Enhancing cadmium removal by low-cost nanocomposite adsorbents from aqueous solutions; a continuous system

Shahryari, Taher; Mostafavi, Ali; Afzali, Daryoush; Rahmati, Mahmoud

doi:10.1016/j.compositesb.2019.106963

Cited by 22 publications

(4 citation statements)

References 39 publications

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“…The sewage from battery manufacturing, metallurgical, and mining processes is the major origin of heavy metal contaminants. In order to safeguard the quality of drinking water and protect human health, it is crucial to eradicate heavy metals from polluted water …”

Section: Introductionmentioning

confidence: 99%

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Dodonaea angustifolia Extract-Assisted Green Synthesis of the Cu₂O/Al₂O₃ Nanocomposite for Adsorption of Cd(II) from Water

et al. 2023

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The enhanced worldwide concern for the protection and safety of the environment has made the scientific community focus their devotion on novel and highly effective approaches to heavy metals such as cadmium (Cd) pollutant removal. In this research, Dodonaea angustifolia plant extract-mediated Al 2 O 3 and Cu 2 O nanoparticle (NP) syntheses were accomplished using the coprecipitation method, and the Cu 2 O/Al 2 O 3 nanocomposite was prepared by simple mixing of Cu 2 O and Al 2 O 3 NPs for the removal of Cd(II) ions from aqueous solution. Therefore, an efficient green, economical, facile, and eco-friendly synthesis method was employed, which improved the aggregation of individual metal oxide NPs. The chemical and physical properties of the nanocomposite were examined by different characterization techniques, including scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and Brunauer−Emmett−Teller (BET) surface area analysis. Furthermore, the performances of the nanoadsorbents for the adsorptive eradication of Cd 2+ ions from water were investigated. The influence of pH, contact time, initial Cd quantity, and nanocomposite amount on adsorption effectiveness was carefully studied. The adsorption rates of the Cu 2 O/Al 2 O 3 nanocomposite were rapid, and adsorption equilibrium was attained within 60 min for 97.36% removal of Cd(II) from water. The adsorption isotherm data were best fitted by the pseudo-second-order kinetic and Langmuir isotherm models with the highest adsorption ability of 4.48 mg/g. Therefore, the synthesized Cu 2 O/Al 2 O 3 nanocomposite could be a potential candidate for a highly efficient adsorbent for heavy metal ion removal from aqueous solutions.

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Section: Introductionmentioning

confidence: 99%

“…In order to safeguard the quality of drinking water and protect human health, it is crucial to eradicate heavy metals from polluted water. 2 …”

Section: Introductionmentioning

confidence: 99%

Dodonaea angustifolia Extract-Assisted Green Synthesis of the Cu₂O/Al₂O₃ Nanocomposite for Adsorption of Cd(II) from Water

et al. 2023

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“…Studies have shown that small amounts of chromium and cadmium can have a significant toxic effect on humans (El Gaayda et al, 2023). In addition, chromium and cadmium can cause more serious health problems and even death after accumulation because the human body finds them difficult to discharge (Makarenko et al, 2019;Shahryari et al, 2019). Therefore, how to remove these heavy metal ions becomes extremely urgent.…”

Section: Introductionmentioning

confidence: 99%

High-efficiency adsorption of Cd2+ and Cr3+ by sodium vanadate nanowire arrays

Peng,

Fan,

Fang

2023

Front. Mater.

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With the development of economy, the problem of heavy metal pollution in water environment is becoming more and more serious, so it is urgent to find a kind of efficient water purification material. The current work aimed to investigate the potential power of sodium vanadate nanowire arrays (Na5V12O32) to remove cadmium (Cd2+) and chromium (Cr3+) from simulated aqueous solutions. The adsorption effects of Na5V12O32 on Cd2+ and Cr3+ under different adsorption conditions were analyzed. The products before and after adsorption were compared by XRD, SEM, TEM, FTIR and XPS. The results showed that the irregular grass-like structure of Na5V12O32 nanowire arrays provided more active sites for the ion exchange reaction, and the maximum adsorption capacity of Cd2+ and Cr3+ was 541.2 and 251.8 mg·g-1, respectively. The pseudo-second-order kinetic model was more suitable to describe the adsorption behavior by kinetic study. The research demonstrated that Na5V12O32 nanowire arrays exhibited excellent adsorption performance, which provided an effective parameter basis for the future adsorption of heavy metal ions.

