Adsorption of cationic methylene blue dye using microwave-assisted activated carbon derived from acacia wood: Optimization and batch studies

Yusop, Mohamad Firdaus Mohamad; Ahmad, Mohd Azmier; Rosli, Nur Ayshah; Manaf, Mohd Edeerozey Abd

doi:10.1016/j.arabjc.2021.103122

Cited by 102 publications

(39 citation statements)

References 74 publications

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“…(2021): Clay deposits of El Haria formation have been used for the removal of sodium leuco‐vat dye. The maximum adsorption capacity was found to be 15.45 mg/g, and the thermodynamic parameters showed an endothermic and physical nature. 38) Yusop et al., and Manaf (2021): Acacia wood‐based activated carbon has been used for the removal of methylene blue. The maximum adsorption capacity was found to be 81.20 mg/g and follows a pseudosecond order kinetics model, while thermodynamic analysis shows exothermicity in nature. 39) Han et al.…”

Section: Dye and Its Toxin Effectsmentioning

confidence: 99%

Application of low‐cost, eco‐friendly adsorbents for the removal of dye contaminants from wastewater: Current developments and adsorption technology

Laskar

Kumar

2022

Environmental Quality Mgmt

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The review study focuses on dye contamination of wastewater and adsorption approaches to achieve the lowest dye waste in wastewater discharge. The dyes require extensive use in several applications suited for commercial consumption, but the dyes are serious pollutants when dumped directly into water bodies without sufficient treatment. The review study briefly discusses the current methodologies carried out for the adsorption mechanism, the relevance of adsorption, and adsorption factors for the examined system. Langmuir and Freundlich isotherm models and a pseudosecond order kinetic model were found to properly represent dye uptake. To fully appreciate the molecular interactions between the adsorbent and adsorbate, additional study into theoretical dye adsorption modeling is necessary. As a low-cost adsorbent for dye treatment and the manufacturing of activated carbon, agricultural waste material in both its natural and modified forms is explored in this review article for its dye adsorption capabilities. The adsorption behavior and mechanism may be better understood by employing operational parameters, kinetics, and isotherm models, as described in this article. The initial concentration, pH, and temperature all play a function in the adsorption process and are discussed in depth.

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Section: Dye and Its Toxin Effectsmentioning

confidence: 99%

Application of low‐cost, eco‐friendly adsorbents for the removal of dye contaminants from wastewater: Current developments and adsorption technology

Laskar

Kumar

2022

Environmental Quality Mgmt

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“…e adsorption kinetics and intraparticle diffusion were studied in 200 ml solution at a fixed value of pH 9, adsorbent dose of 0.5 g, and mixing speed of 125 rpm. e experiments were carried out at room temperature and at different contact times (25,50,100,200,250, and 300 min) in a 250 mL Erlenmeyer flask [62]. In the solid-solution interface, the adsorbate removal rate is expressed by adsorption kinetics.…”

Section: Adsorption Kinetics and Intraparticlementioning

confidence: 99%

Synthesis Optimization of Activated Carbon Driven from Scrap Tire for Adsorbent Yield and Methylene Blue Removal under Response Surface Methodology

Kassahun

Tibebu

Tadesse³

et al. 2022

Advances in Materials Science and Engineering

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This study aimed to investigate the synthesis optimization of activated carbon-driven scrap tires for adsorbent yield and methylene blue removal under response surface methodology. The scrap tire sample was activated by KOH using ethanol as a solvent. The optimized activated carbon was characterized using proximate analysis, scanning electron microscope (SEM), X-ray diffraction (XRD), and Brunauer Emmett Teller (BET) method. The activated carbon was demineralized using 5 M NaOH + 98% H2SO4 (1 : 1) as a solvent to enhance the surface area. Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich models were used to check the adsorption isotherm. The adsorption kinetics was checked using pseudo-first-order and pseudo-second-order models. Weber-Morris intraparticle diffusion model was used to study the diffusion mechanism. The optimum impregnation ratio, impregnation time, and carbonization temperature for synthesizing the activated carbon were 2 g/g, 12 hr, and 700°C, respectively. The moisture content, volatile matter, ash content, fixed carbon, and bulk density of the activated carbon were 6.13%, 9.42%, 5.34%, 79.11%, and 0.89 mg/L, respectively. The surface area of optimized activated carbon was enhanced by demineralization process and increased from 53 m2/g to 260.26 m2/g. Temkin adsorption isotherm with R2 values of 0.982 and pseudo-second-order adsorption kinetics with R2 values of 0.999 best fits the experimental data respectively. Intraparticle diffusion was not the only rate-controlling step for both optimized and demineralized (NaOH + H2SO4) activated carbon. It can be concluded that the optimized and demineralized activated carbon derived from scrap tires has a promising potential to be used as a low-cost adsorbent in developing countries including Ethiopia. However, further investigation needs to be conducted before scaling up at industrial level.

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“…Besides being simple in design, another supremacy of AC is its versatility in treating wide ranges of pollutants, namely, dyes [4][5][6], heavy metals [7], pesticides [8], antibiotic [9], and many more. For the past two decades, researchers are more interested to use agrowaste as AC precursor such as acacia sawdust [4] pomegranate peel [10], peanut shell [11], and Alpinia galanga stem [12]. This is because agrowaste can be obtained in a large quantity and they can be activated using a microwave oven.…”

Section: Introductionmentioning

confidence: 99%

Single‐Stage Optimized Microwave‐Induced Activated Carbon from Coconut Shell for Cadmium Adsorption

Yusop¹,

Jaya²,

Din³

et al. 2022

Chem Eng & Technol

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The toxicity of heavy metals motivated the synthesis of coconut shell‐based activated carbon (CSAC) through single‐stage microwave irradiation technique to scavenge cadmium ions (Cd(II)). Response surface methodology revealed the optimum radiation power and radiation time which translated into 85.45 % of Cd(II) removal and 41.78 % of CSAC's yield. Isotherm and kinetic data were best described by Freundlich and pseudo‐first‐order (PFO) models, respectively. The changes of enthalpy, entropy, and activation energy were determined as well as the reduction of CSAC yield and Cd(II) removal after six regeneration cycles.

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Adsorption of cationic methylene blue dye using microwave-assisted activated carbon derived from acacia wood: Optimization and batch studies

Cited by 102 publications

References 74 publications

Application of low‐cost, eco‐friendly adsorbents for the removal of dye contaminants from wastewater: Current developments and adsorption technology

Application of low‐cost, eco‐friendly adsorbents for the removal of dye contaminants from wastewater: Current developments and adsorption technology

Synthesis Optimization of Activated Carbon Driven from Scrap Tire for Adsorbent Yield and Methylene Blue Removal under Response Surface Methodology

Single‐Stage Optimized Microwave‐Induced Activated Carbon from Coconut Shell for Cadmium Adsorption

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