Adsorptive/desorptive potential of cationic basic yellow 28 (by28) dyes onto natural untreated clay from aqueous phase

Chaari, Islem

doi:10.15406/oajs.2018.02.00048

Cited by 3 publications

(3 citation statements)

References 14 publications

(12 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“… Sorbent type qm (mg/g) Operating parameters Reference pH Conc. (mg/L) Sorbent dose (g/L) reed 140 6 100 0.5 [ 84 ] coal-based granular activated carbon 3.8285 9 150 0.8 [ 85 ] Seaweed 4.7 5 25 5 [ 86 ] conch shells 34.08 11 25 6 [ 87 ] calcined mussel shells 14.62 10 50 1 [ 88 ] Calcined eggshells 28.87 10 60 2 [ 89 ] clinoptilolite 8.7 6.5 15 0.75 [ 90 ] Green algae 27 9 50 0.5 [ 91 ] Tea waste 43.88 6 100 20 [ 92 ] Moroccan Clay 60 12 300 30 [ 93 ] Natural untreated clay 76.92 11 80 2 [ 17 ] activated carbon (apricot stones) 77.7 ...…”

Section: Resultsmentioning

confidence: 99%

“…Kaolin clay is a promising adsorbent and attracts attention due to the alternative low-cost, eco-friendly, and highly abundant. Specifically, kaolin from different country has been investigated to remove different dyes form aqueous solution like malachite green [9], basic red 46 and direct blue 85 [10], methyl orange [11], violet 5Rand acid blue 25 [12], methylene blue, crystal violet and congo red [13], methylene blue [14,15], methyl violet 10B [16], basic yellow 28 dye [17], brilliant green and crystal violet [18], reactive red 120 [19]. The other important thing is that natural adsorbents, such zeolite, and clay-based (bentonite, kaolin, and montmorillonite) adsorbents, in addition to good rheological and adsorptive properties, are cost-effective, eco-friendly, widely used owing to their simplicity, and good efficiency and their simple regeneration techniques [20].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and characterization of Ethiopian kaolin for the removal of basic yellow (BY 28) dye from aqueous solution as a potential adsorbent

Aragaw

Angerasa

2020

Heliyon

View full text Add to dashboard Cite

In the present research, the kaolin adsorbents (beneficiated, raw powder, and calcined) were prepared from Ethiopian natural kaolin through mechanical, wet, and thermal processes. The geochemical and surface properties of kaolin adsorbent were characterized using FTIR, SEM/EDS, XRD, and XRF. In the batch experiment, basic operation parameters (initial dye concentrations, pH, temperature, contact time, and adsorbent dosage) were examined. Percentage removal efficiency basic yellow 28 (BY28) dye were recorded as 94.79%, 92.08%, and 87.08% onto beneficiated, raw, and calcined kaolin absorbents, respectively at an initial dye concentration of 20 mg/L, solution pH of 9, the temperature of 30 C C, and contact time of 60 min and adsorbent dosage of 1g/ 100L. The molar ratio of SiO 2 /Al 2 O 3 was recorded as 2.911 Percent mass composition of Ethiopian kaolin which is higher than the expected pure kaolinite standard which allows us to classify the kaolin clay as a siliceous one. The calculated values of ΔG 0 for beneficiated adsorbent are-1.243, 1.576, and 4.396 kJ/mol at 303.15, 323.15, and 343.15 K, respectively for 20 mg/L of dye concentration and solution pH of 9, suggests that the thermodynamic behavior at lowest temperature is more feasible and spontaneous as compared with the higher temperature one. A similar fashion was calculated for raw and calcined adsorbents. The negative values of ΔH o and ΔS suggest that the adsorption phenomenon is exothermic and the adsorbate molecules are organized on the solid phase in a more disordered fashion than the liquid phase. The pseudo-first-order and pseudo-second-order models have been used to describe the kinetics in the adsorption processes. The Pseudo-second-order model has been fitted for the BY 28 dye adsorption in the studied concentration range. The adsorption of BY 28 dye for raw and calcined adsorbents follows the Langmuir isotherm and the Freundlich isotherm fitted for the beneficiated adsorbent. The amount of BY28 dye taken up by beneficiated, raw, and calcined kaolin adsorbents was found as 1.896, 1.842, and 1.742 mg/g, respectively at a contact time of 1.0 h, the adsorbent dosage of 1.0 g, initial dye concentration ¼ 20 mg/L and solution pH ¼ 9 at 30 C. The results found that these raw and prepared local kaolin adsorbents have a capacity as low-cost alternatives for the removal of dyes in industrial wastewater.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of Ethiopian kaolin for the removal of basic yellow (BY 28) dye from aqueous solution as a potential adsorbent

Aragaw

Angerasa

2020

Heliyon

View full text Add to dashboard Cite

show abstract

“…Therefore, experimental adsorption isotherms and kinetics are compared with the isotherms and kinetics given in Table 4 and Table 5, respectively. Interparticle diffusion (10) [26] In thermodynamic investigations, it should first be decided whether the adsorption process is spontaneous or not. The Gibbs free energy change (∆G 0 ) is an indication of spontaneity and therefore is an important criterion.…”

Section: Characterizationsmentioning

confidence: 99%

Adsorption Characteristics and Behaviors of Natural Red Clay for Removal of BY28 from Aqueous Solutions

Laçin¹,

Haghighatnia²,

Sevim³

2019

IJTSRD

View full text Add to dashboard Cite

The present study deals with the analysis and adsorption of Basic Yellow 28 (BY28) onto low-cost natural red clay (NRC). Adsorbent characterized by XRD, SEM, TG/DTA, BET and BJH. The effect of the contact time, the temperature, the initial concentration, the pH and the adsorbent mass and on adsorption process were investigated using by batch adsorption technique and then the adsorption isotherm, kinetics, thermodynamics and equilibrium studies were performed. The pH effect on the removal of BY28 efficiency was not important. It was found that the isotherm model best suited to the equilibrium data obtained from the adsorption of BY28 on NRC was the pseudo-second order. It was found that the kinetic model best suited to the data obtained from the adsorption of BY28 on NRC was the Langmuir model. The maximum monolayer adsorption capacity was 370 mg. g-1. In the thermodynamic studies, it can be said that the adsorption of BY28 onto NRC takes place spontaneously, physically and endothermic ally. Finally, the use of NRC shows a greater potential for the removal of cationic dyes, as no costly equipment is required.

show abstract

Removal of methyl violet by Moroccan clays: kinetics study and equilibrium mechanism

Bentahar

Hurel

Draoui

et al. 2021

Chemical Engineering Communications

View full text Add to dashboard Cite

Adsorptive/desorptive potential of cationic basic yellow 28 (by28) dyes onto natural untreated clay from aqueous phase

Cited by 3 publications

References 14 publications

Synthesis and characterization of Ethiopian kaolin for the removal of basic yellow (BY 28) dye from aqueous solution as a potential adsorbent

Synthesis and characterization of Ethiopian kaolin for the removal of basic yellow (BY 28) dye from aqueous solution as a potential adsorbent

Adsorption Characteristics and Behaviors of Natural Red Clay for Removal of BY28 from Aqueous Solutions

Removal of methyl violet by Moroccan clays: kinetics study and equilibrium mechanism

Contact Info

Product

Resources

About