Characterization and adsorption capacity of raw pomegranate peel biosorbent for copper removal

Ben-Ali, Samia; Jaouali, Imen; Souissi-Najar, Souad; Ouederni, Abdelmottaleb

doi:10.1016/j.jclepro.2016.10.081

Cited by 326 publications

(144 citation statements)

References 52 publications

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“…This performance of sorption as a role of agitation time could be clarified according to the active sites fastening capability, repulsion between already occupied sites and upcoming species, in addition to the incline of concentration among adsorbed substance and sorbent gradually. Comparable result has been documented earlier that with the extend of agitation period the removal course decelerated owing to tiredness of dynamic sites with time and variation in inclination concentration of Ni(II) ions [19]. However, we can examine the effect of temperature by plotting Ct against temperature (T) at fixed time t, by matrix transposition of the data table of Fig.…”

Section: Resultssupporting

confidence: 59%

Contribution to Modelling the Effect of Temperature on Removal of Nickel Ions by Adsorption on Nano-Bentonite

Alakhras¹,

Alabbad²,

Alzamel³

et al. 2018

Asian J. Chem.

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Section: Resultssupporting

confidence: 59%

Contribution to Modelling the Effect of Temperature on Removal of Nickel Ions by Adsorption on Nano-Bentonite

Alakhras¹,

Alabbad²,

Alzamel³

et al. 2018

Asian J. Chem.

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“…With an amount of adsorbent = 7.026 mg and raising the temperature up to 800°C. As shown in Figure , thermal decomposition of RPG can be divided into three main regions: (1) elimination of absorbed water which is equivalent to ∼ 2.5% mass loss at temperature between 30 and 200°C, (2) the region between 200 and 400°C in the d TGA curve which shows four different peaks indicating different decomposition processes occurring at relatively low temperatures and could be attributed to vaporization of volatile compounds as previously reported , (3) the region above 400°C which shows a gradual decomposition of the organic content .…”

Section: Resultsmentioning

confidence: 99%

“…Few studies have been reported on the application of PGP for removal of different HMs from water samples. Peels were used as such (untreated) or after modification (chemically or thermally) [16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Pomegranate peels as versatile adsorbents for water purification: Application of box–behnken design as a methodological optimization approach

El-Azazy

Kalla

Issa

et al. 2019

Env Prog and Sustain Energy

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Pomegranate peels (PGP) were tested as a green adsorbent for the removal of Ni(II) from contaminated water samples. Both raw (RPG), and char/burnt peels (BPG) were tested. A multivariate analysis approach, Box–Behnken (BB) design was executed to augment the efficiency of BPG as adsorbent. Three factors were considered thereof; contact time (CT), adsorbent dose (AD), and heavy metal concentration (HMC). The percentage of heavy metal removal was the designated response (Y). Main effects plot together with analysis of variance (ANOVA) were used to decide on the substantial factors. Obtained results showed that AD was the most significant linear factor, while the interaction between AD*HMC was the most influential two‐way interaction. Contour and response surface plots were used to study the factorial interactions and optimize the response. Desirability function was used to find the best factorial combination for maximum removal of Ni(II). Efficacies of both adsorbents were compared and BPG was more effectual achieving 99.99% removal of Ni(II). Surface morphology was characterized using FTIR, BET, SEM, and EDX analyses. Results indicated that functional groups such as hydroxyl, amino, carboxylic acid are available on surface of PGP and might be responsible for the adsorption process. © 2019 American Institute of Chemical Engineers Environ Prog, 38: e13223, 2019

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“…[1][2][3][4][5][6] Also, there are various polymeric substances which can capture various ions, as a result of the complexation reactions. Such materials are chitosan, 7,8 polythioamide, 9 polypyrrole, 10 polyaniline, 11 etc.…”

Section: Introductionmentioning

confidence: 99%

Cu(II) ions removal from aqueous solution by synthesized Phragmites australis/emeraldine base biocomposite

Lavrova¹,

Velichkova²,

Koumanova³

2017

ECB

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The influence of in situ synthesized biocomposite consisted of Phragmites australis (Pha) -common reed and emeraldine base (Emb) on the removal of copper ion from aqueous media is discussed. The biocomposites were prepared with two different ratios of common reed/aniline (samples Pha/Emb1 and Pha/Emb2, respectively. Physicochemical parameters such as initial copper ion concentration, composite dosage and contact time between the composites and Cu(II) ions in aqueous solution were studied. An assessment of the equilibrium and the kinetics of sorption of copper ions has been made. Removal efficiency of 99.6 % was achieved with Pha/Emb1 and 91.9 % with Pha/Emb2, respectively. The experimental results were fitted to the isotherms of Langmuir, Freundlich, Temkin and DubininRadushkevich. It was established that the Langmuir isotherm is more suitable for the case of emeraldine base and for composite Pha/Emb1, while the Dubinin-Radushkevich isotherm is more suitable for the case of Pha/Emb2 (with higher content of common reed). The influence of the plant quantity in the biocomposite is important for the mechanism of Cu 2+ removal. Physical adsorption and ion exchange are dominant in the case of Pha/Emb1, and Emb, while in the case of Pha/Emb2 the chemical interaction is predominant. The kinetics of Cu(II) adsorption onto biocomposites followed pseudo-second-order model. IntroductionThe industrial wastewaters in most cases contain metal ions which can be removed by chemical or physicochemical processes. Because of their hazard impact on the environment and the high cost of the used methods, it needs to develop new, cost-effective and efficient methods for industrial wastewater treatment. The most widely used methods for metal ions removal from aqueous medium is precipitation, adsorption and ion exchange, because of their effectiveness, low cost and possibility of metal recovery.Increasing attention to the biosorbents such as rice hulls, raw pomegranate peel, peanut shells, sphagnum moss peat, tree fern, as well as dried activated sludge, is paid because they are widely spread, not expensive raw materials.1-6 Also, there are various polymeric substances which can capture various ions, as a result of the complexation reactions. Such materials are chitosan, 7,8 polythioamide, 9 polypyrrole, 10 polyaniline, 11 etc. These polymers can be used either separately or as composites -the combination of different polymers 12,13,15 or combination of the polymer with some adsorbents. [14][15][16] One of the widely used polymeric substance is polyaniline, which conductive properties and complexing ability are well-known. The polyaniline can be found in one of three idealized oxidation states -leucoemeraldine, emeraldine, and (per)nigraniline. The emeraldine form of polyaniline exists as emeraldine salt and emeraldine base. The deprotonated nonconducting emeraldine base has more free electron pairs in its structure in comparison with protonated conducting emeraldine salt, which contribute to its better complexation ability. 17-19The co...

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Characterization and adsorption capacity of raw pomegranate peel biosorbent for copper removal

Cited by 326 publications

References 52 publications

Contribution to Modelling the Effect of Temperature on Removal of Nickel Ions by Adsorption on Nano-Bentonite

Contribution to Modelling the Effect of Temperature on Removal of Nickel Ions by Adsorption on Nano-Bentonite

Pomegranate peels as versatile adsorbents for water purification: Application of box–behnken design as a methodological optimization approach

Cu(II) ions removal from aqueous solution by synthesized Phragmites australis/emeraldine base biocomposite

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