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香菇下脚料对水体中十二烷基苯磺酸钠的吸附

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黄晓东, 娄本勇. 香菇下脚料对水体中十二烷基苯磺酸钠的吸附[J]. 环境工程学报, 2013, 7(2): 433-438.
引用本文: 黄晓东, 娄本勇. 香菇下脚料对水体中十二烷基苯磺酸钠的吸附[J]. 环境工程学报, 2013, 7(2): 433-438.
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Huang Xiaodong, Lou Benyong. Adsorption of sodium dodecylbenzenesulfonate from aqueous solutions by lentinus deodes residue[J]. Chinese Journal of Environmental Engineering, 2013, 7(2): 433-438.
Citation: Huang Xiaodong, Lou Benyong. Adsorption of sodium dodecylbenzenesulfonate from aqueous solutions by lentinus deodes residue[J]. Chinese Journal of Environmental Engineering, 2013, 7(2): 433-438.
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香菇下脚料对水体中十二烷基苯磺酸钠的吸附

  • 1.

    闽江学院化学与化学工程系,福州 350108

  • 基金项目:

    国家自然科学基金资助项目(20901037)

    福建省教育厅基金资助项目(2011JB11143)

    闽江学院科技启动项目(YKQ1005)

  • 中图分类号: X703.1

Adsorption of sodium dodecylbenzenesulfonate from aqueous solutions by lentinus deodes residue

  • 1.

    Department of Chemistry and Chemical Engineering, Minjiang University, Fuzhou 350108, China

  • Fund Project:

  • 摘要: 香菇下脚料经甲醛/硫酸混合溶液处理后制备成吸附剂。研究了吸附剂对SDBS的吸附性能,考察了溶液pH值、吸附剂粒径、初始浓度、吸附时间、浓度和温度的影响。结果表明,吸附适宜条件的为:pH 4.0,吸附时间60 min,吸附过程可以很好地用准二级动力学方程描述,吸附等温线用Langmuir方程的拟合效果优于Freundlich和Tempkin方程。在热力学研究中,ΔG0 H0>0,ΔS0>0,表明此吸附过程是自发、吸热和熵增加的过程。
    Abstract: The lentinus deodes residue(LDR) were prepared as an adsorbent by mixed solution of formaldehyde/sulphuric acid, and the adsorbent were investigated in relation to its adsorption behavior for sodium dodecylbenzenesulfonate(SDBS). The effects of solution pH, particle size, initial concentration, adsorption time, concentration and temperature were considered. It showed that pH of 4.0 and shaking time of 60 min were the optimal conditions for adsorption of SDBS. The adsorption process followed a pseudo-second order equation and the equilibrium isotherm was best described by the Langmuir model rather than the Freundlich and Tempkin model. In thermodynamic studies, the parameters of ΔG0 0>0 and ΔS0>0 indicated that the adsorption process was spontaneous and endothermic with a increase in entropy.
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出版历程
  • 收稿日期:  2012-03-11
  • 刊出日期:  2013-02-02

香菇下脚料对水体中十二烷基苯磺酸钠的吸附

  • 1. 闽江学院化学与化学工程系,福州 350108
  • 收稿日期:  2012-03-11
基金项目:

国家自然科学基金资助项目(20901037)

福建省教育厅基金资助项目(2011JB11143)

闽江学院科技启动项目(YKQ1005)

摘要: 香菇下脚料经甲醛/硫酸混合溶液处理后制备成吸附剂。研究了吸附剂对SDBS的吸附性能,考察了溶液pH值、吸附剂粒径、初始浓度、吸附时间、浓度和温度的影响。结果表明,吸附适宜条件的为:pH 4.0,吸附时间60 min,吸附过程可以很好地用准二级动力学方程描述,吸附等温线用Langmuir方程的拟合效果优于Freundlich和Tempkin方程。在热力学研究中,ΔG0 H0>0,ΔS0>0,表明此吸附过程是自发、吸热和熵增加的过程。

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