Cyclic Sequential Removal of Alizarin Red S Dye and Cr(VI) Ions Using Wool as a Low-Cost Adsorbent

Khamis, Mustafa; Ibrahim, Taleb H.; Jumean, F.H.; Sara, Ziad; Atallah, Baraa

doi:10.3390/pr8050556

Cited by 19 publications

(13 citation statements)

References 35 publications

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“…Each adsorbent has its own characteristics, such as porosity, pore structure, adsorbent surface area, and structural specificity [124]. A high range of adsorbents have been studied to remediate dye contaminated waters: clays [125][126][127], chitosan [128,129], cyclodextrin [130][131][132], eggshell [51,[133][134][135], orange peel [136], fluorene-based covalent triazine framework [137], cellulose [138], wool [139], shrimp [140], rice bran hydrogel beads [141], coccine [142], seeds [143,144].…”

Section: Possible Adsorbentsmentioning

confidence: 99%

Factors Affecting Synthetic Dye Adsorption; Desorption Studies: A Review of Results from the Last Five Years (2017–2021)

2021

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The primary, most obvious parameter indicating water quality is the color of the water. Not only can it be aesthetically disturbing, but it can also be an indicator of contamination. Clean, high-quality water is a valuable, essential asset. Of the available technologies for removing dyes, adsorption is the most used method due to its ease of use, cost-effectiveness, and high efficiency. The adsorption process is influenced by several parameters, which are the basis of all laboratories researching the optimum conditions. The main objective of this review is to provide up-to-date information on the most studied influencing factors. The effects of initial dye concentration, pH, adsorbent dosage, particle size and temperature are illustrated through examples from the last five years (2017–2021) of research. Moreover, general trends are drawn based on these findings. The removal time ranged from 5 min to 36 h (E = 100% was achieved within 5–60 min). In addition, nearly 80% efficiency can be achieved with just 0.05 g of adsorbent. It is important to reduce adsorbent particle size (with Φ decrease E = 8–99%). Among the dyes analyzed in this paper, Methylene Blue, Congo Red, Malachite Green, Crystal Violet were the most frequently studied. Our conclusions are based on previously published literature.

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Section: Possible Adsorbentsmentioning

confidence: 99%

Factors Affecting Synthetic Dye Adsorption; Desorption Studies: A Review of Results from the Last Five Years (2017–2021)

2021

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“…The level of BOD, COD, TDS, and TSS will increase proportionally as dyes become more accessible in the water. [1, 4].…”

Section: Introductionmentioning

confidence: 99%

Adsorptive Removal of Alizarin Red S onto Sulfuric Acid-Modified Avocado Seeds: Kinetics, Equilibrium, and Thermodynamic Studies

Balji

Kumar

2022

Adsorption Science & Technology

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The present work evaluates the synthesis of a novel, inexpensive, and environmentally friendly chemically-treated avocado seed powder (CTASP) as an adsorbent in removing alizarin red S (ARS) from synthetic solution. By using a set of analytical techniques, including FTIR, XRD, EDX, RS, and SEM, the adsorbent was characterized for its physical and chemical properties. Batch study experiments were conducted to determine the effectiveness of the CTASP as an adsorbent. The maximum adsorption capacity of 67.08 mgg-1 was attained at optimum conditions of 3 gL-1 adsorbent dosage, pH 3, contact time of 30 min, and at temperature 303 K. After 30 minutes, the equilibrium was reached, and the experimental data was explained for isotherm, kinetic, and thermodynamic processes. The results indicated that pseudo-second-order kinetics and the Freundlich isotherm were the best fits for the data. The findings of the analysis of the thermodynamic parameters for the process showed that the system was an exothermic and spontaneous. According to the desorption studies, 0.1 M NaOH can be utilized as a separating reagent to desorb 90.53% of ARS that was adsorbed. Regeneration experiments were conducted to make the process more practical and affordable, and it was discovered that the CTASP adsorbent could be successfully regenerated up to four times. In comparison with other adsorbents, the current low-cost adsorbent had the exceptional regenerative capability and delivered multilayer adsorption capacity. Additionally, it has been demonstrated that the CTASP is an effective material for the detoxification of ARS dye from wastewater.

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“…ACs have the advantages of high surface area, large pores and diverse surface functional groups with the high stability of chemical, mechanical and thermal (Elmaguana et al, 2020). ACs are used in many fields such as removal of organic pollutants, heavy metals, medical, catalysis, electrode materials in electrochemical devices (Amirza et al, 2017), removal of azo dyes (Khamis et al, 2020), etc. In recent years, ACs adsorption technique has been widely applied in water treatment due to its fast adsorption kinetics, simple design, economic cost, high removal efficiency and insensitivity to toxic substances.…”

Section: Introductionmentioning

confidence: 99%

Evaluate to remove azo dye Chrysoidine Y of activated carbon material produced from bamboo leaves

Tran¹,

Tran

2022

JMES

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Activated carbons (ACs) are well known as the most commonly used adsorbent in water and wastewater treatment. They have many advantage characteristics such as high surface area, large pores and diverse surface functional groups with the high stability of chemical, mechanical and thermal. The aims of this study are to fabricate and evaluate the ability to remove the azo dye Chrysoidine Y in the water of three activated carbon materials from bamboo leaves, including AC30 (6500C/30 minutes); AC45 (6500C/45 minutes) and AC60 (6500C/60 minutes). The material characteristics determined by SEM, EDX, FTIR and BET methods, etc. showed that all three samples had high C content (over 72%) and appeared functional groups with the capacity of removing azo dye as C = C; C - O - C, O - H. The FTIR results indicated that three samples have adsorption spectra from 400÷4000 cm-1 with characteristic bonds such as C = O, O - H, C - C, C = C. When 20 ml of a solution containing 0.25; 0.5; 1 and 2 g of AC30, AC45 and AC60 materials were added the azo dye volume varied from 2, 3, 4 and 5 ml of Chrysoidine Y, the lowest and highest adsorption capacity were recorded of 133.64 and 361.2 mg/g, respectively. With the highest BET surface area up to 108,9202 m2/g, the AC60 material sample achieved a maximum efficiency of 100% at a reaction time of 30 minutes with a Chysoidine dye/distilled water volume ratio of 2/18 (ml), pH 9, adsorbent content of 0.25 g. The results also showed that the activated carbon from bamboo leaves is a potential sorbent material in removing the azo dye in water.

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Cyclic Sequential Removal of Alizarin Red S Dye and Cr(VI) Ions Using Wool as a Low-Cost Adsorbent

Cited by 19 publications

References 35 publications

Factors Affecting Synthetic Dye Adsorption; Desorption Studies: A Review of Results from the Last Five Years (2017–2021)

Factors Affecting Synthetic Dye Adsorption; Desorption Studies: A Review of Results from the Last Five Years (2017–2021)

Adsorptive Removal of Alizarin Red S onto Sulfuric Acid-Modified Avocado Seeds: Kinetics, Equilibrium, and Thermodynamic Studies

Evaluate to remove azo dye Chrysoidine Y of activated carbon material produced from bamboo leaves

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