Characterization of Punica granatum L. peels and quantitatively determination of its biosorption behavior towards lead(II) ions and Acid Blue 40

Ay, Çiğdem; Erdoğan, Yunus; Özcan, Adnan

doi:10.1016/j.colsurfb.2012.05.013

Cited by 85 publications

(18 citation statements)

References 39 publications

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“…Higher surface area also contributed to the enlargement of the pores and opening of the closed pores. These are in agreement with Ay et al [98], which concluded that physical modification enhanced the adsorption capabilities of pomegranate peel waste as adsorbent. The adsorption capacities against Pb (II) ions is 193.9 mg/g with 98% of metal ions removed from the industrial wastewater.…”

Section: Other Fruits Peel As Adsorbentssupporting

confidence: 93%

Trends in Adsorption Mechanisms of Fruit Peel Adsorbents to Remove Wastewater Pollutants (Cu (II), Cd (II) and Pb (II))

Abd-Talib

Chuo²,

Mohd‐Setapar³

et al. 2020

J. of Wat. & Envir. Tech.

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Currently, there is increasing interest on low cost and commercially available materials for the adsorption of heavy metals. The vital benefits of adsorption technologies are its potential in reducing the concentration of heavy metal ions using low-cost adsorbent materials. Fruit peel wastes (FPW) are readily available in abundance. Furthermore, it has a high potential as a sustainable adsorbent due to its large quantity of lignocellulosic materials. Realizing this potential, there are many studies on various fruit peels waste adsorbents used in the removal of Pb (II), Cu (II) and Cd (II) ions from wastewater. However, there is no comprehensive review of these adsorbents, especially on the factors that influenced the adsorption capacity. Hence, this review aims to study on the various fruit peels waste adsorbents and the factors by comparing the metal binding capacities, metal removal performances, sorbent dosage, optimum pH, temperature, initial concentration and contact time. Finally, the adsorption mechanisms were also discussed.

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Section: Other Fruits Peel As Adsorbentssupporting

confidence: 93%

Trends in Adsorption Mechanisms of Fruit Peel Adsorbents to Remove Wastewater Pollutants (Cu (II), Cd (II) and Pb (II))

Abd-Talib

Chuo²,

Mohd‐Setapar³

et al. 2020

J. of Wat. & Envir. Tech.

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“…While in pomegranate juice: ethanol 70% sample in 3419 cm -1 , 2982 cm -1 and 1649 cm -1 corresponding, respectively, stretching vibration of hydroxyl group, CH2 or CH3 and stretching vibration of C=C (black dashed line) was similar with pomegranate juice: ultrapure water sample (ÖMEROĜLU AY et al, 2012;OLIVEIRA et al, 2016). And peaks observed between 1200-900 cm -1 bands were specific stretching of C-O bonds (red dashed line) (COLDEA et al, 2013).…”

Section: Fourier Transform Infrared Spectroscopy (Ftir)mentioning

confidence: 60%

“…Pomegranate juice: ethanol (99.5%) sample was observed characteristics peaks of ethanol and an intensity reduction between 1650-1600 cm -1 of C=C group (black dashed line). The region between 3371-3419 cm -1 was related to -OH group, the peak in 3000-2980 cm -1 were related to stretching vibration of CH2 or CH3 groups (ÖMEROĜLU AY et al, 2012;OLIVEIRA et al, 2016), and the 1200-900 cm -1 bands were observed frequencies specific of C-O bonds (red dashed line) (COLDEA et al, 2013).…”

Section: Fourier Transform Infrared Spectroscopy (Ftir)mentioning

confidence: 95%

Polyphenols Isolated From Pomegranate Juice (Punica Granatum L.): Evaluation of Physical-Chemical Properties by Ftir and Quantification of Total Polyphenols and Anthocyanins Content / Isolamento De Polifenóis Do Suco Da Romã (Punica Granatum L.): Avaliação Das Propriedades Físico-Química Por Ftir E Quantificação Do Teor Total De Polifenóis E Antocianinas

Souza

Amaral

Alves

et al. 2020

BJD

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“…A wide peak at 3427.34 cm −1 shows stretching vibrations of –OH group attached to Fe 3 O 4 surface [62]. The shifting of all peaks towards a lower frequency and the appearance of a very small peak at 2343.2 cm −1 in Figure 4B indicates that the AB40 dye comes in contact with Fe 3 O 4 after adsorption [9,63].…”

Section: Resultsmentioning

confidence: 99%

Comparative Study of the Adsorption of Acid Blue 40 on Polyaniline, Magnetic Oxide and Their Composites: Synthesis, Characterization and Application

2019

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Conducting polymers (CPs), especially polyaniline (PANI) based hybrid materials have emerged as very interesting materials for the adsorption of heavy metals and dyes from an aqueous environment due to their electrical transport properties, fascinating doping/de-doping chemistry and porous surface texture. Acid Blue 40 (AB40) is one of the common dyes present in the industrial effluents. We have performed a comparative study on the removal of AB40 from water through the application of PANI, magnetic oxide (Fe3O4) and their composites. Prior to this study, PANI and its composites with magnetic oxide were synthesized through our previously reported chemical oxidative synthesis route. The adsorption of AB40 on the synthesized materials was investigated with UV-Vis spectroscopy and resulting data were analyzed by fitting into Tempkin, Freundlich, Dubinin–Radushkevich (D–R) and Langmuir isotherm models. The Freundlich isotherm model fits more closely to the adsorptions data with R2 values of 0.933, 0.971 and 0.941 for Fe3O4, PANI and composites, respectively. The maximum adsorption capacity of Fe3O4, PANI and composites was, respectively, 130.5, 264.9 and 216.9 mg g−1. Comparatively good adsorption capability of PANI in the present case is attributed to electrostatic interactions and a greater number of H-bonding. Effect of pH of solution, temperature, initial concentration of AB40, contact time, ionic strength and dose of adsorbent were also investigated. Adsorption followed pseudo-second-order kinetics. The activation energy of adsorption of AB40 on Fe3O4, PANI and composites were 30.12, 22.09 and 26.13 kJmol−1 respectively. Enthalpy change, entropy change and Gibbs free energy changes are −6.077, −0.026 and −11.93 kJ mol−1 for adsorption of AB40 on Fe3O4. These values are −8.993, −0.032 and −19.87 kJ mol−1 for PANI and −10.62, −0.054 and −19.75 kJ mol−1 for adsorption of AB40 on PANI/Fe3O4 composites. The negative sign of entropy, enthalpy and Gibbs free energy changes indicate spontaneous and exothermic nature of adsorption.

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Characterization of Punica granatum L. peels and quantitatively determination of its biosorption behavior towards lead(II) ions and Acid Blue 40

Cited by 85 publications

References 39 publications

Trends in Adsorption Mechanisms of Fruit Peel Adsorbents to Remove Wastewater Pollutants (Cu (II), Cd (II) and Pb (II))

Trends in Adsorption Mechanisms of Fruit Peel Adsorbents to Remove Wastewater Pollutants (Cu (II), Cd (II) and Pb (II))

Comparative Study of the Adsorption of Acid Blue 40 on Polyaniline, Magnetic Oxide and Their Composites: Synthesis, Characterization and Application

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