Synthesis and characterization of La(III) supported carboxymethylcellulose-clay composite for toxic dyes removal: Evaluation of adsorption kinetics, isotherms and thermodynamics

Sirajudheen, P.; Karthikeyan, Perumal; Vigneshwaran, Sivakumar; Meenakshi, Sankaran

doi:10.1016/j.ijbiomac.2020.06.103

Cited by 70 publications

(28 citation statements)

References 47 publications

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“…As a cost-efficient binder in biomass pellets (for reduction of excessive fuel-loss) [69,70], auxiliary material for electrodes in battery cells [71][72][73], supercapacitor aerogels for efficient energy storage [74,75], CMC and its various composites have attracted huge attention during recent years. In water treatment processes, CMCbased hybrid composites, especially their hydrogels, have demonstrated some promising results over the past two decades for effective removal of dye pollutants [76][77][78], various inorganic metal ions (including heavy metals in their complex ionic states) [79][80][81], and even some radionuclides [82,83] from various contaminated waters. Moreover, applications of CMC have also been proposed in various fields such as in the paper industry to provide strengthening property, good printability or ink retention, color stability, fire retardancy features of CMC [84][85][86][87]; in paper or wood adhesives for a better adhesion property [88,89]; and in Si anodic electrodes for their potential binding capacity and cyclic performance [90].…”

Section: Introductionmentioning

confidence: 99%

Recent Developments of Carboxymethyl Cellulose

et al. 2021

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Carboxymethyl cellulose (CMC) is one of the most promising cellulose derivatives. Due to its characteristic surface properties, mechanical strength, tunable hydrophilicity, viscous properties, availability and abundance of raw materials, low-cost synthesis process, and likewise many contrasting aspects, it is now widely used in various advanced application fields, for example, food, paper, textile, and pharmaceutical industries, biomedical engineering, wastewater treatment, energy production, and storage energy production, and storage and so on. Many research articles have been reported on CMC, depending on their sources and application fields. Thus, a comprehensive and well-organized review is in great demand that can provide an up-to-date and in-depth review on CMC. Herein, this review aims to provide compact information of the synthesis to the advanced applications of this material in various fields. Finally, this article covers the insights of future CMC research that could guide researchers working in this prominent field.

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Section: Introductionmentioning

confidence: 99%

Recent Developments of Carboxymethyl Cellulose

et al. 2021

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“…Δ H ° values of <40 kJ mol ‒1 endorsed the physisorption and negative values of Δ H ° confirmed the exothermic nature of the adsorption system. [ 34 ] A negative Δ S ° value showed the regularity at the liquid and solid phases during the dye adsorption process on MagMt.…”

Section: Resultsmentioning

confidence: 99%

Adsorption of Diazo Dye from Aqueous Solutions by Magnetic Montmorillonite Composite

Akar

Ozdemir

Sayin

et al. 2020

CLEAN Soil Air Water

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Synthetic dyes have complex molecular structures and are stable molecules against oxidizing agents, sunlight, and microbial attack. Therefore, the treatment of dye‐containing wastewater using appropriate techniques is of great importance. Difficulties in separation and recovery of an adsorbent from the solution limit the large‐scale applications of the adsorption process. A magnetic separation technique can be adapted to the adsorption process to overcome these limitations. In this study, a natural mineral‐based magnetic adsorbent is prepared by a co‐precipitation method. Adsorption performance of magnetic montmorillonite (MagMt) is evaluated in both batch and continuous systems as a function of initial pH, contact time, adsorbent dosage, ionic strength, flow rate, and bed depth. MagMt is characterized through infrared (IR) spectroscopy, scanning electron microscopy (SEM), energy dispersive X‐ray analysis (EDX), vibrating sample magnetometer (VSM), X‐ray diffraction (XRD), and zeta potential measurement. Sorption yield of MagMt for Bismark Brown‐Y (BB‐Y) is found as maximum (98.60%) at pH 4 with 40 mg adsorbent. Fast sorption equilibrium is attained within 10 min and the sorption data follow the pseudo‐second‐order kinetic model and Langmuir isotherm model. The maximum monolayer sorption capacity of MagMt is 138.70 mg g‒1.

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“…First-order and pseudo-second-order models (equations 3, 4) were used to study the variations in adsorption with time [14][15] . The better correlation coefficient values were noted with pseudosecond-order model compared to the first-order kinetics (Fig.…”

Section: Application To the Removal Of Pb 2+ From Watermentioning

confidence: 99%

Photoluminescent Carbon Dot-Intercalated Bentonite: A Light Responsive Nanohybrid for Lead Removal

Jlassi¹,

Ak²,

Mutahir³

et al. 2021

Preprint

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<p>This work describes the preparation of novel fluorescent bentonite clay (BP), modified with carbon quantum dots nanomaterials (CDs), and its usage as lead removal platform, the CDs was prepared using graphitic waste serving as carbon source material via hydrothermal method, and the as obtained CDs were found to be fluorescent, in spherical shape, positively charged and smaller than 5 nm. Encouraged by their structure and photoluminescence feature, they were used hereafter as intercalants or surface modifiers, in order to make fluorescent bentonite nanocomposites. Bentonite was used as negatively charged model of aluminosilicate and reacted with the positively charged CDs. Interestingly, CDs were found to intercalate bentonite as judged from XRD patterns, and TEM. Indeed, the basal distance of bentonite clay d(001) shifted from 1.2 nm to 2.9 nm, after bentonite modification using the prepared carbon dots; moreover the XRD pattern of BP-CDs recorded in the some regions show some additional diffraction peaks along with those for bentonite. The peaks centered at 2Ѳ =27 degree allocated to the facets of graphitic-like carbon, originated from the introduced carbon dots inside bentonite galleries. The prepared materials were characterized by XPS, FTIR and fluorescence analysis. The obtained results indicate that CDs were successfully intercalated inside bentonite matrix and found to be stable over time. The BP-CD nanocomposites were finally used as efficient hybrid platform for led removal with and extraction efficiently of 95% under light condition, room temperature under alkaline conditions and after only 10 min of reaction. </p>

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Synthesis and characterization of La(III) supported carboxymethylcellulose-clay composite for toxic dyes removal: Evaluation of adsorption kinetics, isotherms and thermodynamics

Cited by 70 publications

References 47 publications

Recent Developments of Carboxymethyl Cellulose

Recent Developments of Carboxymethyl Cellulose

Adsorption of Diazo Dye from Aqueous Solutions by Magnetic Montmorillonite Composite

Photoluminescent Carbon Dot-Intercalated Bentonite: A Light Responsive Nanohybrid for Lead Removal

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