Preparation of Zeolite 4A for Adsorptive Removal of Methylene Blue: Optimization, Kinetics, Isotherm, and Mechanism Study

Belachew, Neway; Hinsene, Hirpo

doi:10.1007/s12633-020-00938-9

Cited by 35 publications

(16 citation statements)

References 62 publications

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“…MB adsorption onto nanosheet MFI zeolite has been reported to reach a remarkable maximum adsorption capacity of about 195 mg g −1 under a C 0 of 250 mg L −1 , thanks to an optimization of the test conditions by adjusting the dye solution pH to 10 [ 20 ]. The influence of pH value and adsorption test conditions were also investigated for zeolite 4A applied for the same purposes, obtaining a predicted maximum adsorption capacity of about 44.35 mg g −1 under a C 0 of 50 mg L −1 [ 19 ]. Zeolite 13X synthesis was optimized for MB removal purposes, achieving a maximum adsorption capacity of about 144.56 mg g −1 under a C 0 of 50 mg L −1 [ 35 ].…”

Section: Resultsmentioning

confidence: 99%

“…Polymer-based foams or aerogels based on cellulose [ 10 , 11 ], alginate [ 12 ], and chitosan (CS) [ 13 , 14 , 15 , 16 ] have been extensively explored for water remediation purposes. High surface area nanoparticles [ 17 , 18 ] and micro/meso-porous particles, such as zeolites and metal–organic frameworks [ 4 , 19 , 20 , 21 , 22 , 23 ] have also been widely investigated as effective adsorbents. However, their reuse is hindered by the difficult recovery from polluted solutions, that can often lead to secondary pollution.…”

Section: Introductionmentioning

confidence: 99%

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Chitosan/Zeolite Composite Aerogels for a Fast and Effective Removal of Both Anionic and Cationic Dyes from Water

et al. 2021

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Organic dyes are extensively used in many industrial sectors, and their uncontrolled disposal into wastewaters raises serious concerns for environmental and human health. Due to the large variety of such pollutants, an effective remediation strategy should be characterized by a broad-spectrum efficacy. A promising strategy is represented by the combination of different adsorbent materials with complementary functionalities to develop composite materials that are expected to remove different contaminants. In the present work, a broad-spectrum adsorbent was developed by embedding zeolite 13X powder (ZX) in a chitosan (CS) aerogel (1:1 by weight). The CS–ZX composite adsorbent removes both anionic (indigo carmine, IC) and cationic (methylene blue, MB) dyes effectively, with a maximum uptake capacity of 221 mg/g and 108 mg/g, respectively. In addition, the adsorption kinetics are rather fast, with equilibrium conditions attained in less than 2 h. The composite exhibits good mechanical properties in both dry and wet state, which enables its handling for reusability purposes. In this regard, preliminary tests show that the full restoration of the IC removal ability over three adsorption–desorption cycles is achieved using a 0.1 M NaOH aqueous solution, while a 1 M NaCl aqueous solution allows one to preserve >60% of the MB removal ability.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Chitosan/Zeolite Composite Aerogels for a Fast and Effective Removal of Both Anionic and Cationic Dyes from Water

et al. 2021

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“…The elements of the dyes vary with respect to their chromosphere groups and substituents, thus affecting characteristics such as polarity and solubility. The most widely used methods for removing dyes from wastewater include coagulation [ 6 ], ozonation [ 7 ], chlorination [ 8 ], electrochemical processes [ 9 ], chemical precipitation [ 10 ], membrane methods [ 11 ], biological treatments [ 12 ] and adsorption [ 13 ]. The removal of MB dye from wastewater is extremely important, due to the serious environmental damage that it can cause [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

An Investigation of a Natural Biosorbent for Removing Methylene Blue Dye from Aqueous Solution

Alhogbi

Balawi

2023

Molecules

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T he current study reports the use of zeolite prepared from a kaolin composite via physical mixing with different ratios from fiber of palm tree (Zeo-FPT) as a sustainable solid sorbent for the removal of methylene blue (MB) dye from aqueous solutions. The prepared biosorbent was fully characterized using XRD, TGA, SEM, and FTIR. The impacts of various analytical parameters, for example, contact time, dosage, MB dye concentration, and the pH of the solution, on the dye adsorption process were determined. After a contact time of 40 min, the capacity to remove MB dye was 0.438 mg g−1 at a Zeo-FPT composition ratio of 1F:1Z. At pH 8, Zeo-FPT (1F:1Z) had a removal efficiency of 87% at a sorbent dosage of 0.5 g for a concentration of MB dye in an aqueous phase of 10 mg L−1. The experimental data were also analyzed using the kinetic and adsorption isotherm models. The retention process fitted well with the pseudo-second-order model (R2 0.998), where the Qe,calc of 0.353 mg g−1 was in acceptable agreement with the Qe,exp of 0.438 mg g−1. The data also fitted well with the Freundlich isotherm model, as indicated by the correlation coefficient value (R2 0.969). The Zeo-FPT attained a high percentage (99%) in the removal of MB dye from environmental water samples (tap water, bottled water, and well water). Thus, it can be concluded that the proposed zeolite composite with fiber of palm tree (Zeo-FPT) is a suitable, environmentally friendly, and low-cost adsorbent for removing dyes from wastewater.

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“…have been observed. Mesoporous aluminosilicates possess inadequate hydrothermal firmness and low acidity potency compared to zeolites [ 29 , 30 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review on Zeolite Chemistry for Catalytic Conversion of Biomass/Waste into Green Fuels

et al. 2022

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Numerous attempts have been made to produce new materials and technology for renewable energy and environmental improvements in response to global sustainable solutions stemming from fast industrial expansion and population growth. Zeolites are a group of crystalline materials having molecularly ordered micropore arrangements. Over the past few years, progress in zeolites has been observed in transforming biomass and waste into fuels. To ensure effective transition of fossil energy carriers into chemicals and fuels, zeolite catalysts play a key role; however, their function in biomass usage is more obscure. Herein, the effectiveness of zeolites has been discussed in the context of biomass transformation into valuable products. Established zeolites emphasise conversion of lignocellulosic materials into green fuels. Lewis acidic zeolites employ transition of carbohydrates into significant chemical production. Zeolites utilise several procedures, such as catalytic pyrolysis, hydrothermal liquefaction, and hydro-pyrolysis, to convert biomass and lignocelluloses. Zeolites exhibit distinctive features and encounter significant obstacles, such as mesoporosity, pore interconnectivity, and stability of zeolites in the liquid phase. In order to complete these transformations successfully, it is necessary to have a thorough understanding of the chemistry of zeolites. Hence, further examination of the technical difficulties associated with catalytic transformation in zeolites will be required. This review article highlights the reaction pathways for biomass conversion using zeolites, their challenges, and their potential utilisation. Future recommendations for zeolite-based biomass conversion are also presented.

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Preparation of Zeolite 4A for Adsorptive Removal of Methylene Blue: Optimization, Kinetics, Isotherm, and Mechanism Study

Cited by 35 publications

References 62 publications

Chitosan/Zeolite Composite Aerogels for a Fast and Effective Removal of Both Anionic and Cationic Dyes from Water

Chitosan/Zeolite Composite Aerogels for a Fast and Effective Removal of Both Anionic and Cationic Dyes from Water

An Investigation of a Natural Biosorbent for Removing Methylene Blue Dye from Aqueous Solution

A Comprehensive Review on Zeolite Chemistry for Catalytic Conversion of Biomass/Waste into Green Fuels

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