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涂覆双阳离子离子液体的聚苯胺修饰磁性纳米粒子用于从水溶液中有效去除罗丹明B（RB）。

Polyaniline modified magnetic nanoparticles coated with dicationic ionic liquid for effective removal of rhodamine B (RB) from aqueous solution.

作者信息

Shahriman Mohamad Shariff, Mohamad Zain Nur Nadhirah, Mohamad Sharifah, Abdul Manan Ninie Suhana, Yaman Suhaila Mohd, Asman Saliza, Raoov Muggundha

机构信息

Integrative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia 13200 Kepala Batas Pulau Pinang Malaysia.

Department of Chemistry, Faculty of Science, University of Malaya 50603 Kuala Lumpur Malaysia

出版信息

RSC Adv. 2018 Sep 26;8(58):33180-33192. doi: 10.1039/c8ra06687f. eCollection 2018 Sep 24.

DOI:10.1039/c8ra06687f
PMID:35548133
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9086441/
Abstract

Polyaniline (PANI) modified magnetic nanoparticle (MNP) nanocomposites coated with newly synthesized dicationic ionic liquid (DICAT) forming MNP-PANI-DICAT were successfully synthesized as a potential material for the removal of Rhodamine B (RB) from water samples. The synthesized material was successfully characterized using a few techniques such as Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), thermo gravimetric analysis (TGA), Brunauer-Emmett-Teller (BET), and transmission electron microscopy (TEM) analysis. Several parameters have been optimized to enhance the efficiency of the removal process. The adsorption kinetics were investigated and the results showed that MNP-PANI-DICAT was best fitted to a pseudo-second order model for the adsorption of RB. As for the isotherm studies, Temkin's model was found to fit well with the adsorption isotherm of RB on MNP-PANI-DICAT. Other than that, thermodynamics results showed negative values of Δ° for the adsorption of RB, which indicated that the process is thermodynamically feasible, spontaneous and chemically controlled at lower temperature. The negative value of enthalpy Δ° (-40.41) indicated that the adsorption was an exothermic process. The percentage removal of RB was found to be 94.7% by MNP-PANI-DICAT under optimized conditions.

摘要

成功合成了涂覆有新合成的二价离子液体（DICAT）的聚苯胺（PANI）修饰磁性纳米颗粒（MNP）纳米复合材料，即MNP-PANI-DICAT，作为从水样中去除罗丹明B（RB）的潜在材料。使用傅里叶变换红外光谱（FT-IR）、X射线粉末衍射（XRD）、热重分析（TGA）、布鲁诺尔-埃米特-特勒（BET）和透射电子显微镜（TEM）分析等多种技术对合成材料进行了成功表征。优化了几个参数以提高去除过程的效率。研究了吸附动力学，结果表明MNP-PANI-DICAT对RB的吸附最符合准二级模型。至于等温线研究，发现Temkin模型与RB在MNP-PANI-DICAT上的吸附等温线拟合良好。除此之外，热力学结果表明RB吸附的Δ°值为负，这表明该过程在热力学上是可行的、自发的，并且在较低温度下受化学控制。焓变Δ°的负值（-40.41）表明吸附是一个放热过程。在优化条件下，MNP-PANI-DICAT对RB的去除率为94.7%。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/39bc/9086441/64900245ace6/c8ra06687f-f10.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/39bc/9086441/64900245ace6/c8ra06687f-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/39bc/9086441/19e8dea5b2bd/c8ra06687f-f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/39bc/9086441/5984da2a9448/c8ra06687f-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/39bc/9086441/6abf62bf46a5/c8ra06687f-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/39bc/9086441/a1c2261706e1/c8ra06687f-f8.jpg
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