Development of activated carbon from<i>Nerium oleander</i>flower and their rapid adsorption of direct and reactive dyes

Durairaj, Kaliannan; Senthilkumar, P.; Velmurugan, Palanivel; Divyabharathi, Subramaniyan; Kavitha, D.

doi:10.1080/15435075.2019.1598419

Cited by 27 publications

(6 citation statements)

References 57 publications

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“…Adsorption appears to be an economical, effective and eco-friendly technology for the elimination of reactive dyes from effluents when compared with other methods due to its numerous advantages, which include low cost, ease of design at a large scale, facile manipulations, resistance to contaminants, higher efficiency rate, and an aptitude to cope with dilute as well as concentrated dye effluents [17]. Generally, a wide range of adsorbents obtained from variety of sources such as clay [18], nanoparticles [19], nanotubes [20], agricultural-and forest-derived wastes [21,22], activated carbon [23], graphene composites [24], zeolites [25], chitosan [26], and a number of polymeric adsorbents [27] have been employed for the removal of reactive dyes. The high surface area, good adsorption capacity, mechanical and chemical stability of activated carbon (AC) ranks it as a promising substitute for existing dye removal techniques.…”

Section: Introductionmentioning

confidence: 99%

Phosphoric Acid Activated Carbon from Melia azedarach Waste Sawdust for Adsorptive Removal of Reactive Orange 16: Equilibrium Modelling and Thermodynamic Analysis

et al. 2020

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Waste wood biomass as precursor for manufacturing activated carbon (AC) can provide a solution to ever increasing global water quality concerns. In our current work, Melia azedarach derived phosphoric acid-treated AC (MA-AC400) was manufactured at a laboratory scale. This novel MA-AC400 was tested for RO16 dye removal performance as a function of contact time, adsorbent dosage, pH, temperature and initial dye concentration in a batch scale arrangement. MA-AC400 was characterized via scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, dynamic light scattering (DLS) and fluorescence spectroscopy. MA-AC400 is characterized as mesoporous with BET surface area of 293.13 m2 g−1 and average pore width of 20.33 Å. pHPZC and Boehm titration confirm the acidic surface charges with dominance of phenolic functional groups. The average DLS particle size of MA-AC400 was found in the narrow range of 0.12 to 0.30 µm and this polydispersity was confirmed with multiple excitation fluorescence wavelengths. MA-AC400 showed equilibrium adsorption efficiency of 97.8% for RO16 dye at its initial concentration of 30 mg L−1 and adsorbent dose of 1 g L−1. Thermodynamic study endorsed the spontaneous, favorable, irreversible and exothermic process for RO16 adsorption onto MA-AC400. Equilibrium adsorption data was better explained by Langmuir with high goodness of fit (R2, 0.9964) and this fitness was endorsed with lower error functions. The kinetics data was found well fitted to pseudo-second order (PSO), and intra-particle diffusion kinetic models. Increasing diffusion constant values confirm the intraparticle diffusion at higher RO16 initial concentration and reverse was true for PSO chemisorption kinetics. MA-AC400 exhibited low desorption with studied eluents and its cost was calculated to be $8.36/kg.

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Section: Introductionmentioning

confidence: 99%

Phosphoric Acid Activated Carbon from Melia azedarach Waste Sawdust for Adsorptive Removal of Reactive Orange 16: Equilibrium Modelling and Thermodynamic Analysis

et al. 2020

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“…All leaves with a midrib are of "leathery" texture and normally come from the stem in three pairs [45]. The plant grows terminal flower heads, normally pink or white, but there are 400 cultivars, which display various floral colors: deep to pale pink, lilac, carmine, lard, salmon, apricot, copper, orange and white [46].…”

Section: Nerium Oleandermentioning

confidence: 99%

“…Where the species is found in the wild, it takes place along watercourses, gravel sites and humid ravines. It is widely grown, particularly in warm temperate and subtropical areas, in parks, gardens and on roadsides [46].…”

Section: Nerium Oleandermentioning

confidence: 99%

Various Natural Dyes Using Plant Palette in Coloration of Natural Fabrics

Hamdy

Hassabo

2021

J.Text.color. pol. sci.

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T HE use of natural dyes in textile coloring has shown a growing interest. Many countries have developed stringent environmental rules to respond to hazardous and allergic synthetic coloring reactions. Since there is a growing need for these ecologically friendly wool yarns, cotton, and silk, there are enormous regions for novel color sources. In the following content, several innovative natural dye sources are explored. New coloring features such as quickness and natural dyeing were also applied.Natural dyes form plants are become more popular in textile coloring. This is because the poisonous and allergic synthetic tinting responses have enforced strict environmental rules in many nations. During this review using of natural dyes extracted from plants and its application on textile materials were investigated.

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“…Generally, the traditional porous adsorbents are bentonite [12], zeolite [13], clay [14], biochar [15] and activated carbon [16]. However, these porous adsorbents have some drawbacks such as complicated synthesis process, low dyes adsorption capacity and poor selectivity [8,17]. Therefore, it is necessary to develop new types of adsorbents with high adsorption capacity for dyes in industrial wastewater.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of novel bi-heteroatom functionalized hyper-crosslinked porous polymers with efficient adsorption methylene blue and methyl orange

Fu,

He,

Guo

et al. 2024

Preprint

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In this work, we designed and synthesized two novel bi-heteroatom functionalized hyper-crosslinked porous polymers (HCP-CT and HCP-CF) through a simple one-step Friedel-Crafts alkylation reaction. The resulted polymers N/S bi-heteroatom functionalized polymer HCP-CT and N/O bi-heteroatom functionalized polymer HCP-CF both have good adsorption properties for organic dyes such as methyl orange (MO) and methylene blue (MB) in aqueous solution due to its rich pore structure, high specific surface area and rich-heteroatoms of pore surface. It is worth mentioned that the maximum adsorption capacity (qmax) of cationic dye MB by the polymer HCP-CT at room temperature was reached up to 1571.46 mg/g, which is much higher than that of most reported porous materials. Furthermore, the adsorption capacity of HCP-CT for the cationic dye MB was more than seven times that of the anionic dye MO (qmax=212.77 mg/g). Also, the polymer HCP-CF for the MB adsorption capacity (qmax=352.11 mg/g) was more than twice higher than that of anionic dye MO (qmax=131.75 mg/g). The above trends may be because of the stronger electrostatic interaction between the negatively charged N-S/O bi-heteroatom of HCP-CT and HCP-CF with the cationic dye MB than that of MO. In addition, the removal percentage of polymers HCP-CT and HCP-CF still remained above 80% after five adsorption-desorption cycles. Hence, this work provided a convenient synthetic route to develop a novel hyper-crosslinked polymer with high capacity for the entrapment of dyes from aqueous solution.

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Development of activated carbon fromNerium oleanderflower and their rapid adsorption of direct and reactive dyes

Cited by 27 publications

References 57 publications

Phosphoric Acid Activated Carbon from Melia azedarach Waste Sawdust for Adsorptive Removal of Reactive Orange 16: Equilibrium Modelling and Thermodynamic Analysis

Phosphoric Acid Activated Carbon from Melia azedarach Waste Sawdust for Adsorptive Removal of Reactive Orange 16: Equilibrium Modelling and Thermodynamic Analysis

Various Natural Dyes Using Plant Palette in Coloration of Natural Fabrics

Facile synthesis of novel bi-heteroatom functionalized hyper-crosslinked porous polymers with efficient adsorption methylene blue and methyl orange

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