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

被引：20
作者：
Shahriman, Mohamad Shariff [1 ]
Zain, Nur Nadhirah Mohamad [1 ]
Mohamad, Sharifah [2 ,3 ]
Manan, Ninie Suhana Abdul [2 ,3 ]
Yaman, Suhaila Mohd [2 ]
Asman, Saliza [4 ]
Raoov, Muggundha [2 ,3 ]
机构：
[1] Univ Sains Malaysia, AMDI, Integrat Med Cluster, Kepala Batas 13200, Pulau Pinang, Malaysia
[2] Univ Malaya, Fac Sci, Dept Chem, Kuala Lumpur 50603, Malaysia
[3] Univ Malaya, Fac Sci, Dept Chem, UMCIL, Kuala Lumpur 50603, Malaysia
[4] Univ Tun Hussein Onn Malaysia, Dept Phys & Chem, Fac Appl Sci & Technol, Muar 84000, Johor, Malaysia
来源：
RSC ADVANCES | 2018年 / 8卷 / 58期
关键词：
IRON-OXIDE NANOPARTICLES; SOLID-PHASE EXTRACTION; MALACHITE-GREEN; METHYLENE-BLUE; INDUSTRY WASTE; DYE REMOVAL; ADSORPTION; EQUILIBRIUM; SORPTION; POLYMER;
D O I：
10.1039/c8ra06687f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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 Delta G degrees 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 Delta H degrees (-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.
引用
收藏
页码：33180 / 33192
页数：13
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