An extensive review on chromium (vi) removal using natural and agricultural wastes materials as alternative biosorbents

Bayuo, Jonas

doi:10.1007/s40201-021-00641-w

Cited by 49 publications

(22 citation statements)

References 92 publications

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“…The final product was dried overnight at 70.00 °C, and its weight was calculated to be about 36.25 g yield after drying. TETA was included in the product's label (activated TETA-PP) (El-Nemr et al 2020a, 2020b, 2020c, 2021.…”

Section: Preparation Of Biosorbentsmentioning

confidence: 99%

“…( 5). q e and k 1 depict the sorption capacity at EQB (mg/L) and rate constant (1/min), which is assessed through an experiment from gradient and intercept from the log(q e − q t ) against t graph (El Nemr et al 2010; Ugraskan et al 2021;Sizirici et al 2018;Bayuo 2021). In the PSO, the sorbate-sorbent interactions during the sorption procedure are taken into consideration.…”

Section: Kinetic Modelsmentioning

confidence: 99%

“…α and β depict the initial sorption rate (mg/g min) and the desorption constant (g/mg) (Bayuo 2021). The ELH optimum sorption capacity and the ELH constant were estimated from the gradient and intercept of the graph of ln(q e /C e ) against q e (Ayawei et al 2017).…”

Section: Kinetic Modelsmentioning

confidence: 99%

“…K d is the IPD rate constant (mg/g min) and is determined from the graph of q t against t 0.5 , and C indicates the intercept (Mangwandi et al 2020;Bayuo 2021). From the linear plots of the four models employed for this study as shown (8) q t = t 0.5 k i + C in Fig.…”

Section: Kinetic Modelsmentioning

confidence: 99%

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Adsorption of Cr6+ ion using activated Pisum sativum peels-triethylenetetramine

El‐Nemr

Aigbe

Ukhurebor

et al. 2022

Environ Sci Pollut Res

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The adsorption of Cr6+ ions from water-soluble solution onto activated pea peels (PPs) embellished with triethylenetetramine (TETA) was studied. The synthesized activated TETA-PP biosorbent was further characterized by SEM together with EDX, FTIR and BET to determine the morphology and elementary composition, functional groups (FGs) present and the biosorbent surface area. The confiscation of Cr6+ ions to activated TETA-PP biosorbent was observed to be pH-reliant, with optimum removal noticed at pH 1.6 (99%). Cr6+ ion adsorption to activated TETA-PP biosorbent was well defined using the Langmuir (LNR) and the pseudo-second-order (PSO) models, with a determined biosorption capacity of 312.50 mg/g. Also, it was found that the activated TETA-PP biosorbent can be restored up to six regeneration cycles for the sequestration of Cr6+ ions in this study. In comparison with other biosorbents, it was found that this biosorbent was a cost-effective and resourceful agro-waste for the Cr6+ ion confiscation. The possible mechanism of Cr6+ to the biosorbent was by electrostatic attraction following the surface protonation of the activated TETA-PP biosorbent sites. Graphical abstract

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Section: Preparation Of Biosorbentsmentioning

confidence: 99%

Section: Kinetic Modelsmentioning

confidence: 99%

Section: Kinetic Modelsmentioning

confidence: 99%

Section: Kinetic Modelsmentioning

confidence: 99%

See 2 more Smart Citations

Adsorption of Cr6+ ion using activated Pisum sativum peels-triethylenetetramine

El‐Nemr

Aigbe

Ukhurebor

et al. 2022

Environ Sci Pollut Res

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“…Agricultural waste has attracted interest because it is inexpensive, available in large quantities, non-toxic, and eco-friendly. Some examples are rice husks [9], banana and orange peels [10,11], pistachio (Pistacia vera) waste [12], sugarcane bagasse [13,14], coffee beans [15], tea leaves or stalks [16], Cassia fistula leaves [17], Moringa Oleifera [18], Aloe vera [19] and others [3,20,21]. The surface chemistry heterogeneity can be elevated containing carboxyl, hydroxyl, sulfhydryl, and amido functional groups [21,22], while the surface area and total pore volumes can be high.…”

Section: Introductionmentioning

confidence: 99%

Pitahaya Fruit (Hylocereus spp.) Peels Evaluation for Removal of Pb(II), Cd(II), Co(II), and Ni(II) from the Waters

et al. 2022

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The present study investigated the performance of Pitahaya (Hylocereus spp.) peel (PP) as a low-cost biosorbent in the removal of Co(II), Cd(II), Pb(II), and Ni(II) from single and multi-component solutions. The characterization of the samples was carried out by pHpzc, Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS). Biosorption was carried out by batch experimental procedure to examine the effects of contact time, solution pH, initial concentration of metal ions, and biosorbent dosage. The results indicate that the biosorption of Pb(II), Cd(II), Co(II), and Ni(II) Pitahaya peels followed pseudo-second-order kinetics, and equilibrium adsorption followed the Langmuir model. The maximum sorption capacities of PP for the metallic species were found to be as follows: Pb (82.64 mg g−1) > Cd (17.95 mg g−1) > Co (6.013 mg g−1) > Ni (5.322 mg g−1). However, the efficiency of the biosorption change when the metallic species are mixed. The re-generation of the PP after the adsorption of the metallic species was done using 0.1 M HNO3 solution, and the reusability of the biomass was carried out using two adsorption and desorption cycles.

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Efficient removal of Cr(VI) from aqueous solutions using chitosan/Na‐alginate bio‐based nanocomposite hydrogel

Mahmoud

Sayed

Abdel-Raouf

et al. 2023

J of Applied Polymer Sci

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This research article aimed to assist the works conducted to save water resources, which are rapidly depleted as a result of climate change by eliminating toxic chromium ions Cr(VI) from simulated solution. In this regard, chitosan/Na‐alginate/polyacrylic acid (CS/Na‐Alg/PAAc) and Ni/chitosan/Na‐alginate/polyacrylic acid (Ni@CS/Na‐Alg/PAAc) were created as eco‐friendly hydrogel composites via gamma radiation. The hydrogel matrix served as a basin for the in‐situ formation of Ni nanoparticles. The prepared composites were characterized by the FTIR and XRD analyses. The surface morphology of the nanocomposite was also verified via the SEM. It exhibited a dense packing of the Ni nanoparticles representing about 2.5% of the atomic percentage depicted by the EDX analysis. The swelling performance was investigated versus different pH values and the maximum swelling percent was attained as a non‐Fickian character at pH = 13 and 5 for CS/Na‐Alg/PAAc and Ni@CS/Na‐Alg/PAAc, respectively. Furthermore, the surface topographies of CS/Na‐Alg/PAAc and Ni@CS/Na‐Alg/PAAc loaded with Cr(VI) were examined by AFM at different pH values. The maximum Cr(VI) removal was top achieved at pH 8 (58.06 and 74.5 mg/g for CS/Na‐Alg/PAAc and Ni@CS/Na‐Alg/PAAc, respectively) and best fit with the Freundlich isotherm model with calculated RL values indicated a favorable adsorption.

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An extensive review on chromium (vi) removal using natural and agricultural wastes materials as alternative biosorbents

Cited by 49 publications

References 92 publications

Adsorption of Cr6+ ion using activated Pisum sativum peels-triethylenetetramine

Adsorption of Cr6+ ion using activated Pisum sativum peels-triethylenetetramine

Pitahaya Fruit (Hylocereus spp.) Peels Evaluation for Removal of Pb(II), Cd(II), Co(II), and Ni(II) from the Waters

Efficient removal of Cr(VI) from aqueous solutions using chitosan/Na‐alginate bio‐based nanocomposite hydrogel

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