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Comments on “Simultaneous Adsorption of Aniline and Cr(VI) Ion by Activated Carbon/Chitosan Composite”

机译:关于“活性炭/壳聚糖复合材料同时吸附苯胺和Cr(VI)离子的评论”

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摘要

Recently, Huang et al. published the article entitled “Simultaneous adsorption of aniline and Cr(VI) ion by activated carbon/chitosan composite.” In Section Adsorption Kinetics, authors presented “pseudo-second-order kinetic model” by the equation: 1/(q_t)=1/(k_2q_e~2)+1/(q_e) without any reference. This pseudosecond-order model is not correct. In fact, the pseudosecond-order kinetic expression for the adsorption systems of divalent metal ions using sphagnum moss peat has been presented. In 1997, a corrected pseudosecond-order kinetic expression was reported in a conference and journals in following years because a mistake was included in the previous publications. The pseudosecond-order kinetic model has a nonlinear form q_t=(q_e~2kt)/(1+q_ekt) and four linear forms, such as t/(q_t)=1/(kq_e~2) + 1/(q_e)t, 1/(q_t) = (1/(kq_e~2) 1/t + 1/(q_e), q_t=q_e-(1/(kq_e))(q_t)/t, and (q_t)/t=kq_e~2-kq_eq_t.
机译:最近,黄等人。发表了题为“活性炭/壳聚糖复合材料同时吸附苯胺和Cr(VI)离子的文章。”在“吸附动力学”部分中,作者通过以下公式提出了“伪二级动力学模型”:1 /(q_t)= 1 /(k_2q_e〜2)+ 1 /(q_e),没有任何参考。此伪二阶模型不正确。实际上,已经提出了使用泥炭藓泥炭吸附二价金属离子的系统的拟二级动力学表达。 1997年,由于在以前的出版物中包括一个错误,因此在随后的几年的会议和期刊中报告了一种校正的伪二级动力学表达。伪二阶动力学模型具有非线性形式q_t =(q_e〜2kt)/(1 + q_ekt)和四种线性形式,例如t /(q_t)= 1 /(kq_e〜2)+ 1 /(q_e)t ,1 /(q_t)=(1 /(kq_e〜2)1 / t + 1 /(q_e),q_t = q_e-(1 /(kq_e))(q_t)/ t和(q_t)/ t = kq_e 〜2-kq_eq_t。

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