Comparative study on adsorption of cationic and anionic dyes by smectite rich natural clays

Chaari, Islem; Fakhfakh, Emna; Medhioub, Mounir; Jamoussi, Fakher

doi:10.1016/j.molstruc.2018.11.039

Cited by 125 publications

(53 citation statements)

References 25 publications

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“…Metal organic frameworks (MOFs) or coordination polymers (CPs) have been employed recently for the adsorption of these dyes in aqueous media. This new class of organic-inorganic porous materials have a high surface area, tunable pore geometry, and different topological properties, making them a suitable candidates for the treatment of wastewater through dye adsorption [106][107][108][109][110][111][112][113][114][115][116][117][118][119][120][121][122][123] (Tables 2 and 3).…”

Section: Metal Organic Framework (Mofs): Structural Features and Typesmentioning

confidence: 99%

What triggers dye adsorption by metal organic frameworks? The current perspectives

2020

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Section: Metal Organic Framework (Mofs): Structural Features and Typesmentioning

confidence: 99%

What triggers dye adsorption by metal organic frameworks? The current perspectives

2020

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“…The high dispersive nature of clay and zeolites makes reusability studies difficult ( Xu et al., 2012 ). Smectite rich clays, mesoporous zeolites, graphene oxide composites, mesoporous kaolin-based silica, magnesium phyllosilicates, and cellulose hydrogel are some of the natural clay and zeolite-based composites commonly used as adsorbents ( Briao et al., 2018 ; Chaari et al., 2019 ; Li et al., 2015 ; Moscofian et al., 2012 ; Yang et al., 2019 ). Gum arabic, a natural polymer composed of repetitive units of 1,3-linked β-D-galactopyranosyl has versatile applications in environmental applications because since they are cheaper, reusable, and highly efficient in remediation ( Sharma et al., 2018 , Sharma et al., 2018b , Sharma et al., 2018c , Sharma et al., 2018d ).…”

Section: Introductionmentioning

confidence: 99%

Statistical optimization of textile dye effluent adsorption by Gracilaria edulis using Plackett-Burman design and response surface methodology

Venkataraghavan

Thiruchelvi

Sharmila

2020

Heliyon

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Statistical optimization models were employed to optimize the adsorption of textile dye effluent onto Gracilaria edulis . Significant factors responsible for adsorption were determined using Plackett-Burman design (PBD) and were time, pH, and dye concentration. Box-Behnken (BB) design was used for further optimization. The predicted and the experimental values were found to be in good agreement, the coefficient of determination value 0.9935 and adjusted coefficient of determination value 0.9818 indicated that the model was significant. The results of predicted response optimization showed that maximum decolorization could be attained with time 131.51 min, pH 7.48, and dye concentration 23.13%. The model was validated experimentally with 92.65% decolorization efficiency. The experiment was confirmed using Fourier transform infrared spectroscopy (FTIR), high-resolution scanning electron microscope coupled with energy dispersive X-ray analysis (HR-SEM-EDX), X-ray diffraction spectrometry (XRD) and Brunauer-Emmett-Teller (BET) surface area and pore size analysis techniques. Desorption studies at various pH (2–14) were performed and a maximum of 23% of the dye was recovered from the adsorbed biomass.

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“…Still, adsorption is in favor over their counterpart methods due to low cost, hassle free and availability [25]. Basically, adsorption is an entrapment of dye molecules by the adsorbent through both physical and chemical interactions.…”

Section: Introductionmentioning

confidence: 99%

Bioremediation of dyes using coconut parts via adsorption: a review

Chong

Tam

2020

SN Appl. Sci.

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Coconut (Cocos nucifera) is a palm tree belonging to the Arecaceae family that possesses a thousand and one uses. Each part of the tree has it's uses and can be made into products. Also, various parts of the coconut tree have been utilized to remove various types of dyes from water and waste water via chemical, physical and biological methods. Adsorption is one of the widely used physical methods over their counterparts owing to cost efficiency and ease in handling. The key parameters for the adsorption process are the initial concentration of adsorbate, dosage of adsorbent, the pH and contact time. Additionally, the kinetic parameters, equilibrium isotherm and thermodynamics of the adsorption of dyes on the adsorbent were explored.

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Comparative study on adsorption of cationic and anionic dyes by smectite rich natural clays

Cited by 125 publications

References 25 publications

What triggers dye adsorption by metal organic frameworks? The current perspectives

What triggers dye adsorption by metal organic frameworks? The current perspectives

Statistical optimization of textile dye effluent adsorption by Gracilaria edulis using Plackett-Burman design and response surface methodology

Bioremediation of dyes using coconut parts via adsorption: a review

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