Adsorption and desorption of malachite green by using chitosan-deep eutectic solvents beads

Sadiq, Abubakar; Rahim, Nurul Yani; Suah, Faiz Bukhari Mohd

doi:10.1016/j.ijbiomac.2020.09.029

Cited by 77 publications

(25 citation statements)

References 36 publications

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“…Several types of adsorbents have been tested for their capacity to remove dyes from effluentse.g., silica gel (Andrzejewska et al 2007), alumina (Adak et al 2005), zeolites (Alver & Metin 2012) and modified chitosan (Sadiq et al 2020). With respect to MG removal, the adsorbents tested include magnetic microspheres (Pan et al 2019), microplastics (Lin et al 2020), activated carbon (Qu et al 2019) and carbon composites (Adebayo et al 2020).…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Malachite green removal using ionic flocculation

Teixeira

Melo

Fernandes

et al. 2022

Water Practice and Technology

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The use of ionic flocculation is proposed to remove malachite green (MG), in this case, from water. A surfactant with the polluted solution and calcium is added. The surfactant-calcium reaction forms a precipitate, which aggregates into flocs on agitation. The flocs adsorb MG, which can then be removed by centrifugation. Ionic flocculation was assessed by varying parameters including: surfactant and MG concentrations, electrolyte content, pH, contact time, etc. The isotherm and adsorption kinetic models that best fit this process are the Langmuir and pseudo-second order models, respectively. MG removal efficiency of 96% was obtained at pH 9, with surfactant concentration 1,400 mg L−1, MG concentration 10 mg L−1 and contact time 10 minutes. The process has potential for pollutant removal.

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Section: Graphical Abstract Introductionmentioning

confidence: 99%

Malachite green removal using ionic flocculation

Teixeira

Melo

Fernandes

et al. 2022

Water Practice and Technology

View full text Add to dashboard Cite

show abstract

“…Table 3 gives us the comparison of Maximum adsorption capacity qm (mg/g) for the removal of Malachite green using various adsorbents comprising results of present study [29,41,[43][44][45][46][47][48][49][50][51][52][53][54]. It clearly shows that the blends of chitosan-cellulose exhibited moderate adsorption capacity when compared to other adsorbents.…”

Section: Adsorbent Reusabilitymentioning

confidence: 89%

A Green Approach to the Removal of Malachite Green Dye from Aqueous Medium Using Chitosan/Cellulose blend

Shetty

Yashodha

Johns

2022

Preprint

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The usage of cost effective, ecofriendly and highly efficient adsorbent to the removal of dye from aqueous solution is presented in this paper. This work focusses on the prospective use of Chitosan/Cellulose blend to remove the Malachite green (MG) from aqueous medium. Optimization of experimental conditions to find the maximum dye adsorption is studied in detail. Results revealed that the maximum adsorption of dye occurs within 30 minutes of the experiment. The SEM images exhibited a change in its surface morphology upon the adsorption of dye. The adsorption isotherm of MG clearly fits the Langmuir and Freundlich equations and follows pseudo-second-order rate equation. Freundlich isotherm exhibited the maximum adsorption capacity of 115.1 mg/g when compared to Langmuir isotherm. 98.65% of dye degradation is observed at room temperature for an adsorbent dosage of 0.2g per 30 ml initial dye concentration. Current analysis and its comparison studies with other reports on adsorbents concludes that, Chitosan/Cellulose blend can be considered as a cost effective choice for the removal of MG.

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“…As a very recent approach, Sadiq and coworkers developed chitosan beads incorporating with deep eutectic solvents (DES) which are prepared from choline chloride with urea or glycerol for removing organic dye [79]. The DES is paid attention to possess biocompatibility and low toxicity regardless of similar characteristics with ionic liquids [79,85,86].…”

Section: Other Types Of Absorbent Media Composed Of Chitosanmentioning

confidence: 99%

Innovative Separation Technology Utilizing Marine Bioresources: Multifaceted Development of a Chitosan-Based System Leading to Environmentally-Friendly Processes

Kashima¹,

Takahashi²,

Nakayama³

et al. 2021

Chitin and Chitosan - Physicochemical Properties and Industrial Applications [Working Title]

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Chitosan, known as a most typical marine biological polymer, has a fruitful capability of biocompatible gel formation. Attempts of chitosan have been made to develop it from the multifaceted viewpoint of separation technology. The physicochemical properties of chitosan containing a lot of hydroxyl groups and reactive amino groups help to build the characteristic polymer networks. The deacetylation degree of chitosan is found as the most influential factor to regulate properties of chitosan hydrogels. The antibacterial activity of the chitosan membrane is one of its notable abilities because of its practical application. The chitosan, its derivatives, and the complex formation with other substances has been used for applications in filtration and membrane separation processes. Adsorption processes based on chitosan have been also developed widely. Moreover, complex of chitosan gel helps to immobilize adsorbent particles. The chitosan membrane immobilizing Prussian-Blue for cesium ion removal from the aqueous phase is one of the leading cases. To elaborate the adsorption behavior on the chitosan immobilizing adsorbent, the isothermal equilibrium and mass transfer characteristics can be discussed. The adsorption process using chitosan-based membranes in combination with filtration in a flow process is advantageous compared with the batch process. More advanced studies of chitosan aerogel and chitosan nanofibers have been proceeded recently, especially for adapting to water purification and air filtration.

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Adsorption and desorption of malachite green by using chitosan-deep eutectic solvents beads

Cited by 77 publications

References 36 publications

Malachite green removal using ionic flocculation

Malachite green removal using ionic flocculation

A Green Approach to the Removal of Malachite Green Dye from Aqueous Medium Using Chitosan/Cellulose blend

Innovative Separation Technology Utilizing Marine Bioresources: Multifaceted Development of a Chitosan-Based System Leading to Environmentally-Friendly Processes

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