Efficient removal of phenol compounds from water environment using Ziziphus leaves adsorbent

Bsoul, Abeer Al; Hailat, Mohammad; Abdelhay, Arwa; Tawalbeh, Muhammad; Al‐Othman, Amani; Al-kharabsheh, Isra' Nawaf; Al-Taani, Ahmed A.

doi:10.1016/j.scitotenv.2020.143229

Cited by 84 publications

(17 citation statements)

References 69 publications

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“…In this study, two-parameter adsorption isotherm models (Langmuir Equation ( 8) [49], Freundlich Equation ( 9) [50], Jovanovic Equation (10) [51], and Temkin Equation ( 11) [52]) and three-parameter adsorption isotherm models (Redlich-Peterson [53] Equation ( 12) and Brouers-Sotolongo Equation ( 13) [54]) were applied to the investigated systems as shown in Figure 11. The parameters of these isotherms are shown in Table 3.…”

Section: Adsorption Isotherm Modelsmentioning

confidence: 99%

Engineered Superabsorbent Nanocomposite Reinforced with Cellulose Nanocrystals for Remediation of Basic Dyes: Isotherm, Kinetic, and Thermodynamic Studies

2022

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In this study, cellulose nanocrystals (CNCs) were produced from pea peels by acid hydrolysis to be used with pectin and acrylic acid (AAc) to form Pectin-PAAc/CNC nanocomposite by γ-irradiation. The structure, morphology, and properties of the nanocomposite were investigated using Fourier transform infrared spectroscopy (FTIR) and atomic force microscopy (AFM) techniques. The nanocomposite hydrogel was used for the removal of methylene blue dye (MB) from wastewater. The results revealed that the presence of CNCs in the polymeric matrix enhances the swelling and adsorption properties of Pectin-PAAc/CNC. The optimum adsorbate concentration is 70 mg/L. The kinetic experimental data were fit by pseudo-first-order (PFO), pseudo-second-order (PSO), and Avrami (Avr) kinetic models. It was found that the kinetic models fit the adsorption of MB well where the correlation coefficients of all kinetic models are higher than 0.97. The Avr kinetic model has the lowest ∆qe (normalized standard deviation) value, making it the most suitable one for describing the adsorption kinetics. The adsorption isotherm of MB by Pectin-PAAc follows the Brouers–Sotolongo model while that by Pectin-PAAc/CNC follows the Langmuir isotherm model. The negative values of ∆G confirmed the spontaneous nature of adsorption, and the positive value of ∆H indicated the endothermic nature of the adsorption.

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Section: Adsorption Isotherm Modelsmentioning

confidence: 99%

Engineered Superabsorbent Nanocomposite Reinforced with Cellulose Nanocrystals for Remediation of Basic Dyes: Isotherm, Kinetic, and Thermodynamic Studies

2022

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“…If the value of 1/n is above one, then this indicates cooperative adsorption. On the other hand, if the value of 1/n is between zero and one, then the adsorption is a chemisorption process, which becomes more heterogeneous as the value of 1/n approaches zero [49,50]. In the present study, the value of 1/n is between zero and one for the three investigated metal ions as displayed in Table 5.…”

Section: Ce Qementioning

confidence: 66%

Synthesis of new functionalized Calix[4]arene modified silica resin for the adsorption of metal ions: Equilibrium, thermodynamic and kinetic modeling studies

