Study of the Ziziphus Joazeiro Peel for Indigo Blue Adsorption.

Ribeiro, Joselito Nardy

doi:10.21474/ijar01/8617

Cited by 3 publications

(9 citation statements)

References 7 publications

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“…Raymundo et al [6] also observed similar results, which were achieved when sugar cane bagasse was used to adsorb Congo Red. Ribeiro et al [24] also noticed that adsorption of Indigo Blue by Ziziphus joazeiro peel showed desorption events as mechanical agitation time increased.…”

Section: Mechanical Agitation Timementioning

confidence: 96%

“…They demonstrated that 2.0 g of this adsor-bent were able to remove 90% and 89% of Congo Red (25 mg•L −1 ) and Indigo Blue (1000 mg•L −1 ), respectively. Ribeiro et al [24] demonstrated that 1.5 g of Zizyphus joazeiro Mart peel removed approximately 84% of Indigo Blue (1000 mg•L −1 ) from aqueous medium.…”

Section: Vermicompost Massmentioning

confidence: 99%

“…Adsorption isotherm linearization for IB in the presence of vermicompost. Sodium carboxymethyl cellulose and chitosan Indigo Blue 50.00 [17] Zizyphusjoazeiro peel Indigo Blue 50.00 [24] Wood sawdust powder Congo Red 0.52 [25] Corncob-to-xylose residue (CCXR) Congo Red 751.00 [29] Natural clay Indigo Blue 57.00 [30] Activated carbon Indigo Blue 53.00 [30] Algerian kaolin Congo Red 6.53 [31] Natural zeolites modified with N,N-dimethyl dehydroabietylamine oxide Congo Red 69.94 [32] Coconut residual fiber Congo Red 128.94 [33] Red mud Congo Red 4.05 [34] Polysaccharide of Carica papaya seeds Congo Red 319.08 [35] The dimensionless constant (R L ) is another thermodynamic parameter to favoring the adsorption process. In this case, 0 < R L ≤ 1 indicates favorable adsorptions, while R L > 1 can be attributed to unfavorable adsorptions (Esmaeili and Beni 2015).…”

Section: Dye Concentration Influence Adsorption Isotherms and Derivations Of Thermodynamic Parametersmentioning

confidence: 99%

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Vermicompost for Indigo Blue and Congo Red Removal

Ribeiro¹,

Ribeiro²,

Silva³

et al. 2021

JWARP

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The data obtained through this work revealed that the vermicompost is a natural adsorbent able to removal two textile dyes from an aqueous medium. The values of maximum adsorption capacity for congo red (23.25 mg/g) and indigo blue (40.39 mg/g) obtained from the Mathematical Langmuir Model reveal it. The conditions of adsorbent mass, stirring time between adsorbent and dyes were optimized. Additionally, the values of Gibbs free energy demonstrate the predominance of physical interaction between both dyes and vermicompost. Through Langmuir constant values, it was possible to identify similar affinities between both dyes and vermicompost. The value of dimensionless constant indicates favorable adsorptions process. Finally, through physicochemical analysis from scanning electron microscopy and Fourier Transform Infra-Red Spectroscopy, the characteristics of vermicompost were verified revealing essential aspects to efficient adsorbent.

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Section: Mechanical Agitation Timementioning

confidence: 96%

Section: Vermicompost Massmentioning

confidence: 99%

Section: Dye Concentration Influence Adsorption Isotherms and Derivations Of Thermodynamic Parametersmentioning

confidence: 99%

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Vermicompost for Indigo Blue and Congo Red Removal

Ribeiro¹,

Ribeiro²,

Silva³

et al. 2021

JWARP

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“…Taking into consideration the generated problems by the dyes, technologies that can remove it from water are extremely important. Several of those techniques have been studied, such as biodegradation (Manimekalai and Swaminathan, 2000), photodegradation (Giraldo and Restrepo, 2004), ozone treatment (Kunz et al, 1999) and the adsorption process (Carneiro et al, 2019;Ribeiro et al, 2019). The latter method being the focus of this work.…”

