Removal of As(III) from Aqueous Solution Using Functionalized Ultrafine Iron Oxide Nanoparticles

Goswami, Ritusmita; Deb, Pritam; Thakur, Ritula; Sarma, Kamal; Basumallick, A.

doi:10.1080/01496395.2010.537728

Cited by 27 publications

(24 citation statements)

References 24 publications

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“…Epidemiological studies revealed that long-term exposure to arsenic-contaminated drinking water could lead to serious health problems such as hyperkeratosis, peripheral vascular diseases, diabetes, anemia, cancers, as well as disorders of the immune, nervous, and reproductive systems [1][2][3][4][5][6][7][8][9][10]. The inorganic species, including As(III) (arsenite) and As(V) (arsenate), are the main forms of arsenic in natural water.…”

Section: Introductionmentioning

confidence: 99%

Dispersion–precipitation synthesis of nanosized magnetic iron oxide for efficient removal of arsenite in water

Cheng

Wang

et al. 2015

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Dispersion–precipitation synthesis of nanosized magnetic iron oxide for efficient removal of arsenite in water

Cheng

Wang

et al. 2015

Journal of Colloid and Interface Science

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“…Moreover, arsenic ingestion was associated with skin, bladder, liver and lung cancer. Because of its toxicity, the arsenic content in drinking water over maximum admitted level by the World Health Organization (10μg As L -1 ) has a negative impact on the human health [1]- [8]. Valence of arsenic inorganic species depends on the redox conditions and pH of the underground waters.…”

Section: Introductionmentioning

confidence: 99%

A New Adsorbent for Arsenic Removal From Water

Ciopec

Hulka

Duțeanu

et al. 2018

WIT Transactions on Ecology and the Environment

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Water represents an essential resource for earth life and for all-natural processes. It is well known that in all developing countries the underground water resource represents the main source of drinking water and its contamination with arsenic presents a real problem. Thus, we have developed a new adsorbent based on cellulose doped with crown ethers (dibenzo-18-crown-6) functionalized with iron ions and used for the removal of arsenic from water. Usage of such extractants involves only a small amount of crown ether indicating higher efficiency of produced material, and, in order to improve the adsorbent properties and selectivity for arsenic removal, the modified cellulose was functionalized with iron ions. The new obtained adsorbent material was characterized by using energy dispersive X-ray analysis, scanning electron microscopy and Fourier Transform Infrared Spectroscopy. In order to investigate the adsorbent properties for arsenic removal equilibrium, kinetic and thermodynamic studies were performed. Arsenic adsorption from water onto a new adsorbent was studied under different experimental conditions such as reaction times, initial arsenic concentration and temperature. Obtained results show that the new produce adsorbent has a higher efficiency for arsenic removal, leading to lower residual concentration (under 10 µg As L-1-value accepted by WHO).

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“…Nano-sized magnetic iron oxide particles have been studied as a new adsorbent with a large surface area and small diffusion resistance [1] for the separation and removal of chemical species such as metals [1][2][3][4][5][6][7], dyes [8][9][10], and gases [1]. Considerable attention has been paid to the combination of organic groups and inorganic magnetic Fe3O4 particles at the nano-sized level because of their high specific surface area and the absence of internal diffusion resistance compared to traditional micron-sized supports [11,12]. It is easy to change the chemical characteristics of the adsorbent surface by chemical modification of the surface.…”

Section: Introductionmentioning

confidence: 99%

Novel removal of Anthracene from oil-contaminated water by synthesized modified magnetic nano-particles

Torabian

Panahi

Bidhendi

et al. 2014

JAC

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Novel magnetic nanoparticles (MNPs) modified with (3-mercaptopropyl)-trimethoxysilane (MPTMS), grafted with allyl glycidyl ether and coupled with beta naphthol, were prepared for removal of anthracene in aqueous solutions. The grafted MNPs were characterized by transmission electron microscopy (TEM), infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA). The modified MNPs contributed to enhancement of the adsorption capacity and were prepared by co-precipitation. The modified MNPs were characterized by TEM, FT-IR and TGA and the adsorption and kinetic behavior of anthracene on the modified MNPs was examined. It was shown that the nano-adsorbent optimized adsorption capacity is at pH 7. Three kinetics models: pseudo-first-order, pseudo-second-order, and intraparticle diffusion were used to investigate the adsorption mechanism of the anthracene onto the modified MNPs. The best fit was obtained for the pseudo-second-order model. The synthesized nano adsorbent can be considered as a new method for anthracene adsorption in contaminated water with the benefit of fast removal by applying a magnetic field.

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Removal of As(III) from Aqueous Solution Using Functionalized Ultrafine Iron Oxide Nanoparticles

Cited by 27 publications

References 24 publications

Dispersion–precipitation synthesis of nanosized magnetic iron oxide for efficient removal of arsenite in water

Dispersion–precipitation synthesis of nanosized magnetic iron oxide for efficient removal of arsenite in water

A New Adsorbent for Arsenic Removal From Water

Novel removal of Anthracene from oil-contaminated water by synthesized modified magnetic nano-particles

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