Jalbani

Solangi

Memon

et al. 2021

Journal of Molecular Liquids

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In this study, a new efficient resin-based material has been synthesized through the surface modification of silica by functionalized calix [4]arene and applied for the adsorption of metal ions from aqueous media. The synthesis of functionalized calix[4]arene modified silica (FCMS) resin was characterized by FTIR, CHNS, BET surface area, SEM analyses. The FCMS resin has high thermal and chemical stabilities that were checked by the thermogravimetric analysis and various acidic/basic conditions. The efficiency of the FCMS resin was checked by performing a set of batch experiments under optimized parameters such as concentration of the metal solution, pH, resin dosage, time, temperature, and competitive adsorption in mixed solutions. The results showed that better adsorption has been achieved at pH 7, with 25 mg adsorbent dosage and 10 min contact time. The equilibrium kinetic study showed that the metal adsorption follows the pseudo 2nd order kinetic model with quite high coefficients of determination values (R 2 > 0.99). The experimental data have been validated by applying three adsorption isotherm models and the results revealed that the Freundlich isotherm model (R 2 > 0.99) was the best fit for the adsorption of Cu 2+ , Pb 2+ , and Cd 2+ ions. However, the sorption energy calculated from the D-R isotherm model for Cu 2+ , Pb 2+ , and Cd 2+ ions suggested that an ion-exchange mechanism is involved on the surface of the FCMS resin. The thermodynamic data demonstrated that the reaction is spontaneous and endothermic. The FCMS resin was also applied on real wastewater samples and the results demonstrated that the resin has a good ability to treat metal-contaminated wastewater.

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“…In turn, the physical and chemical qualities of the adsorbent and adsorbate as well as the reaction type determine the impact of temperature, regardless of whether it is favourable or unfavourable. In general, temperature rise causes an increase in the rate of endothermic chemical reactions, whereas temperature and exothermic reactions are inversely proportional 47 . In this research, three temperatures (i.e., 298, 308, and 318 K) were employed to assess the impact of temperature.…”

Section: Resultsmentioning

confidence: 99%

Trimethylamine functionalized radiation-induced grafted polyamide 6 fibers for p-nitrophenol adsorption

Saber

Abdullah

Jamil

et al. 2021

Sci Rep

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The method of pre-irradiation grafting was used with the aid of electron beam (EB) accelerator to accomplish the grafting of polyamide 6 fibers (PA6) with glycidyl methacrylate (GMA). The extent to which GMA was grafted on PA6 was found to be markedly influenced by the absorbed dose of radiation and the reaction time of grafting. Trimethylamine (TMA) was afterwards employed for the functionalization of GMA-grafted fibers (PA6-g-GMA). A range of analyses (e.g., FTIR, FESEM, XRD, BET, and pHpzc) were carried out to determine the physiochemical and morphological properties of the fibrous adsorbent. p-Nitrophenol (PNP) adsorption from aqueous solution was conducted with the resulting TMA-(PA6-g-GMA) adsorbent. The adsorption behaviour of PNP on the fibrous adsorbent was clarified by investigating the adsorption kinetics and isotherm. According to the results, the adsorption of PNP on TMA-(PA6-g-GMA) reflected the pseudo-second order model. Meanwhile, the isotherm analysis revealed that the best description of the equilibrium data was provided by Redlich–Peterson model, followed closely by Langmuir isotherm model. The achieved adsorption capacity was highest at 176.036 mg/g. Moreover, the adsorption was indicated by the thermodynamic analysis to be spontaneous and exothermic. Regeneration and recycling of the adsorbent was possible for a minimum of five cycles with no reduction in adsorption capacity. It was concluded that the fibrous adsorbent could have applications for the removal of PNP at industrial pilot scale.

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Efficient removal of phenol compounds from water environment using Ziziphus leaves adsorbent

Cited by 84 publications

References 69 publications

Engineered Superabsorbent Nanocomposite Reinforced with Cellulose Nanocrystals for Remediation of Basic Dyes: Isotherm, Kinetic, and Thermodynamic Studies

Engineered Superabsorbent Nanocomposite Reinforced with Cellulose Nanocrystals for Remediation of Basic Dyes: Isotherm, Kinetic, and Thermodynamic Studies

Synthesis of new functionalized Calix[4]arene modified silica resin for the adsorption of metal ions: Equilibrium, thermodynamic and kinetic modeling studies

Trimethylamine functionalized radiation-induced grafted polyamide 6 fibers for p-nitrophenol adsorption

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