖,曹亚峰,李沅,刘兆丽,谭凤芝..玉米秸秆基吸油材料的制备与表征[J].林产化学与工业,2016,36(5):37-44,8.基金项目
辽宁省海洋与渔业厅资助项目(201405) （201405）
