Treatment of anionic dye aqueous solution using Ti, HDTMA and Al/Fe pillared bentonite. Essay to regenerate the adsorbent

Ayari, Fadhila; Manai, Ghada; Khelifi, Selma; Trabelsi‐Ayadi, Malika

doi:10.1016/j.jscs.2018.08.001

Cited by 28 publications

(9 citation statements)

References 45 publications

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“…So, the ion species is stable against the differences in solution pH, and that results in limited leaching of iron ( Herney-Ramirez et al, 2010 ). There are various reports of the use of pillared clays for the degradation of dyes ( Li et al, 2015 , Ayari et al, 2019 ), pharmacologically important compounds ( Hurtado et al, 2019 , Khankhasaeva et al, 2017 ), and phenolic compounds ( Hadjltaief et al, 2015 , Catrinescu et al, 2012 ). However, the applications of pillared clay-based systems in more complex matrices, especially those with heavy organic load, are rare in literature.…”

Section: Various Fe-based Materials Related To the Fenton Processmentioning

confidence: 99%

Heterogeneous Fenton catalysts: A review of recent advances

Thomas

Dionysiou

Pillai

2021

Journal of Hazardous Materials

495

162

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Heterogeneous Fenton catalysts are emerging as excellent systems for applications related to water purification. In this review, recent trends in the synthesis and application of heterogeneous Fenton catalysts for the abatement of organic pollutants and disinfection of microorganisms are discussed. It is noted that as the complexity of cell wall increases, the resistance level towards various disinfectants increases and it requires either harsh conditions or longer exposure time for the complete disinfection. In case of viruses, enveloped viruses ( e.g. SARS-CoV-2) are found to be more susceptible to disinfectants than the non-enveloped viruses. The introduction of plasmonic systems with the Fenton catalysts broaden the visible light absorption efficiency of the hybrid material, and incorporation of semiconductor material improves the rate of regeneration of Fe(II) from Fe(III). A special emphasis is given to the use of Fenton catalysts for antibacterial applications. Composite materials of magnetite and ferrites remain a champion in this area because of their easy separation and reuse, owing to their magnetic properties. Iron minerals supported on clay materials, perovskites, carbon materials, zeolites and metal-organic frameworks (MOFs) dramatically increase the catalytic degradation rate of contaminants by providing high surface area, good mechanical stability, and improved electron transfer. Moreover, insights to the zero-valent iron and its capacity to remove a wide range of organic pollutants, heavy metals and bacterial contamination are also discussed. Real world applications and the role of natural organic matter are summarised. Parameter optimisation (e.g. light source, dosage of catalyst, concentration of H 2 O 2 etc. ), sustainable models for the reusability or recyclability of the catalyst and the theoretical understanding and mechanistic aspects of the photo-Fenton process are also explained. Additionally, this review summarises the opportunities and future directions of research in the heterogeneous Fenton catalysis.

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Section: Various Fe-based Materials Related To the Fenton Processmentioning

confidence: 99%

Heterogeneous Fenton catalysts: A review of recent advances

Thomas

Dionysiou

Pillai

2021

Journal of Hazardous Materials

495

162

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“…The regression coefficient indicates that the adsorption of MO into BHec-40 has a strong correlation with the Langmuir isotherm. 1,55–58 In addition, the lowest RSS and χ c 2 error values are shown in the Sips and Langmuir isotherm, respectively.…”

Section: Resultsmentioning

confidence: 92%

“…The regression coefficient indicates that the adsorption of MO into BHec-40 has a strong correlation with the Langmuir isotherm. 1,[55][56][57][58] In addition, the lowest RSS and c c 2 error values are shown in the Sips and Langmuir isotherm, respectively. Furthermore, to show that the MO adsorption process into BHec-40 is benecial under the investigated conditions (30 °C), it can be determined based on the value of the equilibrium parameter (R L ) on the Langmuir isotherm.…”

Section: Batch Sorption Studymentioning

confidence: 86%

Hectorite-CTAB–alginate composite beads for water treatment: kinetic, isothermal and thermodynamic studies

et al. 2023

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“…industries, releases a large amount of colored substances into wastewater streams. [1][2][3][4] Wastewater effluents containing dyes cause major problems in the environment due to their color and their breakdown products. 5 The toxic nature of dyes may cause allergies, skin irritation and even are carcinogenic.…”

Section: Introductionmentioning

confidence: 99%

Adsorption and anion exchange insight of indigo carmine onto CuAl-LDH/SWCNTs nanocomposite: kinetic, thermodynamic and isotherm analysis

et al. 2019

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Two-dimensional layered materials are gaining much attention in the field of wastewater purification.Herein, we report the synthesis and characterization of an anion selective copper-aluminum-layered double hydroxide/single-walled carbon nanotubes (CuAl-LDH/SWCNTs) composite for the scavenging of organic dye indigo carmine (IC) from aqueous solution. A facile urea hydrolysis method was used for the controlled growth of the metal hydroxides over the SWCNTs. Structural characterization of the prepared materials was investigated using X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and X-ray diffraction (XRD) techniques. The obtained results revealed that the CuAl-LDH/SWCNTs composite has a higher potential for the removal of IC in comparison to CuAl-LDH and SWCNTs. The enhanced adsorption capacity of the composite revealed that deposition of CuAl-LDH over SWCNTs increases the active adsorption sites and promotes the interactions between the composite and IC dye via anion exchange, electrostatic, p-p, hydrogen bonding etc. Moreover, adsorption kinetics, isotherms, and thermodynamic studies have been also proposed to illustrate the mechanism of the IC adsorption onto the CuAl-LDH/SWCNTs composite. Thermodynamic parameters showed that the adsorption of IC dye onto the CuAl-LDH/SWCNTs composite was exothermic and spontaneous in nature. Intra-particle diffusion was determined to be the rate-limiting step and adsorption of IC followed the Langmuir isotherm model with the maximum monolayer adsorption capacity 294.117 mg g À1 at 20 C. The results suggest that the CuAl-LDH/SWCNTs composite is a potential material for IC adsorption in aqueous solution. Recently, the growth of nanotechnology has improved water treatment technology by representing the suggestion that many water quality issues could be resolved or greatly ameliorated using nanotechnology products. 1,6,15

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Treatment of anionic dye aqueous solution using Ti, HDTMA and Al/Fe pillared bentonite. Essay to regenerate the adsorbent

Cited by 28 publications

References 45 publications

Heterogeneous Fenton catalysts: A review of recent advances

Heterogeneous Fenton catalysts: A review of recent advances

Hectorite-CTAB–alginate composite beads for water treatment: kinetic, isothermal and thermodynamic studies

Adsorption and anion exchange insight of indigo carmine onto CuAl-LDH/SWCNTs nanocomposite: kinetic, thermodynamic and isotherm analysis

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