Magnetic nanocomposite based on polyacrylic acid and carboxylated cellulose nanocrystal for the removal of cationic dye

Samadder, Rajib; Akter, Nahida; Roy, Abinash Chandra; Uddin, Md. Mosfeq; Azam, Md. Shafiul

doi:10.1039/d0ra00604a

Cited by 33 publications

(11 citation statements)

References 63 publications

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“…Samadder et al developed magnetic composites based on polyacrylic acid (PAA) crosslinked with acrylic-functionalized Fe 3 O 4 nanoparticles (M3D) and cCNCs for the removal of the widely used and toxic cationic dye, methylene blue, from aqueous solutions [ 113 ]. The cCNCs were extracted from sawdust waste.…”

Section: Applications Of Ccncsmentioning

confidence: 99%

Preparation and Surface Functionalization of Carboxylated Cellulose Nanocrystals

Lam

Hemraz

2021

Nanomaterials

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In recent years, cellulose nanocrystals (CNCs) have emerged as a leading biomass-based nanomaterial owing to their unique functional properties and sustainable resourcing. Sulfated cellulose nanocrystals (sCNCs), produced by sulfuric acid-assisted hydrolysis of cellulose, is currently the predominant form of this class of nanomaterial; its utilization leads the way in terms of CNC commercialization activities and industrial applications. The functional properties, including high crystallinity, colloidal stability, and uniform nanoscale dimensions, can also be attained through carboxylated cellulose nanocrystals (cCNCs). Herein, we review recent progress in methods and feedstock materials for producing cCNCs, describe their functional properties, and discuss the initial successes in their applications. Comparisons are made to sCNCs to highlight some of the inherent advantages that cCNCs may possess in similar applications.

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Section: Applications Of Ccncsmentioning

confidence: 99%

Preparation and Surface Functionalization of Carboxylated Cellulose Nanocrystals

Lam

Hemraz

2021

Nanomaterials

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“…The dye molecules are stable and challenging to biodegrade under normal conditions, and they are toxic, carcinogenic, and allergenic to the human body [2]. Around 3 × 10 5 tons of synthetic dyes are employed in the textile industry every year [3]. Cationic (basic) and anionic (acidic) dyes are the most commonly used dyes in the textile industry because of their excellent water solubility and relatively low cost [4,5].…”

Section: Introductionmentioning

confidence: 99%

Engineered Superabsorbent Nanocomposite Reinforced with Cellulose Nanocrystals for Remediation of Basic Dyes: Isotherm, Kinetic, and Thermodynamic Studies

2022

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In this study, cellulose nanocrystals (CNCs) were produced from pea peels by acid hydrolysis to be used with pectin and acrylic acid (AAc) to form Pectin-PAAc/CNC nanocomposite by γ-irradiation. The structure, morphology, and properties of the nanocomposite were investigated using Fourier transform infrared spectroscopy (FTIR) and atomic force microscopy (AFM) techniques. The nanocomposite hydrogel was used for the removal of methylene blue dye (MB) from wastewater. The results revealed that the presence of CNCs in the polymeric matrix enhances the swelling and adsorption properties of Pectin-PAAc/CNC. The optimum adsorbate concentration is 70 mg/L. The kinetic experimental data were fit by pseudo-first-order (PFO), pseudo-second-order (PSO), and Avrami (Avr) kinetic models. It was found that the kinetic models fit the adsorption of MB well where the correlation coefficients of all kinetic models are higher than 0.97. The Avr kinetic model has the lowest ∆qe (normalized standard deviation) value, making it the most suitable one for describing the adsorption kinetics. The adsorption isotherm of MB by Pectin-PAAc follows the Brouers–Sotolongo model while that by Pectin-PAAc/CNC follows the Langmuir isotherm model. The negative values of ∆G confirmed the spontaneous nature of adsorption, and the positive value of ∆H indicated the endothermic nature of the adsorption.

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“…When the stirring is stopped, the particles are collected onto the bar. 73 Magnetic cellulose composite aerogels, films, and papers have been demonstrated for the adsorption of heavy metals, 57,[130][131][132][133][134][135][136][137][138] dyes, [139][140][141][142][143][144] drugs, 145 immobilization of enzymes and proteins, 93,[146][147][148][149][150][151] bacteria, 54 and as carriers for drugs. 152 Independent of the type of magnetic particle, the removal of heavy metals or dyes from municipal and industrial wastewater is a challenge that has been solved in numerous prior studies.…”

Section: Magnetic Separation and Foodmentioning

confidence: 99%

Magnetic cellulose: does extending cellulose versatility with magnetic functionality facilitate its use in devices?

Nypelö

2022

J. Mater. Chem. C

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Magnetic nanocomposite based on polyacrylic acid and carboxylated cellulose nanocrystal for the removal of cationic dye

Abstract: A low-cost, highly efficient, and recyclable magnetic nanocomposite has been developed from polyacrylic acid and carboxylated cellulose nanocrystals for the removal of cationic dyes from the wastewater.

Cited by 33 publications

References 63 publications

Preparation and Surface Functionalization of Carboxylated Cellulose Nanocrystals

Preparation and Surface Functionalization of Carboxylated Cellulose Nanocrystals

Engineered Superabsorbent Nanocomposite Reinforced with Cellulose Nanocrystals for Remediation of Basic Dyes: Isotherm, Kinetic, and Thermodynamic Studies

Magnetic cellulose: does extending cellulose versatility with magnetic functionality facilitate its use in devices?

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