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离子型超交联聚合物吸附罗丹明B

王科伟 午赵霞 刘慧君 郭永 崔晓娜 任斐 贾治芳

王科伟, 午赵霞, 刘慧君, 郭永, 崔晓娜, 任斐, 贾治芳. 离子型超交联聚合物吸附罗丹明B[J]. 功能高分子学报. doi: 10.14133/j.cnki.1008-9357.20211123001
引用本文: 王科伟, 午赵霞, 刘慧君, 郭永, 崔晓娜, 任斐, 贾治芳. 离子型超交联聚合物吸附罗丹明B[J]. 功能高分子学报. doi: 10.14133/j.cnki.1008-9357.20211123001
WANG Kewei, WU Zhaoxia, LIU Huijun, GUO Yong, CUI Xiaona, REN Fei, JIA Zhifang. Ionic Hypercrosslinked Polymer for Rhodamine B Adsorption[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20211123001
Citation: WANG Kewei, WU Zhaoxia, LIU Huijun, GUO Yong, CUI Xiaona, REN Fei, JIA Zhifang. Ionic Hypercrosslinked Polymer for Rhodamine B Adsorption[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20211123001

离子型超交联聚合物吸附罗丹明B

doi: 10.14133/j.cnki.1008-9357.20211123001
基金项目: 国家自然科学基金面上项目(21975146); 山西省省筹资金资助回国留学人员科研项目(2020-134); 山西省应用基础研究计划青年项目(201801 D221096); 大同市工业重点研发计划项目(2019028, 2018013)
详细信息
    作者简介:

    王科伟(1982—),男,博士,副教授,主要研究方向为有机多孔材料的设计及应用。E-mail:wangkewei@sxdtdx.edu.cn

    通讯作者:

    贾治芳,E-mail:jiazhifang@sxdtdx.edu.cn

  • 中图分类号: O631.5

Ionic Hypercrosslinked Polymer for Rhodamine B Adsorption

  • 摘要: 为了高效吸附废水中的可溶性有机染料,合成了一种磺酸钠离子(―SO3Na)修饰的超交联聚合物(HCP―SO3Na)。以4-苯胺基苯磺酸钠和苯为单体,二甲氧基甲烷为交联剂,在无水FeCl3催化下,经过付-克反应一步制得。通过元素分析、红外光谱、N2吸/脱附分析、固态核磁共振波谱和热重分析对HCP―SO3Na的结构和热性能进行了表征。结果表明,HCP–SO3Na是一种比表面积大、热稳定性强的无定形微孔有机聚合物,比表面积为587 m2/g,微孔面积为411 m2/g。通过对阳离子染料罗丹明B (RhB)的吸附研究表明,―SO3Na基团的引入,可增加HCP对RhB的饱和吸附量,最大吸附量达431 mg/g,吸附符合准二级动力学模型和Langmuir 模型;循环吸附5次之后,吸附性能无明显降低。

     

  • 图  1  HCP–SO3Na的合成

    Figure  1.  Synthesis of HCP–SO3Na

    图  2  (a) 4-苯胺基磺酸钠单体和HCP–SO3Na的FT-IR谱图; (b) HCP–SO3Na的13C-CP/MAS-NMR谱图

    Figure  2.  (a) FT-IR spectra of sodium 4-(phenylamino)benzenesulfonate and HCP–SO3Na; (b) Solid state 13C-CP/MAS-NMR spectrum of HCP–SO3Na

    图  3  (a) HCP–SO3Na的N2吸/解附等温曲线; (b) HCP–SO3Na的孔径分布曲线; (c) HCP–SO3Na的TGA和DTG曲线图

    Figure  3.  (a) N2 adsorption/desorption isotherms of HCP–SO3Na; (b) Pore size distribution of HCP–SO3Na; (c) TGA and DTG curves of HCP–SO3Na

    图  4  不同时间HCP–SO3Na对RhB和MO,及HCP–SO3H对RhB的吸附曲线

    Figure  4.  Adsorption curves of HCP–SO3Na for RhB and MO, and HCP–SO3H for RhB at different time

    图  5  HCP–SO3Na吸附RhB的(a)准一级动力学和(b)准二级动力学拟合曲线

    Figure  5.  Fitting lines of (a) pseudo-first-order model and (b) pseudo-second-order model of HCP–SO3Na for RhB

    图  6  HCP–SO3Na吸附RhB的(a) Langmuir等温方程式和(b) Freundlich等温方程式拟合曲线

    Figure  6.  Fitting lines of (a) Langmuir and (b) Freundlich isothermal equations of HCP–SO3Na for RhB

    图  7  HCP–SO3Na的吸附循环

    Figure  7.  Adsorption cycle of HCP–SO3Na

    表  1  HCP–SO3Na的元素组成

    Table  1.   Elemental composition of HCP–SO3Na

    SampleC/wt%H/wt%N/wt%S/wt%
    HCP–SO3Na66.85.41.62.5
    HCP–SO3Na1)67.95.02.02.8
    1) After five cycles.
    下载: 导出CSV

    表  2  HCP–SO3Na的比表面积和微孔参数

    Table  2.   Surface area and porosity of HCP–SO3Na

    SampleSBET1)/(m2·g−1)SL2)/(m2·g−1)SMA3)/(m2·g−1)V4)/(cm3·g−1)VM5)/(cm3·g−1)
    HCP–SO3Na5876474110.470.17
    HCP–SO3Na6)5746423850.410.16
    1) Surface area calculated from nitrogen adsorption isotherms using BET equation; 2) Surface area calculated from nitrogen adsorption isotherms using Langmuir equation; 3) t-Plot micropore area; 4) Pore volume calculated from nitrogen isotherm at P/P0 = 0.99; 5) t-Plot micropore volume; 6) The recycled HCP–SO3Na.
    下载: 导出CSV

    表  3  25 oC下HCP–SO3Na吸附RhB的动力学参数

    Table  3.   Kinetic parameters for RhB adsorption on to HCP–SO3Na at 25 oC

    SamplePseudo-first-order modelPseudo-second-order model
    HCP–SO3Naqe/(mg·g−1)k1R2qe/(mg·g−1)k2R2
    31.760.04740.960298.720.00490.9998
    下载: 导出CSV

    表  4  25 oC下HCP–SO3Na吸附RhB的吸附等温参数

    Table  4.   Adsorption isotherm parameters for RhB onto HCP-SO3Na at 25 oC

    SampleLangmuirFreundlich
    HCP–SO3Naqmax/(mg·g−1)KLR2KFnR2
    431.033.4670.9997283.2710.410.9446
    下载: 导出CSV
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  • 收稿日期:  2021-11-23
  • 录用日期:  2022-04-27
  • 网络出版日期:  2022-05-07

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