Banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability

Misran, Erni; Bani, Okta; Situmeang, E M; Purba, Adi Syahputra

doi:10.1016/j.aej.2021.07.022

Cited by 110 publications

(24 citation statements)

References 56 publications

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“…There are many adsorbents have been studied such as activated carbon (Hameed et al, 2007), graphene oxide (Zhang et al, 2011), carbon nanotubes (Li et al, 2013), bentonite (Oussalah and Boukerroui, 2020), and diatomite (Du and Danh, 2021). Furthermore, a numerical study on using low-cost and regeneration adsorbents have been investigated (Abdul et al, 2021;Alorabi et al, 2021;Hussain et al, 2022;Misran et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Biochar Derived from Sesbania sesban Plant as a Potential Low-Cost Adsorbent for Removal of Methylene Blue

Hiep¹,

Thu²,

Quyen³

et al. 2022

Environ. Nat. Resour. J.

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In this study, biochar made from the Sesbania sesban plant, under slow pyrolysis at 300°C was used to adsorb methylene blue (MB) in aqueous solution. The biochar properties were clarified by diverse analytical methods such as FTIR, SEM, and BET. The results indicated that the surface of biochar was relatively smooth, had porous texture, and stacked evenly. In addition, the biochar had a large specific surface area of 561.8 m2/g and the pHpzc value was 6.9. The effect of adsorbent dosage, initial pH, contact time, and concentration of dye solution on biochar were investigated. The optimum conditions for MB adsorption were found at the MB concentration of 50 mg/L, initial pH of 11, biochar mass of 0.6 mg, and contact time of 30 min. Under these optimal conditions, MB dye removal efficiency was above 90%. Adsorption isotherm data were fitted with the Langmuir isotherm model (R2=0.897) suggesting the adsorption was monolayer, and its maximum adsorption capacity was about 6.6 mg/g. The adsorption kinetic models showed that the linear pseudo-second-order by R2=0.999 was well fitted. The results indicated the enormous potential of Sesbania sesban plant to produce biochar as a low-cost and rather high-effective adsorbent for dye removal from wastewater as well as water quality improvement.

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Section: Introductionmentioning

confidence: 99%

Biochar Derived from Sesbania sesban Plant as a Potential Low-Cost Adsorbent for Removal of Methylene Blue

Hiep¹,

Thu²,

Quyen³

et al. 2022

Environ. Nat. Resour. J.

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“…Although MB dye decolorization was previously reported to take place efficiently via adsorption using natural or synthesized material, 5–8 yet our work presents a time and location dependent removal of MB that can be tailored based on the intended removal purpose, weather its complete decolorization, recovery of MB dye. Spatiotemporal study allows for diverse applications.…”

Section: Discussionmentioning

confidence: 98%

“… 3 There are different ways to remove methylene blue from aqueous media, these methods include removal using advanced oxidative processes, filtration, and reverse osmosis but in recent years, adsorption using different material has proven very effective in dye removal since the use of adsorptive material is usually effective, reusable and in many cases cheap. Adsorptive material such as nanocomposite, 4 coffee waste, 5 alginate hydrogel beads substantiated by graphene oxide, 6 banana stem based activated carbon, 7 natural clay 8 are among the examples of adsorbent material that are effective in dye removal. But one of the interesting materials that can be successfully used in dye removal is calcium carbonate (CaCO 3 ) microspheres.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal based response for methylene blue removal using surface modified calcium carbonate microspheres coated with Bacillus sp.

2023

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“…This study findings demonstrate that the adsorption process is strongly influenced by the dye's initial concentration in solution; for example, in the case of (GA) and (OS400), MB removal percentages decrease as initial concentrations increase. ie for lower concentrations, the R % of dye uptake was higher than the higher concentrations, the outcomes can be compared to those of other similar studies [72,73] . Because there are more active sites on the adsorbent surface than there are dye molecules at lower concentrations, the interactions between dye molecules and the adsorbent are higher.…”

Section: Effect Of Initial Concentrationmentioning

confidence: 89%

Synthesis of Activated Carbon Composited With Egyptian Black Sand for Enhanced Adsorption Performance toward Methylene Blue Dye

ElKholy

Yahia²,

El-Nawawy

et al. 2022

Preprint

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The present study reports the feasibility of the synthesis of a novel porous activated carbon (OS400) composite adsorbent prepared from olive stone and impregnated with garnet (GA) types of black sand minerals. The Activated Carbon/ garnet composite (OSMG) was applied for the sorption of macromolecular organic dye. The structural characteristics of the synthesized composite were evaluated by Brunauer–Emmett–Teller (BET), N2 adsorption/desorption measurements, Scanning Electron Microscopy equipped with Energy Dispersive X-ray spectroscopy (SEM-EDX), X-ray diffraction (XRD), and a Fourier transform infrared spectrometer (FT-IR). The specific surface area of (GA), (OS400), and (OSMG) were 5.157 m2.g− 1, 1489.598 m2.g− 1, and 546.392 m2.g− 1, respectively. The high specific surface area and effective active centers of the new composite promoted the adsorption of methylene blue (MB). The experiments were carried out under various conditions such as contact time, initial concentration of adsorbate, adsorbent dosage, pH, and temperatures. The equilibrium adsorption data were evaluated using the Langmuir and Freundlich isotherm models. The results display that, the adsorption isotherm had an excellent fitting to the Freundlich model. Furthermore, the data obtained from adsorption kinetic models showed that the pseudo-second-order model more agreeing for describing the (MB) adsorption reaction, suggesting a chemisorption mechanism. The values of thermodynamic parameters indicate that methylene blue dye adsorption onto the (GA) adsorbents through an endothermic reaction, while exothermic sorption of MB onto (OS400) and (OSMG), with a non-spontaneous process.

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Banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability

Cited by 110 publications

References 56 publications

Biochar Derived from Sesbania sesban Plant as a Potential Low-Cost Adsorbent for Removal of Methylene Blue

Biochar Derived from Sesbania sesban Plant as a Potential Low-Cost Adsorbent for Removal of Methylene Blue

Spatiotemporal based response for methylene blue removal using surface modified calcium carbonate microspheres coated with Bacillus sp.

Synthesis of Activated Carbon Composited With Egyptian Black Sand for Enhanced Adsorption Performance toward Methylene Blue Dye

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