Synthesis of magnetic activated carbon/α-Fe2O3 nanocomposite and its application in the removal of acid yellow 17 dye from water

Ranjithkumar, V.; Subramaniam, Sangeetha; Vairam, S.

doi:10.1016/j.jhazmat.2014.03.034

Cited by 116 publications

(56 citation statements)

References 51 publications

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“…The values of remanence (M r ), coercivity (H c ) and the ratio of remanence and saturation magnetization (M r /M s ) were 18.3694, 0.856, and 0.226, respectively. On the basis of the results, it is possible to conclude that Fe@BC possesses superparamagnetic characteristic because its ratio of M r /M s was found to be less than 25% [42]. This property may enhance the as-prepared sample reusability because it could be easy to separate it from the treatment solution by magnetization process.…”

Section: Materials Characterizationmentioning

confidence: 84%

Efficient Removal of Diclofenac from Aqueous Solution by Potassium Ferrate-Activated Porous Graphitic Biochar: Ambient Condition Influences and Adsorption Mechanism

Tâm

Liu

Bashir

et al. 2019

IJERPH

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Porous graphitic biochar was synthesized by one-step treatment biomass using potassium ferrate (K 2 FeO 4 ) as activator for both carbonization and graphitization processes. The modified biochar (Fe@BC) was applied for the removal of diclofenac sodium (DCF) in an aqueous solution. The as-prepared material possesses a well-developed micro/mesoporous and graphitic structure, which can strengthen its adsorption capacity towards DCF. The experimental results indicated that the maximum adsorption capacity (q max ) of Fe@BC for DCF obtained from Langmuir isotherm simulation was 123.45 mg·L −1 and it was a remarkable value of DCF adsorption in comparison with that of other biomass-based adsorbents previously reported. Thermodynamic quality and effect of ionic strength studies demonstrated that the adsorption was a endothermic process, and higher environmental temperatures may be more favorable for the uptake of DCF onto Fe@BC surface; however, the presence of NaCl in the solution slightly obstructed DCF adsorption. Adsorption capacity was found to be decreased with the increase of solution pH. Additionally, the possible mechanism of the DCF adsorption process on Fe@BC may involve chemical adsorption with the presence of H-bonding and π-π interaction. With high adsorption capacity and reusability, Fe@BC was found to be a promising absorbent for DCF removal from water as well as for water purification applications.

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Section: Materials Characterizationmentioning

confidence: 84%

Efficient Removal of Diclofenac from Aqueous Solution by Potassium Ferrate-Activated Porous Graphitic Biochar: Ambient Condition Influences and Adsorption Mechanism

Tâm

Liu

Bashir

et al. 2019

IJERPH

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“…This result indicated that α-Fe 2 O 3 was embedded within the paper mill sludge-based nanocomposite. Furthermore, the low remanence value (Mr/Ms = 0.18) indicated that the PMS-Fe-380 nanoparticles were in a super-paramagnetic state at room temperature (Ranjithkumar et al, 2014). This magnetic property was used to effectively separate the as-synthesized catalyst from water.…”

Section: Catalyst Characterizationmentioning

confidence: 99%

Fenton-like degradation of Methylene Blue using paper mill sludge-derived magnetically separable heterogeneous catalyst: Characterization and mechanism

Zhou

Chen

Fang

et al. 2015

Journal of Environmental Sciences

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“…Generally, these azo dyes are non-biodegradable in aerobic condition and convert to more toxic intermediate [8]. Various adsorbents and biosorbents have been used for removal of these dyes [9][10][11]. Ranjithkumar et al [9] reported the use of activated carbon/Fe 2 O 3 nanocomposite as adsorbent for removal of acid yellow 17.…”

Section: Introductionmentioning

confidence: 99%

“…Various adsorbents and biosorbents have been used for removal of these dyes [9][10][11]. Ranjithkumar et al [9] reported the use of activated carbon/Fe 2 O 3 nanocomposite as adsorbent for removal of acid yellow 17. Similarly, Ashraf et al [10] used a plant named T. Angustata L. and Gao et al [11] used nonliving aerobic granular sludge as biosorbent for removal of acid yellow 17 dye.…”

Section: Introductionmentioning

confidence: 99%

Kinetic and thermodynamic study of oxidative degradation of acid yellow 17 dye by Fenton-like process: Effect of HCO3−, CO32−, Cl− and SO42− on dye degradation

Khan¹,

Tariq²,

Jan³

et al. 2019

Bull. Chem. Soc. Eth.

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We report here the degradation of AY-17 dye using Fenton-like process (H2O2/Fe 3+ ). The maximum degradation (83%) of AY17 dye is achieved at pH 3 in 60 min, with optimum concentrations of AY 17 (0.06 mM), H2O2 (0.9 mM), and Fe 2+ (0.06 mM). The scavenging effects of HCO3 − , CO3 2− , Cl − and SO4 2− on dye degradation are also examined. The activation energy (Ea), activation enthalpy (H * ), and activation entropy (S * ) are calculated for the dye degradation using pseudo-first-order kinetics at various temperature.

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Synthesis of magnetic activated carbon/α-Fe2O3 nanocomposite and its application in the removal of acid yellow 17 dye from water

Cited by 116 publications

References 51 publications

Efficient Removal of Diclofenac from Aqueous Solution by Potassium Ferrate-Activated Porous Graphitic Biochar: Ambient Condition Influences and Adsorption Mechanism

Efficient Removal of Diclofenac from Aqueous Solution by Potassium Ferrate-Activated Porous Graphitic Biochar: Ambient Condition Influences and Adsorption Mechanism

Fenton-like degradation of Methylene Blue using paper mill sludge-derived magnetically separable heterogeneous catalyst: Characterization and mechanism

Kinetic and thermodynamic study of oxidative degradation of acid yellow 17 dye by Fenton-like process: Effect of HCO3−, CO32−, Cl− and SO42− on dye degradation

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