Sorption mechanism of Cd(II) from water solution onto chicken eggshell

Flores-Cano, J.V.; Leyva‐Ramos, Roberto; Mendoza‐Barron, Jovita; Guerrero-Coronado, Rosa M.; Aragón‐Piña, Antonio; Labrada-Delgado, Gladis Judith

doi:10.1016/j.apsusc.2013.03.153

Cited by 89 publications

(42 citation statements)

References 25 publications

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“…This waste can be transformed into valuable products. Eggshells can also be used as a CaCO 3 source for different applications [4,5]. However, the common trend to manage waste eggshell is land filling which causes problems for the environment.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Nano-Calcium Oxide from Waste Eggshell by Sol-Gel Method

Shiferaw²,

et al. 2019

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The sol-gel technique has many advantages over the other mechanism for synthesizing metal oxide nanoparticles such as being simple, cheap and having low temperature and pressure. Utilization of waste materials as a precursor for synthesis makes the whole process cheaper, green and sustainable. Calcium Oxide nanoparticles have been synthesized from eggshell through the sol-gel method. Raw eggshell was dissolved by HCl to form CaCl 2 solution, adding NaOH to the solution dropwise to agitate Ca (OH) 2 gel and finally drying the gel at 900 • C for 1 h. The synthesized nanoparticle was characterized by scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), X-Ray fluorescence (XRF) and X-ray diffraction (XRD). The FTIR and XRD results have clearly depicted the synthesis of calcium oxide from eggshell, which is mainly composed of calcium carbonate. The FE-SEM images of calcium oxide nanoparticles showed that the particles were almost spherical in morphology. The particle size of the nanoparticles was in the range 50 nm-198 nm. Therefore, waste eggshell can be considered as a promising resource of calcium for application of versatile fields.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Nano-Calcium Oxide from Waste Eggshell by Sol-Gel Method

Shiferaw²,

et al. 2019

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“…The broad band centred at 1433 cm −1 is typical of a C–O bond in the carbonate assigned to stretching vibration, suggesting a coordination bond between calcium and oxygen atoms of the carbonate. Moreover, two sharp bands at 860 and 710 cm −1 due to the out‐of‐plane and in‐plane deformation modes of carbonate, respectively, were identified . The broad band at 1050 cm −1 is related to the C–O stretching of alcoholic groups or carboxylic acids.…”

Section: Resultsmentioning

confidence: 97%

“…FTIR studies demonstrated that carboxyl and hydroxyl groups were responsible for the sorption of these metals. Chicken eggshell was tested for sorption of Cd(II) in the work reported by Flore‐Cano et al It was demonstrated that sorption capacity of the biosorbent was significantly enhanced by increasing the pH from 4 to 6 and the temperature from 15 to 35 °C.…”

Section: Introductionmentioning

confidence: 99%

Compost from poultry hatchery waste as a biosorbent for removal of Cd(II) and Pb(II) from aqueous solutions

et al. 2017

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Compost from poultry hatchery waste (CPHW) was used as an efficient biosorbent for the removal of heavy metals from aqueous solutions. Single and competitive adsorption of Cd(II) and Pb(II) onto CPHW were studied. The optimum pH of the aqueous solution for Cd(II) and Pb(II) adsorption was found to be in the range 3 to 5. The pseudo‐second order model enabled a better description of the adsorption kinetics. Equilibrium data obtained at 25, 35, and 45 °C were better described by the Sips isotherm than by the Freundlich and Langmuir models. The maximum adsorption capacities calculated by applying the Sips isotherm were 32.3 mg/g for Cd(II) and 142.6 mg/g for Pb(II) at 25 °C. In binary metal ion solutions, a decrease in the adsorption capacity for both heavy metals was observed. The single and competitive adsorption tests revealed that the adsorption affinity was higher for Pb(II) than for Cd(II). Thermodynamic parameters such as ΔG0, ΔH0, and ΔS0 indicated that the adsorption was feasible, spontaneous, and endothermic. FTIR spectroscopy characterization showed that carboxyl and hydroxyl groups were involved in the adsorption of the metals. SEM‐EDX analysis confirmed that Cd(II) and Pb(II) may replace Ca(II) from biosorbent surface. Therefore, the results suggest that CPHW can be used as an economical biosorbent for Pb(II) and Cd(II) removal from aqueous solutions.

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“…4a. The adsorption experiment of PCP was performed in 4-10 pH range because over the range of pH the solubility of calcium carbonate (the main component of the eggshell) is low (below 1%) (Flores--Cano et al 2013). The percentage of CaCO 3 dissolved doubles while the solution pH is reduced from 4 to 3 and increases considerably at pH below 3 (Flores-Cano et al 2013).…”

Section: Effect Of Ph and Ionic Strengthmentioning

confidence: 99%

“…Chicken eggshells are a signifi cant solid waste, which is generated on a large scale from household, food industries, bakeries or restaurants. The recent studies show that eggshells can be employed as an effective adsorbent for the removal of metal ions (Flores-Cano et al 2013, Koumanova et al 2002, Oke et al 2008), lignosulfonate (Zulfi kar et al 2012, humic acid ) and dyes including Brilliant Red (Koumanova et al 2002), Methylene Blue (Tsai et al 2006), Malachite Green (Chowdhury and Saha 2012), Crystal Violet (Chowdhury et al 2013) and Congo Red (Zulfi kar and Setiyanto 2013). Daraei et al (2013) investigated the effi ciency of eggshell for the removal of phenol from water.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive removal of pentachlorophenol from aqueous solutions using powdered eggshell

Kuśmierek

Idźkiewicz

Świątkowski

et al. 2017

Archives of Environmental Protection

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Abstract:The usefulness of untreated powdered eggshell as low-cost adsorbent for the removal of pentachlorophenol (PCP) from aqueous solutions was investigated. The most important parameters affecting the adsorption process, including the pH and ionic strength, were examined. The adsorption characteristics of PCP onto eggshell were evaluated in terms of kinetic and equilibrium parameters. The kinetic data were studied in terms of the pseudo--fi rst order, pseudo-second order and intra-particle diffusion kinetic models. The equilibrium data were analyzed using the Langmuir, Freundlich, Sips and Redlich-Peterson isotherm models. The pseudo-second order model best described the adsorption kinetics. Using the Langmuir equation, the monolayer adsorption capacity of eggshell for PCP was found to be 0.127 mg/g. The results showed that PCP can be effectively removed from aqueous solution employing eggshell as a cheap adsorbent.

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Sorption mechanism of Cd(II) from water solution onto chicken eggshell

Cited by 89 publications

References 25 publications

Synthesis of Nano-Calcium Oxide from Waste Eggshell by Sol-Gel Method

Synthesis of Nano-Calcium Oxide from Waste Eggshell by Sol-Gel Method

Compost from poultry hatchery waste as a biosorbent for removal of Cd(II) and Pb(II) from aqueous solutions

Adsorptive removal of pentachlorophenol from aqueous solutions using powdered eggshell

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