Removal of Pb(II) from its aqueous solution by activated carbon derived from Balam Khira (<i>Kigelia Africana</i>)

Singh, Kaman; Gautam, Manisha; Chandra, Bhuwan; Kumar, Ajay

doi:10.1080/19443994.2016.1141328

Cited by 18 publications

(5 citation statements)

References 26 publications

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“…The adsorption kinetics and adsorption isotherms experimental data of the chelating membrane toward Pb(II) at the presence of Fe(III), Ni(II), Cd(II), citrate, NTA, and EDTA were investigated at 298 K (Figure 8). The variation of Pb(II) adsorption versus time was analyzed by the pseudo-first-order and pseudo-second-order models (Adrián et al., 2017; Kalantari et al., 2015; Singh et al., 2016) (see Supplementary material). The analyzed results are shown in Figure S1 and Table S1; the pseudo-second-order parameters are also presented in Table 2.…”

Section: Resultsmentioning

confidence: 99%

Adsorption of Pb(II) by a polyvinylidene fluoride membrane bearing chelating poly(amino phosphonic acid) and poly(amino carboxylic acid) groups

Wang

Liu

et al. 2018

Adsorption Science & Technology

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Pb(II) can cause a hazardous effect on ecosystem and public health due to its high biotoxicity. A polyvinylidene fluoride-type membrane bearing both poly(amino phosphonic acid) and poly (amino carboxylic acid) functional groups was fabricated for the purpose of Pb(II) removal from the aqueous solutions. The adsorption behaviors of the fabricated chelating membrane toward Pb (II) were studied by the series of static and continuous adsorption experiments. When the pH, adsorption equilibrium time, initial Pb(II) concentration, and temperature were 5.1, 300 min, 1.0 mmol g À1 , and 298 K, respectively, Pb(II) uptake of the membrane was 1.1 mmol g À1. The presence of coexisting metal ions and complexing reagents decreased the Pb(II) uptake. The adsorption kinetic and isotherm adsorption followed pseudo-second-order equation and Langmuir model, respectively; this adsorption process showed a spontaneous and exothermic feature. The bed depth service time and Thomas models were suitable for describing obtained breakthrough curves.

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Section: Resultsmentioning

confidence: 99%

Adsorption of Pb(II) by a polyvinylidene fluoride membrane bearing chelating poly(amino phosphonic acid) and poly(amino carboxylic acid) groups

Wang

Liu

et al. 2018

Adsorption Science & Technology

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“…The characteristic diffraction peakes of RSL and ACSL at around 20º-25º were detected and showed no crystalline peak in the 10-70º scanning range thus indicating the amorphous phase of RSL and ACSL. The reason is attributed due to the arrangement of the glycosidic chain, which is hindered by join hydrogen bonding in the crystalline nature and a lack of such hydrogen bonding in the amorphous nature following the preparation of activated adsorbent of adsorbents [29,33].…”

Section: Characterization Of Adsorbentsmentioning

confidence: 99%

Adsorption of Brilliant Green Dye Using Raw and Activated Adsorbent Prepared from Sesbania Leaves

Yadav,

Sharma,

Yadav

2024

ajc

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In present study, the adsorption of brilliant green (BG) dye from an aqueous solution using raw sesbania leaves (RSL) and activated adsorbent of sesbania leaves (ACSL), batch adsorption studies were carried out to evaluate the effects of various parameters such as contact time, initial concentration, adsorbent dosage, pH and temperature on the removal of BG dye from aqueous solution. The maximum percentage removal of BG dye using RSL and ACSL was 73.2 and 93.8, respectively. The best-fitted isotherm for equilibrium data was Freundlich’s and Langmuir’s for ACSL and RSL adsorbents, respectively. The maximum adsorption capacities obtained were 158.74 mg/g and 98.41 mg/g for adsorption of BG dye on ACSL and RSL, respectively. The pseudo-second-order model best fit for the adsorption kinetic studies, which showed that the adsorption of BG dye on both adsorbents (RSL and ACSL) was limited by the chemisorption process. Thermodynamics parameters such as (ΔGº), (ΔHº) and (ΔSº) were also calculated. At 293 K to 333 K, the values of ΔGº lie in the range of 0.9346 to 1.1971 and 6.1199 to 9.0231 for RSL and ACSL, respectively, indicating that the adsorption process is spontaneous and endothermic.

