Simultaneous determination of heavy metals and cationic dyes from industrial effluent by prawn shell derived chitosan-g-poly(acrylic acid) biocomposite

Rahman, Mohammed Mizanur; Lata, Nurun Nahar; Rimu, Sunzida H.; Chisty, Adib H.

doi:10.5004/dwt.2021.26859

Cited by 3 publications

(3 citation statements)

References 23 publications

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“…[1] This encouraged the use of microwave technology in adsorbents synthesis. Several studies have been published focusing on microwave heating mechanism, [19] the influence of microwave heating mode on porous carbon structure and properties, [20] and MW industrial application. [21][22][23] The synthesis of adsorbents with microwave assistance and their adsorptive behavior toward water contaminants have been the subject of an increasing number of research articles over the last decade.…”

Section: Introductionmentioning

confidence: 99%

“…Poly (acrylic acid) (PAA) has garnered significant interest due to its composition, which features a carboxyl group in each repeated unit. This attribute enables PAA to have a strong affinity for metal ions and organic pollutants and facilitates their adsorption [20] . Poly(acrylic acid) is a widely used anionic polyelectrolyte that is soluble in water, and is frequently used in the production of hydrogels, superabsorbent, ion exchange resins, as well as dispersing and binding agents [21–23] .…”

Section: Introductionmentioning

confidence: 99%

“…This attribute enables PAA to have a strong affinity for metal ions and organic pollutants and facilitates their adsorption. [20] Poly(acrylic acid) is a widely used anionic polyelectrolyte that is soluble in water, and is frequently used in the production of hydrogels, superabsorbent, ion exchange resins, as well as dispersing and binding agents. [21][22][23] In our previous work, poly(acrylic acid-co-styrene)/clay nanocomposite was synthesized via in-situ radical polymerization and used for removing blue methylene (MB) from aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

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Microwave‐Assisted Soft Method for Synthesis of Poly (Acrylic Acid)/Organo‐clay Composites: Application As Superabsorbent For Phenol and Cr (VI)

Djamaa,

Chebout,

Bachari

et al. 2023

ChemistrySelect

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A series of superabsorbent composites (PAA/HDTMA‐MMT) based on poly (acrylic acid) (PAA) and different content of organo‐modified natural clay HDTMA‐MMT (1,3 and 5 wt.%) were synthesized via in‐situ radical polymerization using microwave method. This eco‐friendly route was chosen to avoid the use of toxic solvents and reduce polymerization time. In addition, it can be considered an efficient approach for industrial‐scale polymer synthesis. The microstructure of the obtained hydrogels was evidenced by Fourier transformation infrared spectroscopy (FTIR), X‐ray diffraction (XRD), and scanning electron microscopy (SEM). Thermal stability was examined according to nano‐filler content on the matrix. The composite (PAA/HDTMA‐MMT) at 3 wt % exhibits an important swelling capacity value (833.33 g g−1). The efficiency of the synthesized hydrogel composites for phenol and Cr (VI) uptakes from aqueous solutions was studied in batch experiments. The main reason for their selection is their remarkable industrial use, despite their high toxicity and persistence in the environment. In order to underline the mechanism of the phenol and Cr (VI) adsorptions on the (PAA/HDTMA‐MMT), respectively, the zeta potential of the hydrogel was evaluated. Maximum adsorption capacity values of 170.7 mg g−1 and 197.3 mg g−1 were screened for phenol and Cr(VI), respectively. The adsorption process concurs with pseudo‐second‐order kinetics and with the Langmuir isotherm equation. A very high adsorption capacity (qmax=225.2 mg g−1) and a correlation coefficient of 0.998 calculated from isotherm equations show the high efficiency of the adsorbent and thus expected to be a good adsorbent candidate for wastewater treatment. The thermodynamic studies evidenced the exothermic character of the adsorption reactions of the studied pollutants.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microwave‐Assisted Soft Method for Synthesis of Poly (Acrylic Acid)/Organo‐clay Composites: Application As Superabsorbent For Phenol and Cr (VI)

Djamaa,

Chebout,

Bachari

et al. 2023

ChemistrySelect

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The use of chitosan-based composites for environmental remediation: A review

Ahmed

Mohamed

2023

International Journal of Biological Macromolecules

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Chitosan/Silica Nanocomposite Preparation from Shrimp Shell and Its Adsorption Performance for Methylene Blue

et al. 2022

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In this study, novel chitosan/silica composites with different mass ratios were prepared by in-situ hydrolysis using chitosan (from shrimp shell) as a carrier, triblock copolymer (P123) as the structure-directing agent, and ethyl orthosilicate as a silicon source. These nanocomposites were characterized by different techniques, including the FT-IR, XRD, TGA, SEM, TEM and N2 adsorption–desorption. The results indicated that the morphology and properties of composites changed with the introduction of silica. When the CS/TEOS mass ratio was 0.0775, the CS−2/SiO2 composite displayed a coral-like three-dimensional porous structure with specific surface area of 640.37 m2/g and average pore size of 1.869 nm. The adsorption properties for methylene blue (MB) were investigated as well and the CS−2/SiO2 showed better adsorption performance. The removal rate for MB reached 94.01% with absorbents dosage of 6 g/L, initial concentration of 40 mg/L, initial pH value of 7, temperature of 35 °C, and adsorption time of 40 min. The adsorption process well fitted the Langmuir isothermal model and quasi-second-order adsorption kinetics model. The maximum adsorption capacity for MB was 13.966 mg/g based on Langmuir fitting. The surface functional groups of the composites can play an important role in the adsorption. The adsorption mechanism of CS−2/SiO2 on MB involved electrostatic interaction, hydrogen bonding and functional group complexation. In addition, the prepared chitosan/silica composites showed good reusability at six cycles, making them a promising material in the application of removing dyeing wastewater.

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Simultaneous determination of heavy metals and cationic dyes from industrial effluent by prawn shell derived chitosan-g-poly(acrylic acid) biocomposite

Cited by 3 publications

References 23 publications

Microwave‐Assisted Soft Method for Synthesis of Poly (Acrylic Acid)/Organo‐clay Composites: Application As Superabsorbent For Phenol and Cr (VI)

Microwave‐Assisted Soft Method for Synthesis of Poly (Acrylic Acid)/Organo‐clay Composites: Application As Superabsorbent For Phenol and Cr (VI)

The use of chitosan-based composites for environmental remediation: A review

Chitosan/Silica Nanocomposite Preparation from Shrimp Shell and Its Adsorption Performance for Methylene Blue

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