A magnetic nanocomposite produced from camel bones for an efficient adsorption of toxic metals from water

Alqadami, Ayoub Abdullah; Khan, Moonis Ali; Otero, Marta; Siddiqui, Masoom Raza; Jeon, Byong‐Hun; Batoo, Khalid Mujasam

doi:10.1016/j.jclepro.2018.01.023

Cited by 139 publications

(31 citation statements)

References 47 publications

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“…The specific magnetic saturation magnitudes for Fe 3 O 4 and SDS@Fe 3 O 4 NPs were 60.0 and 50.0 emug −1 , respectively, as displayed in Figure 4 . Comparatively lower magnetic saturation of SDS@Fe 3 O 4 NPs might be due to their coating with SDS [ 42 ]. In order to avoid aggregation of Fe 3 O 4 NPs, which may severely reduce their catalytic efficiency, coating with SDS was executed in this work.…”

Section: Resultsmentioning

confidence: 99%

Kinetic Studies on the Catalytic Degradation of Rhodamine B by Hydrogen Peroxide: Effect of Surfactant Coated and Non-Coated Iron (III) Oxide Nanoparticles

et al. 2020

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Iron (III) oxide (Fe3O4) and sodium dodecyl sulfate (SDS) coated iron (III) oxide (SDS@Fe3O4) nanoparticles (NPs) were synthesized by the co-precipitation method for application in the catalytic degradation of Rhodamine B (RB) dye. The synthesized NPs were characterized using X-ray diffractometer (XRD), vibrating sample magnetometer (VSM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Fourier transform infra-red (FT-IR) spectroscopy techniques and tested in the removal of RB. A kinetic study on RB degradation by hydrogen peroxide (H2O2) was carried out and the influence of Fe3O4 and SDS@Fe3O4 magnetic NPs on the degradation rate was assessed. The activity of magnetic NPs, viz. Fe3O4 and SDS@Fe3O4, in the degradation of RB was spectrophotometrically studied and found effective in the removal of RB dye from water. The rate of RB degradation was found linearly dependent upon H2O2 concentration and within 5.0 × 10−2 to 4.0 × 10−1 M H2O2, the observed pseudo-first-order kinetic rates (kobs, s−1) for the degradation of RB (10 mg L−1) at pH 3 and temperature 25 ± 2 °C were between 0.4 and 1.7 × 104 s−1, while in presence of 0.1% w/v Fe3O4 or SDS@Fe3O4 NPs, kobs were between 1.3 and 2.8 × 104 s−1 and between 2.6 and 4.8 × 104 s−1, respectively. Furthermore, in presence of Fe3O4 or SDS@Fe3O4, kobs increased with NPs dosage and showed a peaked pH behavior with a maximum at pH 3. The magnitude of thermodynamic parameters Ea and ΔH for RB degradation in presence of SDS@Fe3O4 were 15.63 kJ mol−1 and 13.01 kJ mol−1, respectively, lowest among the used catalysts, confirming its effectiveness during degradation. Furthermore, SDS in the presence of Fe3O4 NPs and H2O2 remarkably enhanced the rate of RB degradation.

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Section: Resultsmentioning

confidence: 99%

Kinetic Studies on the Catalytic Degradation of Rhodamine B by Hydrogen Peroxide: Effect of Surfactant Coated and Non-Coated Iron (III) Oxide Nanoparticles

et al. 2020

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“…Industrial-scale applications are also known with ion-exchange resin, activated carbon and silica gel (Karnib et al 2014), but there are promising materials which have only been tested on laboratory scale, i.e., graphene microbots (Vilela et al 2016), or different nanomaterials (Wang et al 2012) and nanocomposites (Sharma et al 2014). There are also many interesting new experiments on the subject, where for example pyrolyzed camel bones (Alqadami et al 2018) or watermelon rind extract-capped ZnS nanoparticles (Devasangeeth et al 2018) were used.…”

