Rapid removal of uranium from aqueous solutions using magnetic Fe3O4@SiO2 composite particles

Fan, Fangli; Qin, Zhi; Bai, Jing; R, Weidong; Fan, Fuyou; Tian, Wei; Wu, Xianxin; Wang, Yang; Zhao, Liang

doi:10.1016/j.jenvrad.2011.11.003

Cited by 243 publications

(48 citation statements)

References 42 publications

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“…The increase of sorption with an increase sorbent amount may be attributed to the availability of more sorption sites. With the content of magnetic illite increase, the available sites on magnetic illite surfaces increase providing more sorption sites to adsorb U(VI) [8,28]. Similar results were reported by Xu et al [29] and Zhang et al [30].…”

Section: Effect Of Solid-to-liquid Ratiosupporting

confidence: 85%

“…ions exceeds several times than that of the U(VI) and the surface of magnetic illite is most likely adsorbed with H ? ions, reducing the number of binding sites for the sorption of U(VI) [8,21]. When pH increases, H ?…”

Section: Effects Of Ph and Ionic Strengthmentioning

confidence: 99%

“…Among these processes, sorption is the most frequently-used for the recovery of uranium because of its low cost, high efficiency, ease of handling, and the availability of different sorbents [8].…”

Section: Introductionmentioning

confidence: 99%

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Sorption of U(VI) on magnetic illite: effects of pH, ions, humic substances and temperature

Yin

et al. 2015

J Radioanal Nucl Chem

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The sorption of U(VI) on magnetic illite as a function of pH, ionic strength, solid-to-liquid ratio, shaking time, humic acid (HA) and temperature was investigated through batch experiments. The results showed that the sorption process had a strong dependent on the changes of pH, temperature and HA in solution. And at below pH 6.5, with decreasing of the valences of anions such as Cl -, SO 2À 4 and PO 3À 4 ; the sorption amount increased obviously, but that was almost not influenced by cations. This experiment could provide some data base for the studies of actinide elements migration in geological media.

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Section: Effect Of Solid-to-liquid Ratiosupporting

confidence: 85%

Section: Effects Of Ph and Ionic Strengthmentioning

confidence: 99%

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Sorption of U(VI) on magnetic illite: effects of pH, ions, humic substances and temperature

Yin

et al. 2015

J Radioanal Nucl Chem

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“…Iron oxide nanoparticles are considered as a promising source for industrial wastewater treatment. Some of the salient features include the strong adsorption capacity, low cost, easy to separate (Girginova et al, 2010;Fan et al, 2012). Similarly magnetic nanoparticles a posses unique physiochemical properties for instance surface charge, size and paramagnetic properties which makes them one of the ideal candidate in waste water treatment (Qu et al, 2013).…”

Section: Nanomaterials Coated Water Filtersmentioning

confidence: 99%

Nanoagroparticles emerging trends and future prospect in modern agriculture system

Baker

Volova

Prudnikova

et al. 2017

Environmental Toxicology and Pharmacology

171

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Increment of technical knowledge has remarkably uplifted logical thinking among scientific communities to shape the theoretical concepts into near product-oriented research. The concept of nanotechnology has overwhelmed almost all forms of lives and has traded its applications in myriad fields. Despite rapid expansion of nanotechnology, sustainable competitions still do exist in the field of agriculture. In current scenario, agriculture is a manifestation demand to provide adequate nutrition for relentless growing global population. It is estimated that nearly one-third of the global crop production is destroyed annually. The loss owes to various stresses such as pest infestation, microbial pathogens, weeds, natural calamities, lack of soil fertility and much more. In order to overcome these limitations, various technological strategies are implemented but a majority of these have their own repercussions. Hence there is a scrawling progress on the evaluation of nanoparticles into agriculture sector which can reform the modern agricultural system. Applications of these nanomaterials can add tremendous value in the current scenario of a global food scarcity. Nanotechnology can address the adverse effects posed by the abundant use of chemical agrochemicals which are reported to cause biomagnification in an ecosystem. Based on these facts and consideration, present review envisages on nanoparticles as nanoherbicides, nanopesticides, onsite detection agro-pathogens and nanoparticles in post harvest management. The review also elucidates on the importance of nanoparticles in soil fertility, irrigation management and its influence on improving crop yield. With scanty reports available on nanotechnology in agriculture system, present review attributes toward developing nanoagroparticles as the future prospect which can give new facelift for existing agriculture system.

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“…Over the years, magnetic adsorbents have emerged as a new generation of materials for environmental decontamination, since magnetic separation simply involves applying an external magnetic field to extract the adsorbents [6,7,8,9]. Compared with traditional methods, such as filtration, centrifugation or gravitational separation, magnetic separation requires less energy and can achieve better separation especially for adsorbents with small particle sizes.…”

Section: Introductionmentioning

confidence: 99%

ADSORPTION OF URANIUM FROM AQUEOUS SOLUTION BY Cu0.5Ni0.5Fe2O4 – REDUCED GRAPHENE OXIDE NANOCOMPOSITES

Dat¹

2018

JST

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Cu 0.5 Ni 0.5 Fe 2 O 4 -reduced graphene oxide composites (CNF-rGO) as an efficient adsorbent for the adsorption of uranium (VI) have been synthesized by a two-steps methods. The structures and the physicochemical properties of adsorbents are characterized by Scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy (RAMAN) and Vibrating sample magnetometer (VSM) measurement. It was found that rGO were exfoliated and decorated homogeneously with CNF nanoparticles having diameters of 20 nm. The saturated magnetization (Ms) value was estimated to be 60 emu/g, remanences (Mr) and coercive forces (Hc) near to zero, indicating that obtained material is superparamagnetic. The pH effect, contact time and adsorption isotherms were examined in batch experiments. The adsorption isotherm agreed well with the Langmuir model, having a maximum adsorption capacity of 256 mg/g, at pH = 6, T = 298 K.

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Rapid removal of uranium from aqueous solutions using magnetic Fe3O4@SiO2 composite particles

Cited by 243 publications

References 42 publications

Sorption of U(VI) on magnetic illite: effects of pH, ions, humic substances and temperature

Sorption of U(VI) on magnetic illite: effects of pH, ions, humic substances and temperature

Nanoagroparticles emerging trends and future prospect in modern agriculture system

ADSORPTION OF URANIUM FROM AQUEOUS SOLUTION BY Cu0.5Ni0.5Fe2O4 – REDUCED GRAPHENE OXIDE NANOCOMPOSITES

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