Anionic dye removal from aqueous solutions using modified zeolite: Adsorption kinetics and isotherm studies

Alver, Erol; Metin, Ayşegül Ülkü

doi:10.1016/j.cej.2012.06.038

Cited by 399 publications

(154 citation statements)

References 53 publications

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“…In addition, they also proved that heterogeneous photo-Fenton reaction was successful in the UVA region of solar radiation. Alver and Metin (2012) investigated the use of modified zeolite with hexamethylenediamine (HMDA) for the adsorption of reactive dyes by batch adsorption experiments through Fenton-like process. The effects of pH, temperature, sorbent dosage, and initial dye concentrations were investigated.…”

Section: Zeolite-based Catalystsmentioning

confidence: 99%

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Buthiyappan

Raman

Daud

2016

Reviews in Chemical Engineering

236

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AbstractIn the past few years, there have been many researches on the use of different types of homogenous catalyst for the degradation of textile wastewater in conventional advanced oxidation processes (AOPs). However, homogenous AOPs suffer from few limitations, including large consumption of chemicals, acidic pH, high cost of hydrogen peroxide, generation of iron sludge, and necessity of post-treatment. Therefore, recently, there have been more researches that focus on improving the performance of conventional AOPs using heterogeneous catalysts such as titanium dioxide, nanomaterials, metal oxides, zeolite, hematite, goethite, magnetite, and activated carbon (AC). Besides, different supports such as AC that have been incorporated with transition metals and clays have been proven to have excellent catalytic activity in AOPs. This paper presents a comprehensive review of advances and prospects of catalytic AOPs for the decontamination of a wide range of synthetic and real textile wastewater. This review provides an up-to-date critical review of the information on the degradation of various textile dyes by a wide range of heterogeneous catalysts and adsorbents. The future challenges of AOPs, including chemical consumption, toxicity assessment, reactor design, and limitation of catalysts, are discussed in this paper. In addition, this paper also discusses the presence of ions, generation of by-products, and industrial applications of AOPs. Special emphasis is given to recent studies and large-scale combination of AOPs for wastewater treatment. This review paper concludes that more studies are needed for the kinetics, reactor design, and modeling of hybrid AOPs and the production of their corresponding intermediate products and secondary pollutants. A better economic model should also be developed to predict the cost of AOPs, as the treatment cost varies with dyes and textile effluents.

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Section: Zeolite-based Catalystsmentioning

confidence: 99%

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Buthiyappan

Raman

Daud

2016

Reviews in Chemical Engineering

236

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“…The most frequently studied materials are activated charcoal [6], cellulose [7], silica [8], clay [9], zeolites [10], chitosan [11], several lignocellulosic materials, agricultural waste, such as eucalyptus [12], wheat straw [12], sugarcane bagasse [13], peanut husk [14], bamboo [15], corn grains [16] among others. The cellulose stands out for being the most abundant polysaccharide in nature, and it arouses attention specially due to its low cost [1].…”

Section: Introductionmentioning

confidence: 99%

Sorption of the anionic reactive red RB dye in cellulose: Assessment of kinetic, thermodynamic, and equilibrium data

et al. 2015

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Abstract:The cellulose matrix was characterized by FTIR, 13 C NMR, XRD, TG, SEM and applied in the removal of the reactive red RB dye in an aqueous medium, with a capacity of adsorption at a pH of 2.0, and an adsorption equilibrium time which was reached at around 200 mins. The kinetic study for the system followed the Elovich model. The adsorption isotherms for the system at temperatures of 35°C, 45°C, and 55°C were adjusted to the Langmuir, Freundlich, Sips, and Redlich-Peterson non-linear models, with a capacity of adsorption for adsorbent of 5.97 mg g , respectively. The adsorption occurred by electrostatic interactions and it was favorable and spontaneous, with the influence of temperature.

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“…To remove these toxic and stable dyes, numerous researchers have made great efforts to explore various absorbers in the past few decades, including active carbon, 1 fly ash, 2,3 zeolite, 4,5 montmorillonite, 6,7 graphene, 8,9 and agricultural wastes. [10][11][12] However, all these methods have limitations due to the complex regeneration process and high cost.…”

Section: Introductionmentioning

confidence: 99%

Calcined Mg-Fe layered double hydroxide as an absorber for the removal of methyl orange

Peng

Dai

et al. 2015

AIP Advances

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In this work, methyl orange (MO) was effectively removed from aqueous solution with the calcined product of hydrothermal synthesized Mg/Fe layered double hydroxide (Mg/Fe-LDH). The structure, composition, morphology and textural properties of the Mg/Fe-LDH before and after adsorption were characterized by X-ray diffraction, Fourier transformation infrared spectroscopy, transmission electron microscopy, nitrogen adsorption apparatus and X-ray photoelectron spectroscopy. It was confirmed that MO had been absorbed by calcined Mg/Fe-LDH which had strong interactions with MO. The adsorption of MO onto the Mg/Fe-LDH was systematically investigated by batch tests. The adsorption capacity of the Mg/Fe-LDH toward MO was found to be 194.9 mg • g−1. Adsorption kinetics and isotherm studies revealed that the adsorption of MO onto Mg/Fe-LDH was a spontaneous and endothermic process. These results indicate that Mg/Fe-LDH is a promising material for the removal of MO.

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Anionic dye removal from aqueous solutions using modified zeolite: Adsorption kinetics and isotherm studies

Cited by 399 publications

References 53 publications

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Recent advances and prospects of catalytic advanced oxidation process in treating textile effluents

Sorption of the anionic reactive red RB dye in cellulose: Assessment of kinetic, thermodynamic, and equilibrium data

Calcined Mg-Fe layered double hydroxide as an absorber for the removal of methyl orange

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