Adsorptive potentials of lemongrass leaf for methylene blue dye removal

Ahmad, Mohd Azmier; Ahmed, Nur‘Adilah Binti; Adegoke, Kayode Adesina; Bello, Olugbenga Solomon

doi:10.1016/j.cdc.2020.100578

Cited by 47 publications

(6 citation statements)

References 79 publications

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“…Elimination of dyes from wastewater can be accomplished by various adsorbents that were used in adsorption techniques like TLAC/Chitosan [17], bentonite-alginate composite [18], cellulose-based adsorbent (CGS) [19], coffee husks [20], polypyrrole-based KOH-activated carbon [21], acid-modified eucalyptus leaves [22]. Commercially activated carbon is applied for dye adsorption from wastewater, but these adsorbents are highly expensive, limiting its commercial application [23][24][25]. The suitable adsorbent can be described by low cost, high removal capacity and high renewability [26].…”

Section: Introductionmentioning

confidence: 99%

Effective adsorption of crystal violet from aqueous solutions with effective adsorbent: equilibrium, mechanism studies and modeling analysis

Al-Shehri¹,

Almudaifer

Alorabi

et al. 2021

Environmental Pollutants and Bioavailability

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In this work, NaOH-activated Aerva javanica leaf (NAJL) powder was successfully developed as a cost-effective adsorbent for removal of crystal violet (CV) from an aqueous environment. The prepared adsorbent was characterized using FTIR, SEM, and their surface area was determined by BET technique. Different parameters affecting the adsorption of CV dye such as pH solution, adsorbent dose, equilibrium time, initial CV concentration, and temperature were investigated. The results revealed that the best-optimized values were found as pH-9, dose-20 mg, time-30 min, temperature-25 °C . The adsorption experimental data exhibited excellently fitted well to the nonlinear Langmuir isotherm and Pseudo-first-order kinetic models. The maximum monolayer adsorption capacity of CV dye was 315.2 mg/g. The experimental parameters of thermodynamic analysis exhibited that the CV dye adsorption onto NAJL powder was exothermic and spontaneous. Electrostatic attraction, π-π interactions, and Hydrogen bonding were the mechanism behind the adsorption of CV dye.

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Section: Introductionmentioning

confidence: 99%

Effective adsorption of crystal violet from aqueous solutions with effective adsorbent: equilibrium, mechanism studies and modeling analysis

Al-Shehri¹,

Almudaifer

Alorabi

et al. 2021

Environmental Pollutants and Bioavailability

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“…These pores are expected to enhance the adsorption process as a result of their porosity. This indicates that the arginine has contributed to the widening and formation of pores on the HL surface, which is one of the properties of a good adsorbent that will be efficient in the removal of dyes (Hsini et al 2020a), thus confirming the ability of Arg@HL in removing CV dye under consideration due to the availability of porous of the adsorbent (Ahmad et al 2021). After the adsorption process, the surface of Arg@HL Figure 2(c), was covered with CV dye, and the surface of Arg@HL became smooth in a short time.…”

Section: Surface Morphologymentioning

confidence: 59%

Synthesis and characterization of arginine-doped heliotrope leaves with high clean-up capacity for crystal violet dye from aqueous media

Brini

Hsini

Naciri

et al. 2021

Water Science and Technology

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Novel an arginine-modified Heliotrope leaf (Arg@HL) was used as adsorbent for the crystal violet (CV) dye adsorption in a batch process. The physicochemical and morphological composition of Arg@HL were characterized by field-emission-scanning-electron-microscopy (FE-SEM), Fourier transforms infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC). The experiments were carried out to investigate the factors that influence the dye uptake by the adsorbent, such as the contact time under agitation, adsorbent amount, initial dye concentration, temperature and pH of dye solution. The optimum conditions of adsorption were found on the batch scale as followed: CV concentration of 20 mg·L−1, an amount of 0.75 g·L−1 of the adsorbent, 90 min contact time, 6 pH and 25 °C temperature for Arg@HL. The results confirmed a second-order model explaining the dye crystal violet's adsorption's kinetics by Arg-Heliotrope leaves. The Langmuir model effectively defines the adsorption isotherms. The results revealed that the Arg@HL has the potential to be used as a low-cost adsorbent for the removal of CV dye from aqueous solutions.

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“…Since the dye in the water need to be removed to prevent many living things, there are many methods have been discovered to remove it from water bodies such as adsorption, flocculation, liquid membrane separation, precipitation, coagulation, oxidation, reverse osmosis, etc. [4]. There are so many types of dyes used in the industry and it can be known as acid dye, cationic or basic dye, direct dye, azoic dye and many more [5].…”

Section: Introductionmentioning

confidence: 99%

Removal of methylene blue (MB) from polluted water by using eco-friendly dragon fruit peels and pineapple crown leaves

Bakar,

Jamil,

Muhammad Ali

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Dye is a widely used product in many industries that produce coloured goods. The by-product discharge after the colouring process finishes will contribute to dye pollution in wastewater thus polluting the water bodies nearby the areas of discharge. To treat the pollution due to dye like methylene blue (MB), adsorption is the most common treatment where natural adsorbents like dragon fruit peels (DFP) and pineapple crown leaves (PCL) have the potential to do so. The physical characterization of the DFP, and PCL was then analysed by scanning electron microscope. Batch adsorption experiment was adopted where the hybrid adsorbents of DFP and PCL were recorded successfully removed 84 to 92 percent of MB at 140 minutes. The removal was determined by using two different parameters which were varied dosage and contact hour. Adsorption isotherm models such as Langmuir and Freundlich Isotherm were being used along with kinetic analysis, Pseudo-First and Pseudo Second order in this study. At the end of this study shows that natural adsorbents such as DFP and PCL can be one of the alternatives to treat water pollution due to effluents from industry in the wastewater at the treatment plan.

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Adsorptive potentials of lemongrass leaf for methylene blue dye removal

Cited by 47 publications

References 79 publications

Effective adsorption of crystal violet from aqueous solutions with effective adsorbent: equilibrium, mechanism studies and modeling analysis

Effective adsorption of crystal violet from aqueous solutions with effective adsorbent: equilibrium, mechanism studies and modeling analysis

Synthesis and characterization of arginine-doped heliotrope leaves with high clean-up capacity for crystal violet dye from aqueous media

Removal of methylene blue (MB) from polluted water by using eco-friendly dragon fruit peels and pineapple crown leaves

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