Synthesis and characterization of magnetic halloysite-iron oxide nanocomposite and its application for naphthol green B removal

Riahi-Madvaar, Ramin; Taher, Mohammad Ali; Fazelirad, Hamid

doi:10.1016/j.clay.2016.12.019

Cited by 59 publications

(13 citation statements)

References 22 publications

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“…1a). There are several elds of application for this smart nanomaterial, including drug transport and delivery, 10,[13][14][15][16][17][18][19] environmental remediation, 20-26 as a ller in polymeric matrices, 27-30 ame retardant 31 and support for catalysts 13,23 (Fig. 1b).…”

Section: 12mentioning

confidence: 99%

Halloysite nanotubes as support for metal-based catalysts

Massaro,

Colletti,

Lazzara

et al. 2017

J. Mater. Chem. A

248

106

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Halloysite nanotubes (HNTs) are clay minerals with a hollow nanotubular structure. There is growing interest in these nanomaterials, due to their biocompatibility, potential applications and availability. The surface Moreover, the presence of an empty lumen opens new perspectives for the production of nanoarchitectures with synergistic catalytic effects, due to the increase in local concentrations and confinement. The main focus of this review is the research on modified halloysite nanotubes for the preparation of valuable supports for metal nanoparticles and their applications in catalytic processes.

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Section: 12mentioning

confidence: 99%

Halloysite nanotubes as support for metal-based catalysts

Massaro,

Colletti,

Lazzara

et al. 2017

J. Mater. Chem. A

248

106

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“…Magnetic HNTs were prepared by reported co‐precipitation method with some modifications 31 . Briefly, HNTs (0.5 g) were dispersed in 120 mL DI water by the aid of probe sonication.…”

Section: Methodsmentioning

confidence: 99%

“…The sedimentary solution color change from orange to black indicated the synthesis of iron hydroxides. The mixture was stirred for 1 more hour and all the procedure was carried out under N 2 gas in order to eliminate the synthesis of Fe 2 O 3 NPs 31 . The final particles were washed thoroughly with water and dried in oven of 80°C for 24 hours.…”

Section: Methodsmentioning

confidence: 99%

Magnetic halloysite‐based molecularly imprinted polymer for specific recognition of sunset yellow in dyes mixture

Foroughirad

Haddadi‐Asl

Khosravi

et al. 2020

Polymers for Advanced Techs

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Novel magnetic halloysite‐based molecularly imprinted polymer (MMIP) is fabricated for sunset yellow dye removal from water solution. Field emission scanning electron microscopy, vibrating sample magnetometer, Zeta potential test, thermogravimetric, and nitrogen gas adsorption analysis were all employed for characterizations of the obtained magnetic halloysite and the final adsorbent. Transmission electron microscope images proved the synthesis of polymeric shell onto the magnetic nanotubes with the thickness of 10 nm. The adsorption kinetics were assessed by pseudo‐first order, pseudo‐second order, and intraparticle diffusion models and the results revealed that the obtained MMIP adsorption procedure would be controlled by chemical adsorption due to the high correlation coefficient (R2 ≥ 0.99) achieved for pseudo‐second order model. The effect of dye initial concentration was observed on the pseudo‐second order rate constant and the final equilibrium capacity of the MMIP. The adsorption isotherm at different temperatures (30 and 60°C) was assessed by two popular models, Langmuir and Freundlich. The resulting data were well fitted by Langmuir isotherm model, suggesting that the monolayer adsorption of sunset yellow onto the MMIP would occur. The exothermic behavior of the adsorption was justified by determining the effect of temperature on the Langmuir isotherm constant. The fabricated MMIP represented high adsorption capacity and imprinting factor of 46.43 μmol/g and 1.33, respectively. Moreover, the high selective recognition ability toward sunset yellow was observed for MMIP in the dyes mixture solution.

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“…It can cause several health problems [3]. Dye contamination poses a serious risk because conventional dyes usually exhibit a synthetic and complex chemical structure making them very stable and difficult to biodegrade [4,5]. Wastewater colour is one of the key water quality measures.…”

Section: Introductionmentioning

confidence: 99%

Potential Applications of Nanomaterials in Wastewater Treatment

Sanny

Kucmanová

Gerulová

et al. 2021

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

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Over the last few decades, nanotechnologies have gained a great deal of attention, and various nanomaterials and techniques have been developed for water remediation. This study deals with the adsorption of Naphthol green B onto the magnetite nanoparticles synthetized by the coprecipitation method at the laboratory temperature. According to the obtained results, the sorption process is obvious only at the acidic condition when the pH of solution decreases to pH level 3. According to nonlinear fit of experimental data, the sorption of the Naphthol green B onto magnetite nanoparticles is assumed as multilayer, while the Freundlich model fits better (96.158 %) than the Langmuir model does (55.941 %).

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Synthesis and characterization of magnetic halloysite-iron oxide nanocomposite and its application for naphthol green B removal

Cited by 59 publications

References 22 publications

Halloysite nanotubes as support for metal-based catalysts

Halloysite nanotubes as support for metal-based catalysts

Magnetic halloysite‐based molecularly imprinted polymer for specific recognition of sunset yellow in dyes mixture

Potential Applications of Nanomaterials in Wastewater Treatment

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