| 交联淀粉微球对对羟基苯甲醚的吸附行为及机理的探讨 |
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| 引用本文： | 苏秀霞,赵钤妃,李仲谨,景洁,支娟娟.交联淀粉微球对对羟基苯甲醚的吸附行为及机理的探讨[J].化工进展,2011,30(9):1926. |
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| 作者姓名： | 苏秀霞 赵钤妃 李仲谨 景洁 支娟娟 |
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| 作者单位： | 陕西科技大学化学与化工学院，教育部轻化工助剂化学与技术重点实验室，陕西 西安 710021 |
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| 基金项目： | 国家自然科学基金(50573046); 陕西省教育厅产业化培育项目(02JC05); 陕西科技大学研究生创新基金(SUST-B)项目 |
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| 摘 要： | 以可溶性淀粉为原料，通过反相悬浮聚合法，合成了一种交联淀粉微球（CSM）。研究了CSM对羟基苯甲醚的吸附行为，分析了其吸附动力学特性和热力学性质，并利用扫描电子显微镜（SEM）、傅里叶红外光谱仪（FTIR）和X射线衍射仪对淀粉微球及其吸附产物进行了表征，探讨其吸附机理。结果表明：在研究范围内，CSM对对羟基苯甲醚的吸附行为同时符合Langmuir和Freundlich等温吸附方程；在不同温度下，CSM吸附对羟基苯甲醚的吸附焓变（ΔH）、吸附熵变（ΔS）、吸附自由能变（ΔG）均为负值，吸附是一个自发、放热过程。
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| 关 键 词： | 交联淀粉微球 对羟基苯甲醚 吸附机理 动力学 热力学 |
Adsorption behavior and mechanism of crosslinked starch microspheres for p-hydroxyanisole |
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| SU Xiuxia,ZHAO Qianfei,LI Zhongjin,JING Jie,ZHI Juanjuan.Adsorption behavior and mechanism of crosslinked starch microspheres for p-hydroxyanisole[J].Chemical Industry and Engineering Progress,2011,30(9):1926. |
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| Authors: | SU Xiuxia ZHAO Qianfei LI Zhongjin JING Jie ZHI Juanjuan |
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| Affiliation: | Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry，Ministry of Education，College of Chemistry and Chemical Engineering，Shaanxi University of Science & Technology，Xi’an 710021，Shaanxi，China |
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| Abstract: | The crosslinked starch microspheres(CSM)were synthesized from soluble starch by inverse suspension polymerization.The adsorption behavior of CSM for p-hydroxyanisole was investigated.The kinetics and thermodynamics characteristics were also studied.The structures of CSM before and after adsorption were characterized by particle size analyzer,scanning electron microscope,FT-IR spectroscopy and X ray diffraction(XRD),and the mechanism of adsorption was also discussed.Within the framework of the study,the adso... |
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| Keywords: | crosslinked starch microspheres p-hydroxyanisole adsorption mechanism thermodynamics kinetics |
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