Section: Introductionmentioning

confidence: 99%

“…Adsorption processes, using natural adsorbents, provide satisfactory results when used for the removal of different type of dyes (Brito et al, 2010). Some studies have already been performed using natural adsorbents, as in the case of the use of Brazil nut husk for the removal of methylene blue and indigo carmine dyes (Brito et al, 2010), in the use of sugar-cane bagasse for the treatment of water containing congo red (Raymundo et al, 2010), in the use of vermicompost for congo red and indigo blue dyes removal , in the use of Ziziphus Joazeiro pell for indigo blue adsorption (Ribeiro et al, 2019), and others (Gupta, 2009). Within this scenario would be black jurema bark powder (BJBP) a new alternative for dyes effluents treatment?…”

Section: Introductionmentioning

confidence: 99%

Black jurema bark powder as new alternative material for treatment of water containing two toxic dyes / Emprego do pó da casca de jurema preta como uma nova alternativa para o tratamento de água contendo dois corantes tóxicos

Ribeiro¹,

Ribeiro²,

Dybwad³

et al. 2021

BJDV

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Black jurema bark powder (BJBP) (Mimosa hostilis Benth) was studied for the removal of textile dyes Methylene Blue (MB) and Indigo Blue (IB) in water. The chemical and physical analysis of BJBP showed a heterogeneous surface with chemical groups capable to interact with MB and IB. The experiments were optimized for use of 1g of BJBP and stirring time of 3 minutes for IB, and 0.5g of BJBP and stirring time of 2 minutes for MB. The maximum adsorptive capacities for IB (115.21 mg/g) and MB (3.50 mg/g), obtained through the Langmuir Mathematical Model, were favorable for the use of BJBP as an adsorbent in water containing both dyes. The results obtained in this work suggest BJBP as a new alternative for the removal of IB and MB in aqueous medium. Besides, this work stimulates new studies to evaluate the BJBP adsorption capacity for other chemical pollutants.

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A Novel, Dual-Initiator, Continuous-Suspension Grafting Strategy for the Preparation of PP-g-AA-MAH Fibers to Remove of Indigo from Wastewater

Xie,

Fang,

Lian

et al. 2024

Polymers

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The indigo dye found in wastewater from printing and dyeing processes is potentially carcinogenic, teratogenic, and mutagenic, making it a serious threat to the health of animals, plants, and humans. Motivated by the growing need to remove indigo from wastewater, this study prepared novel fiber absorbents using melt-blow polypropylene (PP) melt as a matrix, as well as acrylic acid (AA) and maleic anhydride (MAH) as functional monomers. The modification conditions were studied to optimize the double-initiation, continuous-suspension grafting process, and then functional fibers were prepared by melt-blown spinning the modified PP. The results showed that the optimum modification conditions were as follows: a 3.5 wt% interfacial agent, 8 mg/L of dispersant, 80% monomer content, a 0.8 mass ratio of AA to MAH, a 1000 r/min stir speed, 3.5 wt% initiator DBPH grafting at 130 °C for 3 h, and 1 wt% initiator BPO grafting at 90 °C for 2 h. The highest grafting rate of the PP-g-AA-MAH was 31.2%, and the infrared spectrum and nuclear magnetic resonance spectroscopic analysis showed that AA and MAH were successfully grafted onto PP fiber. This modification strategy also made the fibers more hydrophilic. The adsorption capacity of the PP-g-AA-MAH fibers was highly dependent on pH, and the highest indigo adsorption capacity was 110.43 mg/g at pH 7. The fiber adsorption capacity for indigo increased rapidly before plateauing with increasing time or indigo concentration, and the experimental data were well described in a pseudo-second-order kinetic model and a Langmuir isothermal adsorption model. Most impressively, the modified fiber adsorption capacity for indigo remained as high as 91.22 mg/g after eight regeneration and reuse cycles. In summary, the PP-g-AA-MAH fibers, with excellent adsorption-desorption characteristics, could be readily regenerated and reused, and they are a promising material for the removal of indigo from wastewater.

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Study of the Ziziphus Joazeiro Peel for Indigo Blue Adsorption.

Cited by 3 publications

References 7 publications

Vermicompost for Indigo Blue and Congo Red Removal

Vermicompost for Indigo Blue and Congo Red Removal

Black jurema bark powder as new alternative material for treatment of water containing two toxic dyes / Emprego do pó da casca de jurema preta como uma nova alternativa para o tratamento de água contendo dois corantes tóxicos

A Novel, Dual-Initiator, Continuous-Suspension Grafting Strategy for the Preparation of PP-g-AA-MAH Fibers to Remove of Indigo from Wastewater

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