Removal of Arsenic (III) from natural contaminated water using magnetic nanocomposite: kinetics and isotherm studies

Sadeghi, Marzieh; Irandoust, Mohsen; Khorshidi, Fatemeh; Feyzi, Mostafa; Jafari, Faranak; Shojaeimehr, Tahereh; Shamsipur, Mojtaba

doi:10.1007/s13738-016-0832-z

Cited by 17 publications

(3 citation statements)

References 70 publications

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“…The process of adsorption of arsenite on synthesized composite was also explained by isotherms (Langmuir and Frendulich), kinetic and intraparticle diffusion model (IPD). Theoretical and experimental qe values suggested that sorption of As (III) followed the second order kinetics reactions [72].…”

Section: Main Textmentioning

confidence: 99%

Titanium-based nanocomposite materials for arsenic removal from water: A review

Ashraf

Siddiqa

Shahida

et al. 2019

Heliyon

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Arsenic is highly carcinogenic element and less concentration of this chemical element makes natural water unsafe for human consumption. Versatile techniques including adsorption method have been established to remove the arsenic from water. However, adsorption is found to be one of effective method for the remediation of arsenic from contaminated water. Different types of natural adsorbents i.e. clays, waste materials, carbon based material have been studied widely for the adsorption of arsenic. Recently, nanotechnology is considered to be one of the best technology for waste water treatment. Therefore researchers have synthesized several types of nanoadsorbents and investigated them for the removal of various pollutants including arsenic from water. Now days, attention is paid on development of nanocomposite materials which are proven as competent arsenic adsorbent candidate as compared to other adsorbents due to dominant structural and surface features. Various metal/metal oxide based nanocomposites have been developed and studied for arsenic removal from aqueous media. It has been reported that TiO 2 based nanocomposite exhibit stong affinity for both inorganic form of arsenic. Therefore, in this review numerous metal or metal oxide based titania nanocomposites i.e. TiO 2 -αFe 2 O 3 , NHITO, Ce-Ti oxide, Zr-TiO 2, RGO-MFT etc. have been discussed in details for the water treatment containing arsenic. This review also presents an overview of low cost adsorbents, titania based nanoadsorbent and hybrid titania nanostructures for the removal of arsenic. In this review paper the particle size, surface area and adsorption efficiency of these titania based materials at different pH are also been presented in tabulated form. It provides the opportunity to choose best titania based nanocomposites for the treatment of arsenic polluted water.

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Section: Main Textmentioning

confidence: 99%

Titanium-based nanocomposite materials for arsenic removal from water: A review

Ashraf

Siddiqa

Shahida

et al. 2019

Heliyon

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“…The intraparticle diffusion model is often used to identify diffusion mechanisms [ 23 , 25 , 26 , 27 , 28 , 30 , 31 ]. In this model, the rate of intraparticle diffusion is a function of t 0.5 and can be determined as follows:

where k i is the intraparticle diffusion rate constant, (mg/g.min 0.5 ).…”

Section: Results and Discursionmentioning

confidence: 99%

Amino-Functionalized Fe3O4@SiO2 Core-Shell Magnetic Nanoparticles for Dye Adsorption

et al. 2021

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Fe3O4@SiO2 core-shell nanoparticles (NPs) were synthesized with the co-precipitation method and functionalized with NH2 amino-groups. The nanoparticles were characterized by X-ray, FT-IR spectroscopy, transmission electron microscopy, selected area electron diffraction, and vibrating sample magnetometry. The magnetic core of all the nanoparticles was shown to be nanocrystalline with the crystal parameters corresponding only to the Fe3O4 phase covered with a homogeneous amorphous silica (SiO2) shell of about 6 nm in thickness. The FT-IR spectra confirmed the appearance of chemical bonds at amino functionalization. The magnetic measurements revealed unusually high saturation magnetization of the initial Fe3O4 nanoparticles, which was presumably associated with the deviations in the Fe ion distribution between the tetrahedral and octahedral positions in the nanocrystals as compared to the bulk stoichiometric magnetite. The fluorescent spectrum of eosin Y-doped NPs dispersed in water solution was obtained and a red shift and line broadening (in comparison with the dye molecules being free in water) were revealed and explained. Most attention was paid to the adsorption properties of the nanoparticles with respect to three dyes: methylene blue, Congo red, and eosin Y. The kinetic data showed that the adsorption processes were associated with the pseudo-second order mechanism for all three dyes. The equilibrium data were more compatible with the Langmuir isotherm and the maximum adsorption capacity was reached for Congo red.

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“…In recent years, applications of nanomaterials for the removal of dyes from water have received increasing attention [26]. Magnetic iron oxide nanoparticles (MNPs) due to their large surface area, high adsorption capacity, and low diffusion resistance are utilized for the removal of dyes as well as other pollutants such as toxic metals from water streams [27] [28] [29]. Surface modification of iron oxide nanoparticles is an effective way to enhance stability, novel properties and possibilities of application.…”

Section: Introductionmentioning

confidence: 99%

Efficient Removal of Reactive Orange 107 Dye from Aqueous Media by Shrimp Shell Derived Chitosan Functionalized Magnetic Nanoparticles

Saba¹,

Minhas²,

Malik³

et al. 2018

AJAC

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In present work chitosan functionalized magnetic nanoparticles (CMNPs) were successfully prepared and investigated for the removal of Reactive Orange 107 dye (RO 107) from water. The chitosan was extracted from shrimp shells (Penaeus merguiensis) and was characterized by solubility test and fourier transform infrared spectroscopy (FTIR). Degree of deacetylation of chitosan was examined by 1 H-NMR and potentiometric titration method. Thereafter, the chitosan was used for synthesis of CMNPs. The synthesized CMNPs were characterized by FTIR, scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS), thermal gravimetric analysis (TGA) and atomic force microscopy (AFM). Effects of various variables such as contact time, pH, stirring speed, adsorbent dosage, temperature, and concentration of electrolyte on extraction efficiency were evaluated. Freundlich isotherm model fits better that shows the removal of RO 107 with CMNPs by multilayer adsorption behaviour. Furthermore, kinetic study showed that adsorption process followed pseudo-second order kinetic model regulated by chemisorption. Thermodynamic analysis explained that adsorption of RO 107 onto CMNPs was endothermic as well as spontaneous. The developed CNMPs were applied to environmental remediation of spiked RO 107 treated waste water samples with 96.20% removal potential, hence, offered an effective sorbent for removal of RO 107 contaminated water samples.

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Removal of Arsenic (III) from natural contaminated water using magnetic nanocomposite: kinetics and isotherm studies

Cited by 17 publications

References 70 publications

Titanium-based nanocomposite materials for arsenic removal from water: A review

Titanium-based nanocomposite materials for arsenic removal from water: A review

Amino-Functionalized Fe3O4@SiO2 Core-Shell Magnetic Nanoparticles for Dye Adsorption

Efficient Removal of Reactive Orange 107 Dye from Aqueous Media by Shrimp Shell Derived Chitosan Functionalized Magnetic Nanoparticles

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