Studies on the removal of As(III) and As(V) through their adsorption onto granular activated carbon/MnFe2O4 composite: isotherm studies and error analysis

Podder, M.S.; Majumder, C. B.

doi:10.1080/09276440.2016.1137715

Cited by 50 publications

(24 citation statements)

References 109 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, it is concluded that the decrease in sorption of arsenite on Fe-UTAC indicates that the adsorption phenomenon is exothermic in nature. Similar temperature effect has been reported by others in literature [41,44,45]. Fig.…”

Section: Equilibrium Adsorption Studies 341 Effect Of Arsenite Concsupporting

confidence: 89%

See 1 more Smart Citation

ADSORPTION OF As(III) FROM AQUEOUS SOLUTION ONTO IRON IMPREGNATED USED TEA ACTIVATED CARBON: EQUILIBRIUM, KINETIC AND THERMODYNAMIC STUDY

Mahmood

Aslam

Akhtar

et al. 2018

J. Chil. Chem. Soc.

View full text Add to dashboard Cite

An efficient and cost effective adsorbent, activated carbon (UTAC) derived from used tea (UT) for the removal of As(III) from aqueous solutions was developed. To increase adsorption, UTAC was then impregnated with (magnetite) iron oxide particles (Fe-UTAC). The prepared adsorbents were characterized by XRD, SEM/EDX, FTIR and surface area analyzer. A comprehensive kinetic study of arsenite adsorption onto Fe-UTAC was conducted at 298-318 K and pH 8. The Richenberg model confirmed film diffusion to be the main rate limiting step. The removal of As(III) from aqueous solution onto Fe-UTAC was carried out as a function of temperature, concentration and pH. The sorption capacity (mol g -1 ) of Fe-UTAC was observed to increase with increase in arsenite concentration while a decrease in the As(III) uptake was observed by increasing the temperature of the system. The sorption capacity of Fe-UTAC was almost three and six times larger than that of UTAC and UT respectively. The effect of pH on the arsenite adsorption was significant in the pH range 7-8 which may be correlated with the stability of Fe-UTAC as no release of iron from Fe-UTAC was observed. The mean free energy calculated from DR mechanism confirmed adsorption to be chemisorption and followed ligand exchange mechanism. The thermodynamic parameters confirmed adsorption to be exothermic, spontaneous and favorable.

show abstract

Section: Equilibrium Adsorption Studies 341 Effect Of Arsenite Concsupporting

confidence: 89%

“…in temperature and thus is independent of temperature. Similar behavior of arsenite sorption has been reported by Podder and Majumder [41].…”

Section: Adsorption Kineticssupporting

confidence: 88%

ADSORPTION OF As(III) FROM AQUEOUS SOLUTION ONTO IRON IMPREGNATED USED TEA ACTIVATED CARBON: EQUILIBRIUM, KINETIC AND THERMODYNAMIC STUDY

Mahmood

Aslam

Akhtar

et al. 2018

J. Chil. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…This model is most useful in describing heterogeneous adsorption systems which satisfy both low and high end boundary of adsorbate concentration [52]. The Toth isotherm model is expressed as follows [52]:…”

Section: Toth Isothermmentioning

confidence: 99%

Modelling and Interpretation of Adsorption Isotherms

Ayawei

Ebelegi

Wankasi

2017

Journal of Chemistry

1,925

885

View full text Add to dashboard Cite

The need to design low-cost adsorbents for the detoxification of industrial effluents has been a growing concern for most environmental researchers. So modelling of experimental data from adsorption processes is a very important means of predicting the mechanisms of various adsorption systems. Therefore, this paper presents an overall review of the applications of adsorption isotherms, the use of linear regression analysis, nonlinear regression analysis, and error functions for optimum adsorption data analysis.

show abstract

“…These adsorption capacities are among the highest ( Table 3). The results show that As(III) and As(V) removal is strongly pH-dependent with an optimum pH value of 7.0 and 4.0, respectively [293]. Multiwalled boron nitride nanotubes (BNNTs) functionalized with MNPs are used for As(V) removal [294].…”

Section: Arsenic Phosphate Molybdate Fluoride Seleniummentioning

confidence: 99%

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

2017

Journal of Hazardous Materials

300

View full text Add to dashboard Cite

Studies on the removal of As(III) and As(V) through their adsorption onto granular activated carbon/MnFe2O4 composite: isotherm studies and error analysis

Cited by 50 publications

References 109 publications

ADSORPTION OF As(III) FROM AQUEOUS SOLUTION ONTO IRON IMPREGNATED USED TEA ACTIVATED CARBON: EQUILIBRIUM, KINETIC AND THERMODYNAMIC STUDY

ADSORPTION OF As(III) FROM AQUEOUS SOLUTION ONTO IRON IMPREGNATED USED TEA ACTIVATED CARBON: EQUILIBRIUM, KINETIC AND THERMODYNAMIC STUDY

Modelling and Interpretation of Adsorption Isotherms

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

Contact Info

Product

Resources

About