Development of a biosponge based on Luffa cylindrica and crosslinked chitosan for Allura red AC adsorption

Schio, Rejiane R.; Gonçalves, Janaína Oliveira; Mallmann, Evandro Stoffels; Pinto, Diana; Dotto, Guilherme Luiz

doi:10.1016/j.ijbiomac.2021.10.096

Cited by 16 publications

(3 citation statements)

References 35 publications

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“…Agricultural waste has been used to very less extent for this purpose. The only reported wastes (to the best of our knowledge) as adsorbents either directly or after pyrolysis for removing AR are pinewood, arabica coffee residues, coconut shell, corncob, guargum, peanut hull waste, sawdust, pecan nut shells, luffa cylindrica and bael patra [42–51] …”

Section: Introductionmentioning

confidence: 99%

“…The only reported wastes (to the best of our knowledge) as adsorbents either directly or after pyrolysis for removing AR are pinewood, arabica coffee residues, coconut shell, corncob, guargum, peanut hull waste, sawdust, pecan nut shells, luffa cylindrica and bael patra. [42][43][44][45][46][47][48][49][50][51] Limited number of studies reported in this area was the impetus behind this study, which motivated us to attempt the potential of other varieties of agricultural wastes lying around us for treating wastewater in order to make it free from toxic dyes, like AR. This study aimed at investigating the efficiency of watermelon peels (WMP) waste before and after pyrolysis for AR removal from wastewater.…”

Section: Introductionmentioning

confidence: 99%

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A Sustainable and Cost‐Effective Bioadsorbent for the Removal of Allura Red from Contaminated Water

Kaushik,

Bhogal,

Singhal

et al. 2024

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Food grade dyes pose severe health hazards when consumed in excessive amounts or enter body via contaminated water. Despite its harmful effects, Allura Red (AR) is very less explored dye for its removal, especially using agricultural/fruit waste. This study presents efficient removal of an important and unsafe food grade dye, AR via adsorption. Waste watermelon peel waste has been used for the first time for treatmenting wastewater contaminated with AR. Waste was converted to two types of adsorbents, with and without subjecting it to pyrolysis. Both the adsorbents were characterized for functionality and crystallinity and used for conducting adsorption studies. Removal of dye was evaluated by intrinsic strategy of monitoring the model solutions under pre‐ and post‐adsorption conditions. Removal percentage of dye was determined by calculating its initial (Co) and final (Cf) concentrations in solution using the formula (see Eq. (1)). Various reaction parameters important for adsorption, viz. pH, adsorbent dose, residence time, reaction temperature and particle size were optimized. Results indicate that ~80 % and >92 % dye could be removed using 0.5 g/L adsorbent before and after pyrolysis respectively in 3.5 h from its 2 ppm concentration in modelled water.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Sustainable and Cost‐Effective Bioadsorbent for the Removal of Allura Red from Contaminated Water

Kaushik,

Bhogal,

Singhal

et al. 2024

ChemistrySelect

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show abstract

“…It has moderate toxicity and has been described that short-term inhalation of this compound might cause irritation to the eyes, respiratory tract and skin and might be a human carcinogen. However, if ECH fully reacts with BC, it becomes inoffensive (Schio et al 2021). To perform the BC crosslinking with ECH, aqueous solutions containing different amounts of ECH (0.5%, 1%, 2%, 5% and 10% weight percentage with respect to the hydrated BC membrane) were prepared by magnetic stirring at room temperature.…”

Section: Epichlorohydrin Crosslinkingmentioning

confidence: 99%