Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black

Kholiya, Faisal; Singh, Ankit; Gosai, Amit; Meena, Ramavatar

doi:10.1002/app.50716

Cited by 4 publications

(4 citation statements)

References 66 publications

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“…In addition, hydroxyl and amino functional groups, which increase their chemical reactivity, are essential to adsorb various water contaminants. Chitosan and its derivatives can also be used as adsorbents to remove several other pollutants, including fluorides [128], pigments [129], and phenols [130].…”

Section: Adsorptionmentioning

confidence: 99%

Heavy Metal Ion Adsorbent in Aqueous Solution: A Review on Chitosan and Chitosan Composites

Munirah Muhaidin,

Fatin Hana Naning,

Juniza Md Saad

et al. 2024

ARMNE

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One prominent contributor to environmental degradation is the presence of heavy metal ions, which are commonly introduced into ecosystems through diverse channels, including mining operations, paint manufacturing, battery production, and agricultural practises. The unprocessed waste from these industries typically undergoes direct discharge into rivers and seas, thereby adversely influencing the potable water supply and marine ecosystem. This results in the accumulation of heavy metals within living organisms and subsequent environmental degradation that poses a significant risk to human health, as their prolonged consumption can harm various organs and the nervous system. Therefore, the United States Environmental Protection Agency (US-EPA) and the World Health Organisation (WHO) have established stringent regulations regarding the allowable levels of heavy metal intake, particularly concerning potable water consumption. The imperative lies in surmounting this challenge by discovering the optimal technique for extracting heavy metals. This paper examines the primary methods of eliminating heavy metal ions using chitosan-based materials. Specifically, the methods under scrutiny include electrocoagulation (E.C.), bioremediation, ion-exchange, membrane filtration (purification), and adsorption. Adsorption, as a highly efficient method, presents itself as a viable strategy for the remediation of dyes in textile wastewater due to its advantageous characteristics. Notably, this approach obviates the need for extensive spatial requirements and exhibits a commendably swift treatment duration. Chitosan exhibits promising adsorptive characteristics owing to its advantageous physical attributes, including crystalline structure, porous nature, and particle dimensions, all of which synergistically enhance the adsorption capacity of chitosan. Research findings indicate that the adsorption characteristics of chitosan are subject to variation contingent upon the distinct heavy metal ions under consideration and the specific experimental parameters employed. Hence, optimising these parameters becomes imperative to attain enhanced chitosan adsorption capabilities for heavy metal ion removal.

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Section: Adsorptionmentioning

confidence: 99%

Heavy Metal Ion Adsorbent in Aqueous Solution: A Review on Chitosan and Chitosan Composites

Munirah Muhaidin,

Fatin Hana Naning,

Juniza Md Saad

et al. 2024

ARMNE

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“…Techniques, such as ozonation [10], coagulation [11], electrocoagulation [12], adsorption [13], and membrane separation [14], have been employed for the treatment of wastewater. Nonetheless, adsorption is an inexpensive, straightforward, and commonly used technique for removing organic dyes from wastewater [13,15].…”

Section: Introductionmentioning

confidence: 99%

“…Numerous adsorbent materials, such as zeolites [16], chitosan [5,13,15], magnetic nanocomposites [17,18], graphene oxide [5,7], and activated carbon [19], have been extensively employed to eliminate dyes from wastewater. Activated carbon (AC), a porous material, is a highly effective and widely used adsorbent in wastewater treatment due to its simplicity, reusability, and operational efficiency [19].…”

Section: Introductionmentioning

confidence: 99%

Composite Activated Carbon Modified with AlCl3 for the Effective Removal of Reactive Black 5 Dye from Wastewaters

Tsoutsa,

Tolkou,

Katsoyiannis

et al. 2023

J. Compos. Sci.

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Many industries use huge amounts of synthetic dyes which may release into the wastewater in dyeing processes causing serious damage to aquatic life as they are recalcitrant, nonbiodegradable, stable to oxidizing agents, and toxic. Adsorption on activated carbon has been found to be a very efficient treatment method. In this work, a new adsorbent material composed of activated carbon and aluminum chloride (AC-Al) was prepared for the removal of a commercial anionic and anthraquinonic reactive dye, i.e., Reactive Black 5 (RB5) under various experimental conditions. Several parameters, such as the adsorbent’s dosage, initial RB5 concentration, pH, and contact time, were studied in order to determine the feasibility of AC-Al. According to the results, it was found that there was an increase in RB5 removal as the adsorbent’s dosage increased, especially, in pH 2 ± 0.1, where the removal rate increased, and reaching 100% by 1.0 g/L of AC-Al. Freundlich isotherm and pseudo-second-order kinetic models adequately fit the experimental data, indicating that favorable and heterogeneous adsorption occurred, closer to chemisorption. According to thermodynamics, it was found that the adsorption procedure was endothermic in nature (∆H0 = 62.621 kJ/mol) and spontaneous (∆G0 < 0), and according to the positive value of ∆S0 0.0293 (kJ/mol∙K), there is an increase in random interaction between solid and liquid interfaces. Finally, the AC-Al adsorbent was successfully regenerated and reused for four cycles.

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“…Similarly, CH has been coupled with manganese ferrite biochar [ 26 ], mesoporous silica (MCM-48) [ 27 ], and amidoxime [ 28 ] to demonstrate high adsorption capabilities along with improved adsorbent stabilities. Functional beads were developed by using water soluble agar aldehyde and CH for the removal amido black dye [ 29 ]. Phosphorus-containing composites have received considerable attention due to their excellent chelating (due to the Lewis base properties of phosphate group) and metal-adhesion properties [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Chitosan/Phosphate Rock-Derived Natural Polymeric Composite to Sequester Divalent Copper Ions from Water

et al. 2021

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Herein, a chitosan (CH) and fluroapatite (TNP) based CH-TNP composite was synthesized by utilizing seafood waste and phosphate rock and was tested for divalent copper (Cu(II)) adsorptive removal from water. The XRD and FT-IR data affirmed the formation of a CH-TNP composite, while BET analysis showed that the surface area of the CH-TNP composite (35.5 m2/g) was twice that of CH (16.7 m2/g). Mechanistically, electrostatic, van der Waals, and co-ordinate interactions were primarily responsible for the binding of Cu(II) with the CH-TNP composite. The maximum Cu(II) uptake of both CH and CH-TNP composite was recorded in the pH range 3–4. Monolayer Cu(II) coverage over both CH and CH-TNP surfaces was confirmed by the fitting of adsorption data to a Langmuir isotherm model. The chemical nature of the adsorption process was confirmed by the fitting of a pseudo-second-order kinetic model to adsorption data. About 82% of Cu(II) from saturated CH-TNP was recovered by 0.5 M NaOH. A significant drop in Cu(II) uptake was observed after four consecutive regeneration cycles. The co-existing ions (in binary and ternary systems) significantly reduced the Cu(II) removal efficacy of CH-TNP.

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Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black

Cited by 4 publications

References 66 publications

Heavy Metal Ion Adsorbent in Aqueous Solution: A Review on Chitosan and Chitosan Composites

Heavy Metal Ion Adsorbent in Aqueous Solution: A Review on Chitosan and Chitosan Composites

Composite Activated Carbon Modified with AlCl3 for the Effective Removal of Reactive Black 5 Dye from Wastewaters

Chitosan/Phosphate Rock-Derived Natural Polymeric Composite to Sequester Divalent Copper Ions from Water

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