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活性染料K-2BP、KN-B和KN-R在椰壳活性炭上的脱色性能

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钱永, 龚菁, 庄俊涛, 吴磊, 王建军, 杨海. 活性染料K-2BP、KN-B和KN-R在椰壳活性炭上的脱色性能[J]. 环境工程学报, 2013, 7(6): 2225-2232.
引用本文: 钱永, 龚菁, 庄俊涛, 吴磊, 王建军, 杨海. 活性染料K-2BP、KN-B和KN-R在椰壳活性炭上的脱色性能[J]. 环境工程学报, 2013, 7(6): 2225-2232.
shu
Qian Yong, Gong Jing, Zhuang Juntao, Wu Lei, Wang Jianjun, Yang Hai. Decolorization of K-2BP, KN-B and KN-R onto activated carbon derived from coconut shell[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2225-2232.
Citation: Qian Yong, Gong Jing, Zhuang Juntao, Wu Lei, Wang Jianjun, Yang Hai. Decolorization of K-2BP, KN-B and KN-R onto activated carbon derived from coconut shell[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2225-2232.
shu

活性染料K-2BP、KN-B和KN-R在椰壳活性炭上的脱色性能

  • 1.

    苏州科技大学化学与生物工程学院, 苏州 215009

  • 2.

    江苏省环境功能材料重点实验室, 苏州 215009

  • 基金项目:

    住房和城乡建设部2011年科学技术项目计划(2011-K4-2)

    环境化学与生态毒理学国家重点实验室开放基金项目(KF2010-11)

    苏州市应用基础研究计划项目(SYG201123)

  • 中图分类号: X506

Decolorization of K-2BP, KN-B and KN-R onto activated carbon derived from coconut shell

  • 1.

    School of Chemical and Biological Engineering, Suzhou University of Science and Technology, Suzhou 215009, China

  • 2.

    Jiangsu Key Laboratory of Environmental Functional Material, Suzhou 215009, China

  • Fund Project:

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  • 摘要: 开展椰壳活性炭对活性染料K-2BP、KN-B和KN-R的吸附脱色研究。发现K-2BP、KN-B和KN-R在该型活性炭上的吸附脱色率均随初始pH值的降低、温度的升高、染料初始浓度的降低、活性炭用量的增加以及NaCl盐度的增加而增加。在pH=7和T=25℃下,K-2BP、KN-B和KN-R在活性炭上的等温吸附规律符合Langmuir模型方程,最大饱和吸附量Qmax分别为263.15、256.41和250 mg/g,吸附自由能△G298 K 分别为-10.632、-3.783和-2.805 kJ/mol;该条件下K-2BP、KN-B和KN-R的动力学吸附规律均符合准一级动力学吸附方程。等温吸附研究和吸附动力学研究均表明,相同条件下3种活性染料在该型活性炭上的吸附效果由高到低的顺序为:K-2BP>KN-B>KN-R。
    Abstract: Adsorption of reactive dye K-2BP, KN-B and KN-R onto activated carbon derived from coconut shell was investigated. It was found that the decolorization efficiencies of K-2BP, KN-B and KN-R on the activated carbon all increase with the increase of temperature, doses of activated carbon and NaCl concentration and with the decrease of initial pH and initial reactive dye concentration. Under pH=7 and T=25℃, the adsorption isotherm study indicated that the equilibrium data are successfully fitted to Langmuir adsorption isotherm with the Qmax of K-2BP, KN-B and KN-R are 263.15, 256.41 and 250 mg/g, respectively, and the adsorption △G298 K of the three dyes are calculated as-10.632,-3.783 and-2.805 kJ/mol, respectively. Under the same conditions as that of adsorption isotherm, the kinetic studies indicated that the adsorption rate data of the three reactive dyes can be explained by pseudo first-order kinetic model. According to the studying results of adsorption isotherm and kinetics, the order of adsorbing decolorization effect of the reactive dyes from high to low is as K-2BP>KN-B>KN-R.
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  • 收稿日期:  2011-12-24
  • 刊出日期:  2013-06-11
钱永, 龚菁, 庄俊涛, 吴磊, 王建军, 杨海. 活性染料K-2BP、KN-B和KN-R在椰壳活性炭上的脱色性能[J]. 环境工程学报, 2013, 7(6): 2225-2232.
引用本文: 钱永, 龚菁, 庄俊涛, 吴磊, 王建军, 杨海. 活性染料K-2BP、KN-B和KN-R在椰壳活性炭上的脱色性能[J]. 环境工程学报, 2013, 7(6): 2225-2232.
shu
Qian Yong, Gong Jing, Zhuang Juntao, Wu Lei, Wang Jianjun, Yang Hai. Decolorization of K-2BP, KN-B and KN-R onto activated carbon derived from coconut shell[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2225-2232.
Citation: Qian Yong, Gong Jing, Zhuang Juntao, Wu Lei, Wang Jianjun, Yang Hai. Decolorization of K-2BP, KN-B and KN-R onto activated carbon derived from coconut shell[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2225-2232.
shu

活性染料K-2BP、KN-B和KN-R在椰壳活性炭上的脱色性能

  • 1.  苏州科技大学化学与生物工程学院, 苏州 215009
  • 2.  江苏省环境功能材料重点实验室, 苏州 215009
  • 收稿日期:  2011-12-24
基金项目:

住房和城乡建设部2011年科学技术项目计划(2011-K4-2)

环境化学与生态毒理学国家重点实验室开放基金项目(KF2010-11)

苏州市应用基础研究计划项目(SYG201123)

摘要: 开展椰壳活性炭对活性染料K-2BP、KN-B和KN-R的吸附脱色研究。发现K-2BP、KN-B和KN-R在该型活性炭上的吸附脱色率均随初始pH值的降低、温度的升高、染料初始浓度的降低、活性炭用量的增加以及NaCl盐度的增加而增加。在pH=7和T=25℃下,K-2BP、KN-B和KN-R在活性炭上的等温吸附规律符合Langmuir模型方程,最大饱和吸附量Qmax分别为263.15、256.41和250 mg/g,吸附自由能△G298 K 分别为-10.632、-3.783和-2.805 kJ/mol;该条件下K-2BP、KN-B和KN-R的动力学吸附规律均符合准一级动力学吸附方程。等温吸附研究和吸附动力学研究均表明,相同条件下3种活性染料在该型活性炭上的吸附效果由高到低的顺序为:K-2BP>KN-B>KN-R。

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