Section: Introductionmentioning

confidence: 99%

Application of ion-exchange resin beads to produce magnetic adsorbents

et al. 2020

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Heavy metal ions are among the most dangerous contaminants, which can cause serious health problems. In this work, ion-exchange resin beads were used as supports for magnetite (Fe3O4) synthesis to produce heavy metal adsorbents which can be easily separated by magnetic field. The first step of the magnetite preparation was the replacement of hydrogen ions with Fe2+ and Fe3+ ions on the sulfonic acid groups of the resin. In the second step, magnetite particle formation was induced by coprecipitating the iron ions with sodium hydroxide. The regeneration of the ion-exchange resin was also carried out by using sodium hydroxide. SEM images verified that relatively large magnetite crystal particles (diameter = 100–150 nm) were created. The ion-exchange effect of the prepared magnetic adsorbent was also confirmed by applying Cu2+, Ni2+, Pb2+ and Cd2+ ions in adsorption experiments.

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“…For example, high concentrations of copper in the body stimulate the digestive system, causing pain, vomiting, and death . For environmental sustainability, strict environmental regulations regarding heavy metals have been made to limit concentration of heavy metals in waste effluents before their discharge into natural water reservoirs . However, in some developing countries, the combination of rapid industrialization and the lack of control of heavy metal release created a very critical environmental problem.…”

Section: Introductionmentioning

confidence: 99%

Systematic Investigation on the Adsorption Performance and Mechanism of MnO₂/TA Nanoflowers for Cu(II) Removal from Aqueous Solution

et al. 2019

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In this work, a nanoflower-type manganese dioxide composite with tannic acid (MnO 2 /TA) was prepared using a facile hydrothermal method. The maximum adsorption capacity of nanoflower MnO 2 /TA for Cu(II) removal from aqueous solution was 194.3 mg⋅g À 1 , and this illustrated the excellent adsorptive activity of nanoflower MnO 2 /TA. Adsorption kinetics and isotherm investigations showed that pseudo second order kinetics and the Langmuir isotherm model fit the experimental data well. The surface complex formation model (SCFM) was used to study the adsorptive process and mechanism of Cu(II) adsorption on the surface of MnO 2 /TA. Further investigation indicated that the adsorption energies for various forms of Cu (II) were negative which indicated that Cu(II) adsorption on MnO 2 /TA was a spontaneous process. Electrostatic interactions and chemical complexation were involved in Cu(II) removal by MnO 2 /TA from aqueous solution. The decline of adsorption capacity was about 10% for MnO 2 /TA after being reused five times, and this showed that the adsorbent might be reused in Cu(II) removal. The MnO 2 /TA nanocomposite has been proven to be a low-cost and efficient adsorbent that could be a potential material for use in environmental treatment. Understanding the adsorption mechanism might provide a technical basis for the processual design of heavy metal adsorbents.[a] Prof.

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A magnetic nanocomposite produced from camel bones for an efficient adsorption of toxic metals from water

Cited by 139 publications

References 47 publications

Kinetic Studies on the Catalytic Degradation of Rhodamine B by Hydrogen Peroxide: Effect of Surfactant Coated and Non-Coated Iron (III) Oxide Nanoparticles

Kinetic Studies on the Catalytic Degradation of Rhodamine B by Hydrogen Peroxide: Effect of Surfactant Coated and Non-Coated Iron (III) Oxide Nanoparticles

Application of ion-exchange resin beads to produce magnetic adsorbents

Systematic Investigation on the Adsorption Performance and Mechanism of MnO₂/TA Nanoflowers for Cu(II) Removal from Aqueous Solution

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A magnetic nanocomposite produced from camel bones for an efficient adsorption of toxic metals from water

Cited by 139 publications

References 47 publications

Kinetic Studies on the Catalytic Degradation of Rhodamine B by Hydrogen Peroxide: Effect of Surfactant Coated and Non-Coated Iron (III) Oxide Nanoparticles

Kinetic Studies on the Catalytic Degradation of Rhodamine B by Hydrogen Peroxide: Effect of Surfactant Coated and Non-Coated Iron (III) Oxide Nanoparticles

Application of ion-exchange resin beads to produce magnetic adsorbents

Systematic Investigation on the Adsorption Performance and Mechanism of MnO2/TA Nanoflowers for Cu(II) Removal from Aqueous Solution

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Systematic Investigation on the Adsorption Performance and Mechanism of MnO₂/TA Nanoflowers for Cu(II) Removal from Aqueous Solution