摘要
以10-脱乙酰巴卡亭Ⅲ(10-DAB)为模板,4-乙烯基吡啶(4-VP)为功能单体,制备出对10-DAB具有高选择吸附性的10-DAB分子印迹纳米微球(10-DAB-MINs),最高吸附量可达37.42 mg/g。通过扫描电子显微镜(SEM)、傅里叶变换红外光谱(FT-IR)仪及热重分析(TG)仪对10-DAB-MINs进行表征,证明该聚合物成功合成。10-DAB-MINs的吸附过程与准二级吸附动力学模型相吻合,R^(2)为0.979 5;10-DAB-MINs的吸附过程符合Langmuir-Freundlich吸附等温线模型,R^(2)为0.982 7;10-DAB-MINs相较不加模板的分子印迹纳米微球(NINs)有较好的重复利用性,重复使用5次吸附量仍达到28.66 mg/g,具有良好的稳定性。
Molecular imprinted nanospheres(MINs) with high selective adsorption to 10-deacetyl baccatin Ⅲ(10-DAB) was prepared by 10-DAB as template molecule, and 4-vinylpyridine(4-VP) was used as functional monomer. The maximum adsorption capacity reached to 37.42 mg/g. The polymer was characterized by scanning electron microscope(SEM), Fourier transform infrared spectroscopy(FT-IR) and thermogravimetric(TG) analysis, which indicated that it was successfully synthesized. The adsorption kinetics of 10-DAB-MINs could be well described by the pseudo-second-order model, and R^(2) was 0.979 5. Meanwhile, the adsorption mechanism conformed to the Langmuir-Freundlich model, and R^(2) was 0.982 7. The cyclic adsorption results showed that 10-DAB-MINs had better recycling ability than that of the template free molecular imprinted nanaspheres(NINs). Furthermore, the adsorption capacity of 10-DAB-MINs could still reach 28.66 mg/g after recycling for 5 times, which indicated the good stability.
作者
王奕洁
江哲恒
孙雯佳
武晓丹
曹劲松
付玉杰
WANG Yijie;JIANG Zheheng;SUN Wenjia;WU Xiaodan;CAO Jingsong;FU Yujie(Key Laboratory of Forestplant Ecology,Ministry of Education,Northeast Forestry University,Harbin 150040,China;College of Chemical Engineering and Resource Utilization,Northeast Forestry University,Harbin 150040,China)
出处
《林产化学与工业》
CAS
CSCD
北大核心
2022年第5期91-99,共9页
Chemistry and Industry of Forest Products
基金
国家自然科学基金资助项目(31770619)
中央高校基本科研业务费专项资金资助项目(2572020DR07)
东北林业大学大学生创新项目(202010225101)。