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“…[35][36][37][38] In this method, different adsorbents can be used. [20,21,23,[35][36][37][38][39][40][41][42][43][44] Chitosan, as a natural polymer, is biodegradable, non-toxic, low-cost, and has been used as an efficient adsorbent for the removal of metal ions due to the presence of amine and hydroxyl groups in its skeleton which act as active sites for metal ions adsorption. [35,45] But, low flexibility, high crystallinity, low mechanical strength, and low solubility of chitosan limited the directly used as an adsorbent.…”

Section: Introductionmentioning

confidence: 99%

New chitosan modified with epichlohydrin and bidentate Schiff base applied to removal of Pb²⁺ and Cd²⁺ ions

Jasim

Hachem

Hussein³

et al. 2022

J Chinese Chemical Soc

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In this study, modified chitosan with epichlohydrin and bidentate Schiff base ligand (CEP) was successfully synthesized and characterized using Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), X-ray powderdiffraction (XRD), and scanning electron microscopy (SEM). In addition, its removal ability of Pb 2+ and Cd 2+ ions was studied and the effect of various parameters such as pH solution, sorbent dose, and contact time on the adsorption of Pb 2+ and Cd 2+ ions were investigated and optimized. At optimal conditions (pH of 5, contact time of 90 min, 40 ppm of Pb 2+ , Cd 2+ concentration, and 0.02 g of CEP), the maximum removal percentage of Pb 2+ and Cd 2+ ions was found to be 95 and 79%, respectively. The adsorption process followed the second-order kinetic model for Pb(II) and the first-order kinetic model for Cd(II). In addition, the effect of interface ions was investigated and it was found that the presence of divalent cations only affected the adsorption of Pb(II) and Cd(II) using CEP. Finally, the CEP adsorbent has undergone five regeneration experiments and adsorption efficiency was reduced by about 9 and 12% for Pb(II) and Cd(II) ions, respectively. Results show that the CEP has great potential for the removal of other heavy metal ions as a facile, eco-friendly, and low-cost adsorbent.

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Removal of Pb(II) from its aqueous solution by activated carbon derived from Balam Khira (Kigelia Africana)

Cited by 18 publications

References 26 publications

Adsorption of Pb(II) by a polyvinylidene fluoride membrane bearing chelating poly(amino phosphonic acid) and poly(amino carboxylic acid) groups

Adsorption of Pb(II) by a polyvinylidene fluoride membrane bearing chelating poly(amino phosphonic acid) and poly(amino carboxylic acid) groups

Adsorption of Brilliant Green Dye Using Raw and Activated Adsorbent Prepared from Sesbania Leaves

New chitosan modified with epichlohydrin and bidentate Schiff base applied to removal of Pb²⁺ and Cd²⁺ ions

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Removal of Pb(II) from its aqueous solution by activated carbon derived from Balam Khira (Kigelia Africana)

Cited by 18 publications

References 26 publications

Adsorption of Pb(II) by a polyvinylidene fluoride membrane bearing chelating poly(amino phosphonic acid) and poly(amino carboxylic acid) groups

Adsorption of Pb(II) by a polyvinylidene fluoride membrane bearing chelating poly(amino phosphonic acid) and poly(amino carboxylic acid) groups

Adsorption of Brilliant Green Dye Using Raw and Activated Adsorbent Prepared from Sesbania Leaves

New chitosan modified with epichlohydrin and bidentate Schiff base applied to removal of Pb2+ and Cd2+ ions

Contact Info

Product

Resources

About

New chitosan modified with epichlohydrin and bidentate Schiff base applied to removal of Pb²⁺ and Cd²⁺ ions