Preparation of Semi IPNs-Hydrogel Composite for Removing Congo Red and Bismarck Brown Y from Wastewater: Kinetic and Thermodynamic Study

Al-Niaeem, Huda S.; Abdulwahid, Ali Abdulrazzaq; Hanoosh, W.S.

doi:10.21608/ejchem.2021.66511.3438

Cited by 2 publications

(3 citation statements)

References 53 publications

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“…Further, the values of coefficient of determination, R 2 > 0.9, for MB and S dyes, adsorption confirm the best fit [39]. However, pseudo-second order plot (t/q t vs. t) shown in Figures (16) and (17), did not indicate a good compliance for MB and S dyes adsorption and thus proves the no proximity of the model against the examined data. The intraparticle diffusion mechanism ascribes to the travelling of dye molecules from the bulk of the solution to the solid adsorbent.…”

Section: Kinetic Studiesmentioning

confidence: 76%

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Adsorption of Methylene Blue and Safranine Using Activated Carbon of Cinnamon Plant Surface.

Delfaa Slman Gassed,

Ali Abdulrazzaq Abdulwahid,

Ali A. A. Al-Riyahee

2023

J. K. Chem. Sci.

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Cinnamon plant Activated Carbon (C/AC) was prepared by chemical and thermal activation. The adsorption behaviour of (C/AC) in aqueous Methylene blue (MB) and Safranine (S) dyes was investigated and characterized by XRD, TEM and FESEM. The possible mechanism of the adsorption of (MB) and (S) dyes on the (C/AC) surface was studied. The influence of various adsorption control parameters like the initial dye concentration, pH, contact time, and temperature was studied. The data confirmed a high removal of (MB) and (S) at pH=11. The experimental data were fitted to Langmuir and Freundlich isotherms to examine the adsorption mechanism. The adsorption data reveal (MB) with the maximum capacity of (294.11) mg/g and (S) with the capacity of (285.714) mg/g. The kinetic data for different initial dye concentration were computed using pseudo-first order, pseudo-second order, and intraparticle diffusion model. Thermodynamic parameters includes enthalpy (∆H), entropy (∆S), free energy (∆G), and activation energy (Ea) of the adsorption process were calculated and used to interpret the results, and revealed that the adsorption systems were a spontaneous and endothermic process for adsorption of MB and S dyes onto the adsorbent surface. Also, low activation energy values (Ea<40 kJ/mol) were characteristics of the physisorption mechanism and diffusion-controlled process.

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Section: Kinetic Studiesmentioning

confidence: 76%

“…In addition these methods required high energy, chemical, operational and capital inputs, and advanced technologies. Among advanced treatment methods, adsorption has been found to be good treatment technology for dye removal [13,14], and the researchers have relied on many ideas and new materials used as adsorbent surfaces [15,16].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Methylene Blue and Safranine Using Activated Carbon of Cinnamon Plant Surface.

Delfaa Slman Gassed,

Ali Abdulrazzaq Abdulwahid,

Ali A. A. Al-Riyahee

2023

J. K. Chem. Sci.

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“…In addition to that, repulsion occurs between the negatively charged functional aggregates on the adsorbent surface, swelling, and expansion occur, allowing the adsorbate particles to spread within the adsorbent surface. So, the optimum adsorption conditions for TC and PH were pH > 7 [38][39].…”

Section: Effect Of Solution Phmentioning

confidence: 99%

ZnO-Loaded SA-g-Poly (AC-co-EBS) Hydrogel Nanocomposite as an Efficient Adsorption of Tetracycline and Phenol: Kinetics and Thermodynamic Models

Aljeboree,

Al-Hussainawy,

Altimari

et al. 2024

Indones. J. Chem.

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A synthetic superabsorbent polymer hydrogel nanocomposite was prepared by the free radical graft co-polymerization method. This study included the preparation of two surfaces: first sodium alginate-g-(acrylic acid-co-sodium; 4-ethenylbenzenesulfonate), SA-g-poly (Ac-co-EBS) hydrogel, and second surface hydrogel after zinc oxide loading SA-g-poly (Ac-co-EBS). Hydrogel nanocomposite was prepared from different monomers for the removal of pollutants. The physical characterizations of nanocomposite have been studied using several techniques like UV-vis, FTIR, FE-SEM, TEM, EDX, and XRD. The data from the adsorption study show that E% increases with increasing contact time, with the best agitation time of 1 h, after which the adsorption becomes constant. The increase in adsorbent amount 0.01–0.1 g, the percentage removal of tetracycline (TC) and phenol (PH) increased from 60.639–97.085 and 487.71–94.05%, respectively, and Qe decreased 606.39–97.08 to 487.1831–94.456 mg/g on hydrogel. The ∆H value is endothermic. All processes of adsorption are considered spontaneous, from a negative value of ∆G to a positive value of ∆S. The release of the TC drug was studied in conditions similar to those in the human body in terms of acidity and temperature. The cumulative release of TC drug in 3 h was 50.65%, 42.33%, pH = 7.5 and pH 1.2, respectively.

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Preparation of Semi IPNs-Hydrogel Composite for Removing Congo Red and Bismarck Brown Y from Wastewater: Kinetic and Thermodynamic Study

Cited by 2 publications

References 53 publications

Adsorption of Methylene Blue and Safranine Using Activated Carbon of Cinnamon Plant Surface.

Adsorption of Methylene Blue and Safranine Using Activated Carbon of Cinnamon Plant Surface.

ZnO-Loaded SA-g-Poly (AC-co-EBS) Hydrogel Nanocomposite as an Efficient Adsorption of Tetracycline and Phenol: Kinetics and Thermodynamic Models

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