Removal of chromium(VI) from aqueous solution using iron orthophosphate that is synthesized by different methods

Baykan, Demet; Aytekin, Bilsen; Öztaş, Nurşen Altuntaş

doi:10.1080/19443994.2014.958102

Cited by 4 publications

(4 citation statements)

References 39 publications

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“…Baykan et al [94] prepared iron orthophosphate by different methods. The equilibrium data for the adsorption of chromium on the prepared materials were analyzed in Langmuir and Freundlich isotherm models.…”

Section: Heavy Metalsmentioning

confidence: 99%

Structure, morphology, size and application of iron phosphate

Zhang

Liu

et al. 2020

Reviews on Advanced Materials Science

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Iron phosphates have rich chemical structures with various morphologies and sizes. Since they are environment friendly with good biocompatibility, they have good performances in the fields of catalysis and battery electrode material rising in recent years, as well as in the traditional fields like agriculture and steel. They also have important applications in adsorption, separation and concentration due to their unique structural characteristics. In this paper, iron phosphates are classified based on their common characteristics such as structure, morphology and size, and their application in the past two decades is reviewed, with emphasis on their application in adsorption, separation and concentration of different species. Further, their application in adsorption, separation and concentration of heavy metals is prospected.

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Section: Heavy Metalsmentioning

confidence: 99%

Structure, morphology, size and application of iron phosphate

Zhang

Liu

et al. 2020

Reviews on Advanced Materials Science

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“…38 Iron orthophosphate was synthesized by different methods and used for the removal of Cr (VI). 39 Monoclinic phase FePO 4 had a higher capacity of Cr (III) adsorption than amorphous FePO 4. 40 Calcium phosphate with hydroxyapatite structure showed Cr (VI) adsorption capacity 0.012 mg/g.…”

mentioning

confidence: 90%

“…FePO 4 showed 100% Cr (III) adsorption and less than 2% Cr (VI) adsorption at pH 5.9 38 . Iron orthophosphate was synthesized by different methods and used for the removal of Cr (VI) 39 . Monoclinic phase FePO 4 had a higher capacity of Cr (III) adsorption than amorphous FePO 4.…”

Section: Introductionmentioning

confidence: 99%

Highly efficient removal of hexavalent chromium using hexagonal disc shaped barium hydrogen phosphate

Gupta

Ben

2021

Env Prog and Sustain Energy

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Novel hexagonal disc‐shaped barium hydrogen phosphate was synthesized and analyzed by X‐ray diffraction, X‐ray photoelectron spectroscope, scanning electron microscope, transmission electron microscopy, thermogravimetric analysis, Brunauer–Emmett–Teller, and FTIR. The effects of adsorbent dose, adsorption time, initial concentration, initial pH, temperature, and sodium chloride on hexavalent chromium, Cr (VI), adsorption by BaHPO4 were studied. Effective Cr (VI) adsorption capacity was observed in the pH range of 4–5. The temperature‐dependent adsorption data showed sorption is endothermic and spontaneous in nature. The adsorption occurs via electrostatic interaction and is described by second order kinetic, and the adsorption isotherm was best fitted with the Langmuir model. The equilibrium adsorption capacity and maximum adsorption capacity were found to be 128.7 mg/g and 146.8 mg/g, respectively at room temperature and pH 6. Adsorbent is stable, recyclable, environmentally friendly, and can be produced on a large scale at a low cost. This can be utilized for the treatment of Cr (VI) contaminated water.

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“…20 Therefore, different methods have been developed for the treatment of wastewaters containing Cr(VI). Many methods of remediation such as chemical precipitation, 21 ion exchange, 22 reverse osmosis, 23 adsorption, 24 and biosorption 25 are used to remove chromium from wastewater. From these methods, adsorption is seen as a powerful and versatile method to remove heavy metals when combined with appropriate desorption step solving the problem of sludge annihilation.…”

Section: Introductionmentioning

confidence: 99%

Removal of Cr(VI) from wastewater through glycine assisted synthesis of TiO2

Kurttekin¹,

Özer²,

Öztaş³

2019

Turk J Chem

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In this study, titanium dioxide was synthesized via solution combustion method. Titanium(IV) oxysulfate was used as a titanium source. The fuel type, reaction time, and reaction temperature were tested for optimization.The glycine was set as a suitable fuel. Structural properties of the final product were characterized by p-XRD. Scanning electron microscopy (SEM) and BET techniques were used to examine the morphology. The synthesized products were compared to the commercial TiO 2 and it was found that the titanium dioxide with the high surface area (63.628 m 2 /g) has been successfully synthesized by solution combustion method with time and energy saving. In the second part of the study, the adsorption efficiencies of synthesized titanium dioxide were tested, removal of Cr(VI) from wastewater was carried out. It was found that titanium dioxide obtained via solution combustion method has a better capacity for Cr(VI) removal from wastewater than commercial titanium dioxide. In consequence, the chosen synthesis method modified the surface properties and improved the chromium adsorption capacity.

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Removal of chromium(VI) from aqueous solution using iron orthophosphate that is synthesized by different methods

Cited by 4 publications

References 39 publications

Structure, morphology, size and application of iron phosphate

Structure, morphology, size and application of iron phosphate

Highly efficient removal of hexavalent chromium using hexagonal disc shaped barium hydrogen phosphate

Removal of Cr(VI) from wastewater through glycine assisted synthesis of TiO2

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