The Use of Bilberry Leaves (Vaccinium myrtillus L.) as an Efficient Adsorbent for Cationic Dye Removal from Aqueous Solutions

Moșoarcă, Giannin; Vancea, Cosmin; Popa, Simona; Dan, Mircea Laurențiu; Boran, Sorina

doi:10.3390/polym14050978

Cited by 24 publications

(13 citation statements)

References 95 publications

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“…As a result, the Kocho's removal of MB cationic dye was most effective at pH > pHpzc where the functional groups get protonated and less MB dye are adsorbed by the biosorbent. The approximately close values were reported for other biosorbents:5.6 for Raspberry (Rubus idaeus) leaves powder [49] 5.77 for Syringa vulgaris leaves powder [50], 6.3 for papaya leaf powder and Typha angustifolia leaves powder [51].…”

Section: Effect Of Initial Phsupporting

confidence: 79%

Efficient Removal of Methylene Blue Dye from Aqueous Solution Using a New Biosorbent Derived from Enset (Ensete Ventricosum)

Gebeyehu

Tasew

Kabtamu

2023

Preprint

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In this study, kocho powder, a possible low-cost biosorbent for the efficient removal of MB dye from wastewater is prepared from pseudostem and corm of Enset (Ensete ventricosum). Characteristics of kocho powder were examined by using SEM, TGA, XRD and FTIR to study the surface morphology, functional group and other physico-chemical properties of this newly developed biosorbent. Biosorption experiments were carried out in batch mode to investigate the effects of dosage (0.025–0.2g), pH (2–10), initial concentration of MB (10 to 100 mg/L) and contact time (10 to 120 min).The highest removal efficiency of methylene blue dye (94.2%) was recorded at optimum experimental conditions of biosorbent dosage 0.1g, MB concentration 50 mgL− 1, pH 8, contact time 50min and agitation rate of 200rpm at room. Following the removal study, it was determined that the pseudo-second order kinetics (R2 = 0.997) and Langmuir isothermal (R2 = 0.996) models may well describe the MB dye biosorption process. Furthermore, this newly developed biosorbent was fairly recyclable up to five cycles without significant loss of re-adsorption efficiency (around 9.6% loss) between 1st and 5th cycle. Thus, the findings of this study revealed that a new kocho biomass derived from Ensete Ventricosum can be used as a promising low-cost, environmentally friendly, and efficient biosorbent for the rapid removal of MB from aqueous solutions.

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Section: Effect Of Initial Phsupporting

confidence: 79%

Efficient Removal of Methylene Blue Dye from Aqueous Solution Using a New Biosorbent Derived from Enset (Ensete Ventricosum)

Gebeyehu

Tasew

Kabtamu

2023

Preprint

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“…When 20 kJ mol −1 < Δ H ° < 80 kJ mol −1 , electrostatic contact plays a substantial role in the physical purification process. The adsorption mechanism is primarily chemical when Δ H ° > 80 kJ mol −1 40 . The material used in this experiment to purify MB and MO possesses a Δ H ° value that is less than 80 kJ mol −1 , suggesting that physisorption is at play, albeit a chemical reaction may assist the process to a very small degree.…”

Section: Resultsmentioning

confidence: 90%

Thermally treated biomass of pine (Pinus kesiya) leaves for effective removal of organic dyes from aqueous solutions

Huynh,

Nguyen,

Duong

et al. 2023

J of Chemical Tech & Biotech

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BackgroundMethyl Orange (MO) and methylene Blue (MB) from aqueous solutions were effectively removed by thermally treated pine leaves (Pinus kesiya). The influences of solution pH (2‐10), contact time (10‐240 min), and initial dye concentration (100‐500 mg.L‐1) were found to be significant in the process of dye removal. The experimental data was fitted with four isotherm models (Langmuir, Freundlich, Sips, and Temkin) and four kinetic models (Elovich, pseudo‐first‐order, pseudo‐second‐order, and intra‐particle diffusion). Some mechanisms of the MO and MB adsorption onto this material were proposed and discussed.ResultsAmong the four isotherm models examined, the experimental data gave the best fit with the Langmuir model. The maximum Langmuir adsorption capacities were 136.99 mg.g‐1 for MO and 140.85 mg.g‐1 for MB. Kinetic studies illustrated that the biosorption of both dyes onto pine leaves aligns with Elovich, pseudo‐first‐order, pseudo‐second‐order, and intra‐particle diffusion models. Thermodynamic studies showed that the uptake of the two dyes was regulated by physisorption, and it was spontaneous and endothermic in nature. Electrostatic interactions, as well as other non‐covalent forces such as π–π interactions and hydrogen bonds, were mechanisms of dyes adsorption on heat treated pine leaf biomass.ConclusionThe present study suggests that pine leaves (Pinus kesiya) could be a potential biosorbent for wastewater treatment due to their high availability and production, resulting in several environmental advantages.This article is protected by copyright. All rights reserved.

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“…Another possible use is as a foaming agent to produce ceramic or glass foams. During the combustion process, a large amount of gas results, which makes it an ideal sporogenous precursor for this type of materials [ 61 , 62 ].…”

Section: Resultsmentioning

confidence: 99%

A Novel High-Efficiency Natural Biosorbent Material Obtained from Sour Cherry (Prunus cerasus) Leaf Biomass for Cationic Dyes Adsorption

et al. 2023

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The present study aimed to investigate the potential of a new lignocellulosic biosorbent material derived from mature leaves of sour cherry (Prunus cerasus L.) for removing methylene blue and crystal violet dyes from aqueous solutions. The material was first characterized using several specific techniques (SEM, FTIR, color analysis). Then, the adsorption process mechanism was investigated through studies related to adsorption equilibrium, kinetics, and thermodynamics. A desorption study was also performed. Results showed that the Sips isotherm provided the best fit for the adsorption process of both dyes, with a maximum adsorption capacity of 168.6 (mg g−1) for methylene blue and 524.1 (mg g−1) for crystal violet, outperforming the capacity of other similar adsorbents. The contact time needed to reach equilibrium was 40 min for both studied dyes. The Elovich equation is the most suitable model for describing the adsorption of methylene blue, while the general order model is better suited for the adsorption of crystal violet dye. Thermodynamic analyses revealed the adsorption process to be spontaneous, favorable, and exothermic, with physical adsorption involved as the primary mechanism. The obtained results suggest that sour cherry leaves powder can be a highly efficient, eco-friendly, and cost-effective adsorbent for removing methylene blue and crystal violet dyes from aqueous solutions.

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The Use of Bilberry Leaves (Vaccinium myrtillus L.) as an Efficient Adsorbent for Cationic Dye Removal from Aqueous Solutions

Cited by 24 publications

References 95 publications

Efficient Removal of Methylene Blue Dye from Aqueous Solution Using a New Biosorbent Derived from Enset (Ensete Ventricosum)

Efficient Removal of Methylene Blue Dye from Aqueous Solution Using a New Biosorbent Derived from Enset (Ensete Ventricosum)

Thermally treated biomass of pine (Pinus kesiya) leaves for effective removal of organic dyes from aqueous solutions

A Novel High-Efficiency Natural Biosorbent Material Obtained from Sour Cherry (Prunus cerasus) Leaf Biomass for Cationic Dyes Adsorption

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