Isothermal study of Congo Red dye biosorptive removal from water by Solanum  tuberosum and Pisum sativum peels in economical way

Rehman, Rabia; Manzoor, Irfan; Mitu, Liviu

doi:10.4314/bcse.v32i2.3

Cited by 25 publications

(8 citation statements)

References 27 publications

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“…Finally, the comparison of the maximum dye adsorption capacity ( q m ) of this study with other agriculture wastes for DR28 dye removals is demonstrated in Table 5 . The q m values of SBB, SBBT, SBBM, SBBA, and SBBZ were higher than cabbage (2.31 mg/g) and rice husk (1.28–2.04 mg/g) 15 , 45 , and the q m value of SBBM had higher than prior studies in Table 5 expect the studies of Rehman et al 46 , Ibrahim and Sani 47 , and Masoudian et al 48 .…”

Section: Resultsmentioning

confidence: 58%

Cationic oxides and dioxides of modified sugarcane bagasse beads with applications as low-cost sorbents for direct red 28 dye

Praipipat,

Ngamsurach,

Libsittikul

et al. 2024

Sci Rep

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The direct red 28 (DR28) dye contamination in wastewater blocks the transmission of light into the water body resulting in the inability to photosynthesize by aquatic life. In addition, it is difficult to break down and persist in the environment, and it is also harmful to aquatic life and water quality because of its aromatic structure. Thus, wastewater contaminated with dyes is required to treat before releasing into the water body. Sugarcane bagasse beads (SBB), sugarcane bagasse modified with titanium dioxide beads (SBBT), sugarcane bagasse modified with magnesium oxide beads (SBBM), sugarcane bagasse modified with aluminum oxide beads (SBBA), and sugarcane bagasse modified with zinc oxide beads (SBBZ) for DR28 dye removal in aqueous solution, and they were characterized with several techniques of BET, FESEM-FIB, EDX, FT-IR, and the point of zero charges (pHpzc). Their DR28 dye removal efficiencies were examined through batch tests, adsorption isotherms, and kinetics. SBBM had the highest specific surface area and pore volume, whereas its pore size was the smallest among other materials. The surfaces of SBB, SBBM, SBBT, and SBBA were scaly sheet surfaces with an irregular shape, whereas SBBZ was a coarse surface. Oxygen, carbon, calcium, chloride, sodium, O–H, C–H, C=O, C=C, and C–O–C were found in all materials. The pHpzc of SBB, SBBT, SBBM, SBBA, and SBBZ were 6.57, 7.31, 10.11, 7.25, and 7.77. All materials could adsorb DR28 dye at 50 mg/L by more than 81%, and SBBM had the highest DR28 dye removal efficiency of 94.27%. Langmuir model was an appropriate model for SBB, whereas Freundlich model was a suitable model for other materials. A pseudo-second-order kinetic model well described their adsorption mechanisms. Their adsorptions of the DR28 dye were endothermic and spontaneous. Therefore, they were potential materials for adsorbing DR28 dye, especially SBBM.

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Section: Resultsmentioning

confidence: 58%

Cationic oxides and dioxides of modified sugarcane bagasse beads with applications as low-cost sorbents for direct red 28 dye

Praipipat,

Ngamsurach,

Libsittikul

et al. 2024

Sci Rep

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“…where C (mg/L) is the equilibrium concentration of the adsorbates, q stand for the adsorbates amount adsorbed per unit adsorbent weight while (mg/g) and (L/mg) are Langmuir constants related to maximum adsorption capacity and rate of adsorption, respectively, K F (mg 1−n /g L n ) is the adsorption capacity when the adsorbate equilibrium concentration equal to 1.00 mg/L [32] with n related to adsorption intensity [33]. In general, n > 1 suggests that adsorbate is favourably adsorbed on the adsorbent [34]. The higher the n value the stronger the adsorption intensity.…”

Section: Adsorption Isothermmentioning

confidence: 99%

Borassus aethiopum shell-based activated carbon as efficient adsorbent for carbofuran

Garba¹,

Tanimu²,

Zango³

2019

Bull. Chem. Soc. Eth.

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Carbofuran, a pesticide applied in farmlands, often gets washed away into water bodies due to heavy rainfall and renders the water toxic. In this study, Borassus aethiopum shells-based activated carbon (BAS-AC) was prepared using CO2 and KOH as physical and chemical activating agents, respectively, which was employed as an adsorbent for the removal of carbofuran from an aqueous medium. The adsorbent was produced using the impregnation ratio of 3.28, activation temperature of 800 o C and activation time of 90 min. Textural properties and available functional groups in the adsorbent were determined using N2 adsorption-desorption isotherm and Fourier transform infrared spectroscopy, respectively. The removal efficiency was performed after optimizing the adsorption parameters and kinetics of the adsorption process was examined using a batch system. The surface area, average pore diameter and adsorption capacity of the BAS-AC were obtained as 632 m 2 /g, 2.97 nm and 160 mg/g, respectively. Equilibrium adsorption isotherms were fitted better by the Langmuir model than the Temkin and Freundlich models. The adsorption kinetics follow the pseudo-second-order model and the adsorbent diffusion mechanism was further studied using the intraparticle diffusion model.

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“…Several low cost biosorbents such as tea waste, fava bean peel [9], rice husk [19], banana fibre [20], coconut fibre [20], sawdust [20], barley bran [21], enset midrib leaf [21], eucalyptus sheathina bark [22], solanum tuberosum [23], pisum sativum peels [23] and rice straw [24] have been reported in literature for the removal of dyes. However, to the best of our knowledge the use of kocho for the remediation of methylene blue (cationic model dye) present in wastewater has not been reported yet.…”

Section: Introductionmentioning

confidence: 99%

Efficient removal of methylene blue dye from aqueous solution using a new biosorbent derived from Ensete ventricosum (Enset)

Tewabe Gebeyehu,

Manaye Kabtamu,

Alehegne Tasew

2023

Bull. Chem. Soc. Eth.

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In this study, kocho was prepared from pseudostem and corm of Ensete ventricosum (enset).The behaviors of kocho were examined by using FESEM, TGA, XRD and FTIR spectroscopy. The biosorption potential of kocho, a possible low-cost new biosorbent for the efficient removal of MB dye from wastewater was investigated. Biosorption experiments were carried out in batch mode to study the effects of biosorbent dosages (0.025-0.2 g), pH (2–10), initial concentrations 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. Following the removal study, it was determined that the pseudo-second order kinetics (R2 = 0.997) and Langmuir isothermal (R 2= 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 biosorbent 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. KEY WORDS: Kocho, Ensete ventricosum, Biosorption, Methylene blue, Kinetics, Isothermal Bull. Chem. Soc. Ethiop. 2024, 38(1), 69-84. DOI: https://dx.doi.org/10.4314/bcse.v38i1.6

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Isothermal study of Congo Red dye biosorptive removal from water by Solanum tuberosum and Pisum sativum peels in economical way

Cited by 25 publications

References 27 publications

Cationic oxides and dioxides of modified sugarcane bagasse beads with applications as low-cost sorbents for direct red 28 dye

Cationic oxides and dioxides of modified sugarcane bagasse beads with applications as low-cost sorbents for direct red 28 dye

Borassus aethiopum shell-based activated carbon as efficient adsorbent for carbofuran

Efficient removal of methylene blue dye from aqueous solution using a new biosorbent derived from Ensete ventricosum (Enset)

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