注册 English

硅胶的表面硫醇化改性及对水溶液中罗丹明B的固载

杨汉培 ,  俞咪虹 ,  傅小飞 ,  吴俊明

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引用本文: 杨汉培, 俞咪虹, 傅小飞, 吴俊明. 硅胶的表面硫醇化改性及对水溶液中罗丹明B的固载[J]. 无机化学学报, 2015, (3): 571-579. doi: 10.11862/CJIC.2015.064 shu
Citation:  YANG Han-Pei, YU Mi-Hong, FU Xiao-Fei, WU Jun-Ming. Thiolated Silica Gel: Synthesis and Immobilization of Rhodamine B from Aqueous Solution[J]. Chinese Journal of Inorganic Chemistry, 2015, (3): 571-579. doi: 10.11862/CJIC.2015.064 shu

硅胶的表面硫醇化改性及对水溶液中罗丹明B的固载

  • 1.

    1 河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 河海大学环境学院, 南京 210098;

  • 2.

    2 河海大学淮安研究院, 淮安 223001

    • 通讯作者: 杨汉培 yanghanpei@hhu.edu.cn
  • 基金项目:

    河海大学淮安研究院开放基金(No.1061-51402012) (No.1061-51402012)

    江苏省高校优势学科建设工程资助项目。 

摘要: 运用γ-巯丙基三乙氧基硅烷对硅胶表面硫醇化修饰改性, 红外及拉曼光谱分析表明硅胶的表面硫醇化借助硅胶表面羟基与γ-巯丙基二乙氧基硅烷间的化学键联实现。实验条件下改性硅胶对水体罗丹明B的吸附性能明显提升, 改性硅胶表面罗丹明B的吸附动力学符合准二级动力学模型, 吸附等温线服从Langmuir等温线规律, 由等温吸附计算得到的热力学函数变化表明吸附系自发、放热过程。吸附动力学、热力学及光谱表征均表明改性硅胶上罗丹明B的吸附主要为其在改性硅胶表面借助电价和共价键联的化学吸附。

English

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  • 收稿日期:  2014-10-04
  • 网络出版日期:  2014-12-09
通讯作者: 陈斌, bchen63@163.com
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