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首页> 外文会议>International Conference on Advanced Materials for Better Future >α-keratin/Alginate Biosorbent for Removal of Methylene Blue on Aqueous Solution in a Batch System
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α-keratin/Alginate Biosorbent for Removal of Methylene Blue on Aqueous Solution in a Batch System

机译：α-角蛋白/藻酸盐生物吸附剂，用于在批量系中除去水溶液上的亚甲基蓝

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Methylene Blue (MB) is a cationic dyes which is commonly used in textile industries for coloring agent. The precence of MB in water caused some negative effect on the environment and human health. Many common technologies such as membrane filtration, electrophoresis and adsorption have been widely empolyed for removal of MB in water, but the adsorption technique still has advantages than the others. In this study, removal of MB used a biosorbent α-keratin/alginate (KA). The biosorbent KA was prepared by using the encapsulation technique in CaCl2 2 ％ (w/v) solution. The biosorbent was characterized by Fourier Transform Infrared (FTIR) and Scanning Electron Microscope (SEM). The effect of composition of α-keratin and alginate, the pH of solution and contact time on the adsorption were investigated. The optimum adsorption of MB in aqueous solution was found at the composition of a-keratin and alginate of 1:2 (w/w), the pH at 5.0 and contact time at 4 hours. The adsorption of MB on KA biosorbent was comparatively higher than a-keratin and alginate only. Adsorption of MB dyes in aqueous solution followed the Langmuir adsorption isotherm, and the dynamic adsorption model could be described through a pseudo-second order kinetics.
机译：亚甲基蓝（MB）是阳离子染料，其常用于着色剂的纺织工业。 MB在水中的预期对环境和人类健康产生了一些负面影响。许多常见技术如膜过滤，电泳和吸附已被广泛地仿死水中的MB，但吸附技术仍然具有比其他方式的优势。在该研究中，除去Mb使用生物吸附剂α-角蛋白/藻酸盐（Ka）。通过使用CaCl 2 2％（w / v）溶液中的包封技术制备生物吸附剂Ka。通过傅里叶变换红外（FTIR）和扫描电子显微镜（SEM）的特征在于生物吸附剂。研究了α-角蛋白和藻酸盐组合物，溶液pH和接触时间对吸附的影响。在α角蛋白和藻酸盐的组合物中发现Mb在水溶液中的最佳吸附，1：2（w / w），pH值为5.0的pH值并在4小时内接触时间。 Ka生物吸附剂对Mb的吸附相对高于A-角蛋白和藻酸盐。 Mb染料在水溶液中的吸附，然后通过伪二次阶动力学描述朗米尔吸附等温线，并且动态吸附模型可以描述。

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