文献类型： 外文期刊
作者： Zhu, Kunkun 1 ; Gong, Xiao 1 ; He, Dongning 1 ; Li, Bin 2 ; Ji, Desheng 2 ; Li, Puwang 1 ; Peng, Zheng 1 ; Luo, Yongyue 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Zhanjiang 524001, Peoples R China
2.Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Peoples R China
期刊名称：RSC ADVANCES （ 影响因子：3.361； 五年影响因子：3.39 ）
ISSN： 2046-2069
年卷期： 2013 年 3 卷 47 期
页码：
收录情况： SCI
摘要： Tilapia fish scale, which facilitates both surface adsorption by hydroxyapatite and electrostatic interaction by collagen after boiling in alkaline environment, was used to prepare an adsorbent for the removal of the hazardous azo dye, Ponceau 4R. The prepared adsorbent was characterized by SEM, FT-IR and physical adsorption studies. Adsorption of Ponceau 4R by the prepared adsorbent was achieved under different initial Ponceau 4R concentrations, fish scale adsorbent doses, temperatures and pH conditions. The Freundlich isotherm model represented the experimental data very well. Kinetic studies indicated that the adsorption process followed the pseudo-second-order model and the theoretical maximum adsorption capacity of the fish scale adsorbent was 134.40 mg g(-1). The adsorption thermodynamics study indicated that the adsorption process was a spontaneous and exothermic process.
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