Abstract

A type of polyaniline (PANI) and itaconic acid (IA) with Fe₃O₄@PANI/IA magnetic nanocomposite was prepared via in-situ polymerization method. The Cr(VI) removal potential was examined in this work. Langmuir adsorption isotherm and Freundlich adsorption isotherm experiments was done in batch methods. Some parameters such as pH effect, dosage, contact time, and concentration of solutions were investigated in batch experiments. Structure and morphology of the nanocomposite were well characterized by FT-IR spectra, SEM, TEM, TGA/DTA, VSM, EDS and XRD studies. The results shows that the percentage of Cr(VI) removal (92.2%) has enhanced in PANI with IA nanocomposite. Considering all these results that the Fe₃O₄@PANI/IA nanocomposites have a promising adsorbent material for the removal of Cr(VI) ion from tannery wastewater.

Graphic Abstract

中文翻译：

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基于Fe 3 O 4 @聚苯胺/衣康酸的双响应（pH和磁性）纳米复合材料：制革废水中有毒六价铬的合成，表征和去除

摘要

通过原位聚合法制备了一种具有Fe ₃ O ₄ @ PANI / IA磁性纳米复合材料的聚苯胺（PANI）和衣康酸（IA）。在这项工作中检查了六价铬的去除潜力。Langmuir吸附等温线和Freundlich吸附等温线实验是分批进行的。在批处理实验中研究了一些参数，例如pH值效果，剂量，接触时间和溶液浓度。通过FT-IR光谱，SEM，TEM，TGA / DTA，VSM，EDS和XRD研究很好地表征了纳米复合材料的结构和形态。结果表明，具有IA纳米复合材料的PANI中的Cr（VI）去除百分比（92.2％）有所提高。考虑到所有这些结果，Fe ₃ O ₄@ PANI / IA纳米复合材料具有从皮革厂废水中去除Cr（VI）离子的有希望的吸附材料。

图形摘要