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“…Different natural minerals and the composites are studied such as montmorillonite (Barbier et al, 2000), zeollitic tuff (Budianta et al, 2020), bentonite (Mohajeri et al, 2018), expanded perlite (Torab-Mostaedi et al, 2010), natural zeolite (Panayotova, M., Velikov, B., 2002), natural diatomite (ElSayed, 2018), natural clay (Bedelean et al, 2009), activated alumina (Naiya et al, 2009), activated phosphate rock (Elouaer et al, 2008 ), ball clay (Rao and Kashifuddin, 2016), hydroxyapatite porous materials (Ramdani et al, 2020), manganoxide minerals (Sónmezay et al, 2012), natural phosphate (Yaacoubia et al, 2014), natural calcite (Yavuz et al, 2007), Sepiolite (Padilla et al, 2011), polyvinyl www.bosaljournals/chemint/ editorci@bosaljournals.com alcohol-modified kaolinite clay (Unuabonah et al, 2008), hydroxyapatite/chitosan composites (Park et al, 2015), polyphosphate-modified kaolinite clay (Amer et al, 2010), alkaline modification of kaolin (David et al, 2020), Nano kaolinite (Alasadi et al, 2019) unmodified and modified kaolinite clay (Al-Essa and Khalili, 2018;Abukhadra et al, 2019), magnetic core-zeolitic shell nanocomposites (Padervand and Gholami, 2013), natural mixture of kaolinite-albite-montmorillonite-illite clay (Eba et al, 2011), kaolinite and montmorillonite surfaces (Gupta and Bhattacharyya, 2008), Al( 13)-pillared acid-activated montmorillonite (Yan et al, 2008). hydroxyapatite/alginate/gelatin nanocomposites (Sangeetha et al, 2018), Iron nanocomposite and modified by Fe-S nanoparticles (Shahryari et al, 2019), thiol-lignocellulose sodium bentonite (TLSB) nanocomposites (Zhang et al, 2020), lignocellulose-g-acrylic acid/montmorillonite nanocomposite …”

Section: Introductionmentioning

confidence: 99%

Adsorptive removal of Pb(II) and Cd(II) ions from aqueous solution onto modified Hiswa iron-kaolin clay: Equilibrium and thermodynamic aspects

International¹

2021

Preprint

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In view of promising adsorption efficiency of clay based materials, a modified iron-kaolin clay was used as an adsorbent of Pb(II) and Cd(II) ions from aqueous solutions. The effects of various experimental parameters, such as initial metal ions concentration, contact time, temperature and pH were investigated. The Langmuir and Freundlich adsorption isotherm models were applied to the experimental equilibrium data at different temperatures. The maximum adsorption capacities of Pb(II) and Cd(II) ions were 76.92 and 75.19 (mg/g), respectively. Thermodynamic parameters such as the change of Gibbs free energy, enthalpy and entropy of adsorption were also calculated and it was found that the lead and cadmium ions uptake by modified kaolin clay is endothermic and spontaneous in nature.

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Enhancing cadmium removal by low-cost nanocomposite adsorbents from aqueous solutions; a continuous system

Cited by 22 publications

References 39 publications

Dodonaea angustifolia Extract-Assisted Green Synthesis of the Cu₂O/Al₂O₃ Nanocomposite for Adsorption of Cd(II) from Water

Dodonaea angustifolia Extract-Assisted Green Synthesis of the Cu₂O/Al₂O₃ Nanocomposite for Adsorption of Cd(II) from Water

High-efficiency adsorption of Cd2+ and Cr3+ by sodium vanadate nanowire arrays

Adsorptive removal of Pb(II) and Cd(II) ions from aqueous solution onto modified Hiswa iron-kaolin clay: Equilibrium and thermodynamic aspects

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Enhancing cadmium removal by low-cost nanocomposite adsorbents from aqueous solutions; a continuous system

Cited by 22 publications

References 39 publications

Dodonaea angustifolia Extract-Assisted Green Synthesis of the Cu2O/Al2O3 Nanocomposite for Adsorption of Cd(II) from Water

Dodonaea angustifolia Extract-Assisted Green Synthesis of the Cu2O/Al2O3 Nanocomposite for Adsorption of Cd(II) from Water

High-efficiency adsorption of Cd2+ and Cr3+ by sodium vanadate nanowire arrays

Adsorptive removal of Pb(II) and Cd(II) ions from aqueous solution onto modified Hiswa iron-kaolin clay: Equilibrium and thermodynamic aspects

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Product

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Dodonaea angustifolia Extract-Assisted Green Synthesis of the Cu₂O/Al₂O₃ Nanocomposite for Adsorption of Cd(II) from Water

Dodonaea angustifolia Extract-Assisted Green Synthesis of the Cu₂O/Al₂O₃ Nanocomposite for Adsorption of Cd(II) from Water