Preparation of inexpensive modified polystyrene with adipoyl chloride and N-benzimidazole iminoesther for the removal of Ni2+ and study of the impedance and conductivity of the obtained complex

Polymers and Polymer Composites Pub Date : 2024-05-06 DOI:10.1177/09673911241251620

Ben Smida Nourhene, Othmani Abdelhak, Abderrahim Raoudha

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Abstract

We used, in this work, a potentially effective adsorbent for removing nickel (Ni2+) from wastewater, employing modified polystyrene; the di-acylated polystyrene with iminoether (DIPS-N-Ac-Imi). The product was utilized for the adsorption of Ni(II) from waste water at ambient temperature. The di-acylated polystyrene with iminoether DIPS-N-Ac-Imi and DIPS-N-Ac-Imi/Ni2+ were characterized using infrared spectroscopy (FT-IR), thermogravimetry, and X-ray diffraction (XRD). Subsequently, the percentage of adsorption of DIPS-N-Ac-Imi/Ni2+ was determined via atomic absorption spectroscopy. An electrical study of DIPS-N-Ac-Imi/Ni2+ was performed using Impedance Spectroscopy, revealing a stimulated thermal conduction mechanism. Based on conductivity analyses, the activation energy was deduced from the Arrhenius diagram and corresponded to Ea = 1.07 eV, which suggests that DIPS-N-Ac-Imi/Ni2+ is a proton-type semiconductor.

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用己二酸酰氯和 N-苯并咪唑亚氨基醚制备去除 Ni2+ 的廉价改性聚苯乙烯，并研究所得复合物的阻抗和电导率

在这项工作中，我们利用改性聚苯乙烯（含亚胺醚的二乙酰化聚苯乙烯（DIPS-N-Ac-Imi））作为去除废水中镍（Ni2+）的潜在有效吸附剂。该产品用于在常温下吸附废水中的镍（II）。使用红外光谱（FT-IR）、热重仪和 X 射线衍射（XRD）对含亚胺醚的二乙酰化聚苯乙烯 DIPS-N-Ac-Imi 和 DIPS-N-Ac-Imi/Ni2+ 进行了表征。随后，通过原子吸收光谱测定了 DIPS-N-Ac-Imi/Ni2+ 的吸附百分比。利用阻抗光谱对 DIPS-N-Ac-Imi/Ni2+ 进行了电学研究，发现了一种受激热传导机制。根据电导率分析，从阿伦尼乌斯图推断出活化能为 Ea = 1.07 eV，这表明 DIPS-N-Ac-Imi/Ni2+ 是一种质子型半导体。

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Polymers and Polymer Composites

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