Adsorption of hexavalent chromium from aqueous solution using pomegranate peel as low-cost biosorbent

Giri, R.; Kumari, Nisha; Behera, Monalisha; Sharma, Avimanu; Kumar, Suresh; Kumar, Narendra; Singh, Ritu

doi:10.1007/s42398-021-00192-8

Cited by 24 publications

(16 citation statements)

References 66 publications

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“…The decline in % removal efficiency with the temperature rise suggests that probably the biosorptive interactions between the metal ions and the biosorbent surface weakened due to increasing temperature and therefore, the process should be exothermic (Sharma et al, 2021). The negative value of ∆H° (-14.782 KJ/mol) also supported this fact (Fig.…”

Section: Effect Of Temperature and Evaluation Of Thermodynamic Parame...mentioning

confidence: 68%

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Biosorption potential of Lantana camara leaves’ biosorbent to remove Zn (II) ions from synthetic aqueous solution

Negi

Joshi²,

Bhandari³

2023

Preprint

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Inorganic metal pollution is becoming more prevalent as industrialization progresses. Despite being an essential element, Zn (II) can be detrimental if consumed in excess. In this study, the possibility of using Lantana camara leaves to prepare a biosorbent that can eliminate Zn (II) ions from contaminated wastewater solutions was investigated. BET surface area, FTIR and SEM analysis were carried out to characterize the prepared Lantana camara leaves biosorbent (LCLB). It was reported that increasing biosorbent dosage and contact duration improves Zn (II) ion removal while it decreases with rising initial concentrations of Zn (II) ions and temperature. At pH 6, 5 g adsorbent dosage, and 45 minutes contact time, excellent removal capabilities (85.06%) were reported. The pseudo-second-order rate model fit the kinetics of Zn (II) adsorption well (R2 > 0.998), and the predicted adsorption capacity of the model agreed well with the experimental outcomes. The Langmuir isotherm (R2 > 0.996) was the best suited isotherm model for Zn (II) adsorption onto LCLB, implying monolayer adsorption. Thermodynamic experiments revealed that Zn (II) adsorption on the biosorbent's surface was spontaneous and exothermic. Desorption studies implied that the biosorbent can be recycled effectively up to two cycles. An investigation of the maximum adsorption capabilities of different untreated biomaterial-based residues found that LCLB is an effective, inexpensive, and environmentally acceptable biosorbent for use in the removal of contaminants from polluted aqueous media.

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Section: Effect Of Temperature and Evaluation Of Thermodynamic Parame...mentioning

confidence: 68%

“…4 (c) and Table 1). This is relatable because increasing the biosorbent dose increases the number of functional sites for metal ions to chelate with (Redha et al, 2020;Giri et al, 2021). also found the similar results while using Tectona grandis leaves as a biosorbent for removing Zn (II) ions from wastewater.…”

Section: Effect Of Biosorbent Dosementioning

confidence: 91%

Biosorption potential of Lantana camara leaves’ biosorbent to remove Zn (II) ions from synthetic aqueous solution

Negi

Joshi²,

Bhandari³

2023

Preprint

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“…This finding coincides with the XRD and FTIR analyses result, thus confirming that the main components of the PMPP sample are non-cellulosic materials. Studies by Salam, et al [14] and Giri, et al [13] reported a coarse surface structure with hollow cavities and pore structure on the native/raw pomegranate peel. However, the coarse and rough surface structures metamorphized into a comparatively smoothened surface due to a possible occurrence of a redox reaction between the adsorbent active sites and adsorbed chromium ions.…”

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 99%

“…Asides from their ready availability, pomegranate peels have several inherent functional groups that play key roles during pollutant adsorption and also permit the occurrence of multiple mechanisms. For instance, the hydroxybenzoic (gallic and ellagic) acids, derivatives of flavones, and hydroxycinnamic acids are responsible for their superior heavy metal chelation properties [13]. The phenolic compounds and the anthocyanin derivatives contribute to the excellent surface adsorption of free metal ions [14].…”

Section: Introductionmentioning

confidence: 99%

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Characterization and adsorption of raw pomegranate peel powder for lead (II) ions removal

Hashem

Aniagor

Fikry

et al. 2023

J Mater Cycles Waste Manag

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The adsorption potential of raw pomegranate peel powder (PMPP) for lead (Pb) ions was investigated via batch mode at varying initial adsorbate concentration, contact time, and adsorbent concentration. The PMPP was extensively characterized using Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Scanning electron microscopy (SEM), Energy-dispersion X-ray (EDX), thermogravimetry (TG), and differential scanning calorimetry (DSC) analyses. The instrumental characterization results confirmed the presence of important functional groups and surface texture/morphology that played key roles during the lead ion adsorption. Description of the experimental equilibrium data by nonlinear Langmuir, Freundlich, Dubinin–Radushkevich, and Temkin isotherm models was elaborately presented in the study. The experimental kinetic data were fitted to the Pseudo-first-order, Pseudo-second-order, Intra-particle diffusion, and Elovich models. The Temkin model satisfactorily predicted the isotherm data. Meanwhile, the intra-particle diffusion model was best at predicting the kinetic data at adsorbate concentration of 150 mg/L, while the Elovich model emerged as the best fit at 300 mg/L concentration. This study shows that lead ions could be efficiently removed using raw pomegranate peel powder.

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Estimation of sorption–desorption characteristics of biosorbent of Lantana camara leaves for removal of Pb (II) ions from wastewater

Negi

Joshi²,

Bhandari³

2022

Environ Monit Assess

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Adsorption of hexavalent chromium from aqueous solution using pomegranate peel as low-cost biosorbent

Cited by 24 publications

References 66 publications

Biosorption potential of Lantana camara leaves’ biosorbent to remove Zn (II) ions from synthetic aqueous solution

Biosorption potential of Lantana camara leaves’ biosorbent to remove Zn (II) ions from synthetic aqueous solution

Characterization and adsorption of raw pomegranate peel powder for lead (II) ions removal

Estimation of sorption–desorption characteristics of biosorbent of Lantana camara leaves for removal of Pb (II) ions from wastewater

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