<i>Ricinus Communis</i> Pericarp  Activated  Carbon Used as an Adsorbent for the Removal of Ni(II) From  Aqueous Solution

Madhavakrishnan, S.; Manickavasagam, K.; Rasappan, K.; Shabudeen, P. S. Syed; Venkatesh, Ranjithkumar; Pattabhi, S.

doi:10.1155/2008/272370

Cited by 23 publications

(17 citation statements)

References 5 publications

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“…www.deswater.com doi: 10.1080/19443994.2013.785367 52 (2014) 305-313 January 0.5 and 1 mg/L, respectively [8,9]. Copper (II) causes Wilson disease and metabolic and mental disorders [3,10].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

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Removal of copper (II) and nickel (II) from aqueous media using silica aerogel modified with amino propyl triethoxysilane as an adsorbent: equilibrium, kinetic, and isotherms study

Faghihian

Nourmoradi

Maryam

2014

Desalination and Water Treatment

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A B S T R A C TThis study focused on the adsorption of copper (II) and nickel (II) from aqueous solutions onto silica aerogel modified with amino propyl triethoxysilane as a compound containing amino functional group. The batch experiments were conducted at various conditions including contact time, pH, adsorbent dose, and adsorbate content. The results showed that the equilibrium time occurred within 5 h for Ni(II) and 24 h for Cu(II) and the maximum adsorption capacity for both the ions happened at a pH of 6. The kinetic and isotherm adsorption of the modified silica aerogel fitted well to pseudo-second order model and Langmuir model, respectively. The Langmuir isotherm model results showed that the maximum adsorption capacity (Q m ) of the modified adsorbent was 47.6 mg/g for Cu(II) and 27.7 mg/g for Ni(II). Experimental data analysis by Dubinin-Radushkevich isotherm also illustrated that the metals adsorption onto the sorbent was physical in nature. With regard to the sorption capacity obtained by the modified silica aerogel, it can be considered as an efficient sorbent in the removal of the metal ions.

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Section: Desalination and Water Treatmentmentioning

confidence: 99%

“…The effects of various conditions including contact time (0-48 h), pH (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12), metal concentration (50-500 mg/L), and adsorbent dose (0.05-1.6 g) on the sorption were examined. Next, the suspension was centrifuged (2,500 rpm for 10 min) and the clear supernatant was analyzed for the metal ions by AAS.…”

Section: Adsorption Experimentsmentioning

confidence: 99%

Removal of copper (II) and nickel (II) from aqueous media using silica aerogel modified with amino propyl triethoxysilane as an adsorbent: equilibrium, kinetic, and isotherms study

Faghihian

Nourmoradi

Maryam

2014

Desalination and Water Treatment

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“…Up to that acceptance does, nickel poisoning causes cyanosis, cancers of lungs, nose and bone. Thus, it is necessary to remove them from industrial wastewater [6]. Several methods such as chemical precipitation, coagulation, ion exchange, and adsorption are generally used [7].…”

Section: Introductionmentioning

confidence: 99%

Kinetics and equilibrium studies of the adsorption of nickel (II) ions from aqueous solution onto modified natural and synthetic iron oxide

Adolphe

Merlain²,

Blaise³

et al. 2015

IJBAS

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The present paper reports on the kinetic and equilibrium studies of the adsorption of Nickel(II) ions from aqueous solution onto modified natural iron oxide (NAT) from Mbalam (East Region of Cameroon) and synthetic iron oxide (SYNTH). The parameters investigated using batch techniques include, the contact time, adsorbent mass, pH and initial metal ion concentration. The experimental results obtained showed that, the optimum pH of 6 for bothadsorbents with an equilibrium time of 30 minutes was sufficient. The kinetic data correlated well with the pseudo-first-order and pseudo-second-order kinetic models for both the adsorbents based on the correlation coefficients (R 2 ) obtained. The adsorption processes followed both the Langmuir and the Tempkin adsorption models for the natural iron oxide, whereas the Freundlich and Tempkin adsorption models fitted well the adsorption data for the synthetic iron oxide. The maximum quantity of Nickel(II) ions adsorbed was 250 mg/g for the two adsorbents. These results revealed a high adsorption capacity of natural iron oxide which is comparable to that of synthetic iron oxide.

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“…Therefore the main objective of this study was to evaluate the possibility of using the dried epicarp of Ricinus to develop a new low-cost activated carbon and study its application to remove malachite green (MG) from simulated wastewater. The epicarp of Ricinus was previously investigated to adsorb Crystal violet [20] and Ni (II) [21]. Systematic evaluation of the parameters involved, pH, adsorbent dose, adsorbent particle size, initial dye concentration and time.…”

Section: Introductionmentioning

confidence: 99%

Removal of malachite green from aqueous solution by activated carbon prepared from the epicarp of Ricinus communis by adsorption

Santhi

Manonmani²,

Smitha

2010

Journal of Hazardous Materials

224

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Ricinus Communis Pericarp Activated Carbon Used as an Adsorbent for the Removal of Ni(II) From Aqueous Solution

Cited by 23 publications

References 5 publications

Removal of copper (II) and nickel (II) from aqueous media using silica aerogel modified with amino propyl triethoxysilane as an adsorbent: equilibrium, kinetic, and isotherms study

Removal of copper (II) and nickel (II) from aqueous media using silica aerogel modified with amino propyl triethoxysilane as an adsorbent: equilibrium, kinetic, and isotherms study

Kinetics and equilibrium studies of the adsorption of nickel (II) ions from aqueous solution onto modified natural and synthetic iron oxide

Removal of malachite green from aqueous solution by activated carbon prepared from the epicarp of Ricinus communis by adsorption

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