Mahogany fruit shell: a new low-cost adsorbent for removal of methylene blue dye from aqueous solutions

Sartape, Ashish S.; Patil, S. A.; Patil, Sandip K.; Salunkhe, Suresh T.; Kolekar, Sanjay S.

doi:10.1080/19443994.2013.839404

Cited by 22 publications

(8 citation statements)

References 37 publications

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“…The sharp and strong peak at 1,592 cm −1 of MB due to the presence of C = C vibration and N-H bending was merged with a peak at 1,599 cm −1 of membrane and showed a broader peak at 1,598 cm −1 in the spectrum of the dye-adsorbed membrane [ 21 ]. Like the two peaks at 1,443 cm −1 and 1,488 cm −1 , which indicates C = N stretching, the peaks at 1,220 cm −1 and 1,250 cm −1 of C = C stretching in aromatic rings of MB are merged and form broad peaks at 1,416 cm −1 and 1,232 cm −1 , respectively, in the spectrum of the dye-adsorbed membrane [ 18 ]. Finally, the peaks corresponding to the C-O stretching of the onion membrane and the C-S bending of the MB rings appeared at 1,008 cm −1 and 954 cm −1 , respectively [ 22 ].…”

Section: Resultsmentioning

confidence: 99%

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Onion membrane: an efficient adsorbent for decoloring of wastewater

Saber-Samandari

Heydaripour

2015

J Environ Health Sci Engineer

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BackgroundRecently, researchers have tried to design synthetic materials by replicating natural materials as an adsorbent for removing various types of environmental pollutants, which have reached to the risky levels in nature for many countries in the world. In this research, the potential of onion membrane obtained from intermediate of onion shells for adsorption of methylene blue (MB) as a model cationic dye was exhibited.MethodsBefore and after adsorption, the membrane was characterized by Fourier transform infrared spectroscopy (FTIR) and optical and scanning electron microscopy in order to prove its dye adsorption capability. The various experimental conditions affecting dye adsorption were explored to achieve maximum adsorption capacity.ResultsThe dye adsorption capacity of the membrane was found to be 1.055 g.g−1 with 84.45% efficiency after one hour and 1.202 g.g−1 with 96.20% efficiency after eight hours in contact with the dye solution (0.3 g.L−1). Moreover, the kinetic, thermodynamic and adsorption isotherm models were employed to described the MB adsorption processes. The results show that the data for adsorption of MB onto the membrane fitted well with the Freundlich isotherm and pseudo-second-order kinetic models. In addition, the MB adsorption from room temperature to ~50°C is spontaneous and thermodynamically favorable.ConclusionsEvidently, the high efficiency and fast removal of methylene blue using onion membrane suggest the synthesis of polymer-based membranes with similar physical and chemical properties of onion membrane as a valuable and promising wastewater decoloring agents in water treatment.

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Section: Resultsmentioning

confidence: 99%

“…Furthermore, the pH at point of zero charge (pHzpc), which shows the point that the acidic or basic functional groups do no contribute to the pH of the solution, was determined using the standard technique [ 18 ]. For this purpose, 50 mL of 0.01 mol.L −1 NaCl solution was placed in a 250 ml flask.…”

Section: Methodsmentioning

confidence: 99%

Onion membrane: an efficient adsorbent for decoloring of wastewater

Saber-Samandari

Heydaripour

2015

J Environ Health Sci Engineer

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“…The cationic dyes are more toxic compared with anionic dyes (Etim et al 2016). The presence of MB in the water sources causes to damage the eyes of humans and animals, burning nausea, vomiting, excessive sweating, mental disorder and methemoglobinemia (Sartape et al 2015). Therefore, the treatment of effluent containing MB is necessary due to its harmful effects on human health and environment.…”

Section: Introductionmentioning

confidence: 99%

Methylene blue removal using prepared activated carbon from grape wood wastes: adsorption process analysis and modeling

Mousavi

Shahbazi

Mahmoudi

et al. 2021

Water Quality Research Journal

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An adsorption study has been conducted for activated carbon obtained from grape wood wastes to assess their capability to remove methylene blue (MB) from the aqueous solutions. The properties of prepared activated carbon were characterized using FTIR, BET and SEM analyses. The effects of independent variables such as initial concentration of MB (100–500 mg L−1), initial pH of solution (3–11), adsorbent dosage (0.25–12.25 g L−1) and contact time (10–90 min) on the MB adsorption have been optimized using response surface methodology. The highest MB removal efficiency was 98% when pH, MB and adsorbent dosage were 11, 100 mg L−1 and 12.25 g L−1, respectively. The experimental data have been tested using Langmuir and Freundlich isotherm models, and the achieved data were fully fitted with the Langmuir model (R2 = 0.99), which indicates the monolayer adsorption. The adsorption kinetics well followed by the pseudo-second-order model with R2 of 0.99. This prepared activated carbon as a low-cost and eco-friendly adsorbent can be used widely for water and wastewater treatment.

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“…Table 8 summarized the parameters specified for these two models. The experimental data in Table 8 showed that MB adsorption was found to fit the pseudo-second order kinetic (Sartape et al 2015). It is observed that the values of k 1 and k 2 decreased with an increase in initial concentration.…”

Section: Surface Chemistrymentioning

confidence: 88%

Preparation of Alpinia galangaStem Based Activated Carbon via Single-step Microwave Irradiation for Cationic Dye Removal

Ahammad¹,

Yusop²,

Din³

et al. 2021

JSM

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The focal point of this study is to synthesis Alpinia galanga Stem-based activated carbon (AGSAC) by using single-step microwave irradiation and testing it for the removal of cationic dye, methylene blue (MB) from aqueous solution. AGSAC was prepared under the flow of carbon dioxide (CO2) for the gasification effect. The factors of contact time (from 0 to 24 h) and initial concentration (25-300 mg/L) on the adsorption performance of AGSAC were studied. With the aid of response surface methodology (RSM) via face-centered composite design (FCD), optimum preparation conditions for AGSAC were found to be 400 W for radiation power and 4 min for activation time, respectively, which resulted in 95.67% of MB dye removal. The optimized AGSAC has a Bruneaur-Emmet-Teller (BET) surface area of 172.19 m2/g, mesopore surface area of 103.32 m2/g, a total pore volume of 0.1077 cm3/g, and fixed carbon content of 47.63%. The pore diameter of AGSAC was found to be a mesoporous type with a pore diameter of 2.50 nm. Freundlich isotherm and pseudo-second-order were found as the best-fitted model for MB adsorption equilibrium and kinetic respectively onto prepared AGSAC. Intraparticle diffusion was found to be the rate-limiting step.

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Mahogany fruit shell: a new low-cost adsorbent for removal of methylene blue dye from aqueous solutions

Cited by 22 publications

References 37 publications

Onion membrane: an efficient adsorbent for decoloring of wastewater

Onion membrane: an efficient adsorbent for decoloring of wastewater

Methylene blue removal using prepared activated carbon from grape wood wastes: adsorption process analysis and modeling

Preparation of Alpinia galangaStem Based Activated Carbon via Single-step Microwave Irradiation for Cationic Dye Removal

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