摘要
以氢化松香/甲基丙烯酸缩水甘油酯酯化物(HG)和苯乙烯(St)为单体,二甲基丙烯酸乙二醇酯(EGDMA)为交联剂,偶氮二异丁腈(AIBN)为引发剂,明胶为分散剂,利用悬浮聚合法制备了氢化松香基羟基化聚合物微球。利用红外光谱仪(FTIR)、激光粒度分析仪、扫描电镜(SEM)、热重分析仪(TGA)和X射线衍射仪(XRD)对微球的结构、形貌等进行表征分析。研究了吸附时间对苯酚吸附量的影响,并探讨其吸附过程的动力学。结果表明:制备的微球球形和耐热性好、粒径分布均匀,为无定型的非晶态结构。当苯酚溶液的初始浓度为100 mg·L^(-1),pH=7,固液比为1 g·L^(-1),303 K下吸附90 min时,微球对苯酚的吸附量达到13 mg·g^(-1)。微球对苯酚的吸附符合伪二级吸附动力学模型。
The hydrogenated rosin-based hydroxylated polymer microspheres were prepared by suspension polymerization,using hydrogenated rosin derived glycidyl methacylate ester(HG)and styrene(St)as monomers,ethyleneglycol dimethacrylate(EGDMA)as a crosslinking agent,gelatin as a dispersing agent,azodiisobutyronitrile(AIBN)as initiator.The structure and morphology of the polymer microspheres were characterized by Fourier transform infrared spectroscopy(FTIR),laser particle size analyzer,scanning electron microscope(SEM),thermogravimetry analysis(TGA)and X-ray diffractometer(XRD).Effect of adsorption time on phenol adsorption capacity was investigated and the kinetic characteristics in adsorption process were also studied.The results showed that the hydrogenated rosin-based hydroxylated polymer microspheres have good spherical shape,thermal stability,uniform particle size distribution and an amorphous state.The adsorption capacity was 13 mg·gwhen the initial concentration of phenol was 100 mg·L^(-1),solution pH was 7,the ratio of the solid to liquid at 1 g·L^(-1),temperature was 303 K and adsorption time was 90 min.The adsorption of phenol on microspheres follows the pseudo-second-order kinetic model.
作者
许建本
郑燕菲
黄莹莹
黄秋萍
何春玲
农克良
XU Jian-ben;ZHENG Yan-fei;HUANG Ying-ying;HUANG Qiu-ping;HE Chun-ling;NONG Ke-liang(College of Chemistry and Bioengineering,Guangxi Normal University for Nationalities,Chongzuo 532200,China;Guangxi Colleges and Universities Key Laboratory Breeding Base of Chemistry of Guangxi Southwest Plant Resources,Chongzuo 532200,China;College of Literature and Media,Guangxi Normal University for Nationalities,Chongzuo 532200,China)
出处
《高分子通报》
CAS
CSCD
北大核心
2022年第12期92-98,共7页
Polymer Bulletin
基金
广西自然科学基金项目(2020JJB120001)
广西民族师范学院科研经费资助项目(2020YB011,2021YB037,2021YB038)
广西高校中青年教师基础能力提升项目(2022KY0768,2022KY0769)
广西民族师范学院2022年度高层次人才项目(2022GCC001)。
关键词
氢化松香
微球
苯酚
吸附
动力学
Hydrogenated rosin
Microspheres
Phenol
Adsorption
Kinetics
