Role of SiO interlayer in the electrochemical degradation of Amaranth dye using SS/PbO anodes

Elaissaoui, Ines; Akrout, Hanène; Grassini, Sabrina; Fulginiti, Daniele; Bousselmi, Latifa

doi:10.1016/j.matdes.2016.08.044

Cited by 32 publications

(10 citation statements)

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“…These findings indicated that the entire percentages are higher than 50% and therefore decay in the toxicity of the tested solutions was achieved (Buchmann et al 2014). Furthermore, these rates confirmed the decrease in the amounts of by-products formed by the oxidation of amaranth on the SS/PbO2 anodes (Elaissaoui et al 2016). The high values reached in the case of the coupling process compared to the AO can be explained by the positive effect played by the L.C which favored the retention of Amaranth by the available sites on its surface and therefore minimize the amount of the by-products formed.…”

Section: Germination Testssupporting

confidence: 59%

“…The adjustment of pH was done using dilute HCl (0.1 M) or NaOH (0.1M) (purity 95-97%) solution before biosorption. During the experiments, concentrations were determined by UV visible spectrophotometer (Perkin Elmer Lamda 25) using quartz cuvettes at λ=520 nm based on the following equation (Elaissaoui et al 2016)…”

Section: Schematic Of Coupling Anodic Oxidation With Biosorptionmentioning

confidence: 99%

“…Wastewater is characterized by strong variations in pH, high concentration of organic matter , and high chemical oxygen demand (Choi et al 2017). Some compounds are easily degradable chemically or biologically, others are recalcitrant to conventional treatment methods and there is a need to seek more adequate treatment systems (Elaissaoui et al 2016). Up to date, plenty of methods have been used in the cure of contaminated water including cheap alternatives like biosorption and expensive ones like electrochemical processes (Fernandes et al 2016;Elaissaoui et al 2019).…”

Section: Introductionmentioning

confidence: 99%

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The combined chemical and mechanical modifications of cigarette: a novel methodology to reduce harmful effects

Kollati

Mohapatra

2021

Environ Sci Pollut Res

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The present paper aims to valorize the use of cheap agricultural waste materials for polluted water decontamination. An evaluation of the efficiency of coupling anodic oxidation (AO) using SS/PbO2 electrodes with biosorption by Luffa cylindrica (L.C) for the removal of Amaranth Red (E123) from aqueous solution was investigated. The effects of pH, contact time, and initial concentration were studied. The regeneration of L.C was estimated based on biosorption /desorption tests. The performance of the coupling process was evaluated based on the color, chemical organic carbon (COD), Total organic carbon (TOC) removals, the energy consumed, and the time required for the degradation of Amaranth. A comparison between the efficiency of the AO and the coupling process for the increase of the lifetimes of the anodes used was done. 54.1, 97.8, and 99.9% of 50 mg.L -1 of Amaranth were removed respectively after 85, 65, and 50 min by biosorption, AO, and coupling AO with biosorption. An increase in the percentages of COD, TOC, germination indexes (GI), and Amaranth removals were observed when adopting the coupling process. Furthermore, a decrease in the release of Pb 2+ ions was observed confirming the good stability of the elaborated anodes during the coupling process. Atomic absorption analysis showed that the Pb 2+ ions reached about 0.020 mg.L -1 , after the total removal of Amaranth dye (60 min) and 0.051 after (80 min) respectively, for coupling AO with biosorption and the AO process. These values are inferior to those allowed by the Standards. Phytotoxicity tests confirmed the possibility of the reuse of the treated solutions.

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Section: Germination Testssupporting

confidence: 59%

Section: Schematic Of Coupling Anodic Oxidation With Biosorptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The combined chemical and mechanical modifications of cigarette: a novel methodology to reduce harmful effects

Kollati

Mohapatra

2021

Environ Sci Pollut Res

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“…Textile dying wastewaters are classified among the most highly toxic effluents [1,2]. Numerous processes have been suggested for treatment and purification such as biological treatment [3], coagulation-flocculation [4], adsorption [5], ultrafiltration [6], electrocoagulation [7], reverse osmosis [8] and anodic oxidation [9]. The current research was devoted to water remediation through the valorization of the abundant renewable resource of cellulosic fibers [10].…”

Section: Introductionmentioning

confidence: 99%

Textile Wastewater Purification Using an Elaborated Biosorbent Hybrid Material (Luffa–Cylindrica–Zinc Oxide) Assisted by Alternating Current

Othmani

Kesraoui

Boada

et al. 2019

Water

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This paper aims to synthesize hybrid materials with high pollutant-uptake capacity and low costbased based on Luffa cylindrica (L.C) and different percentage of Zn2+ in the presence and absence of alternating current (AC). Physico-chemical, morphological and structural characterizations of the hybrid materials were performed by Boehm method, point zero charge (pHpzc), infrared characterizations (IR), scanning electron microscopy (SEM), energy–dispersive spectroscopyand and X-ray photoelectron spectroscopy. The efficiency of the designed hybrid materials was optimized based on their performance in water depollution. Methylene blue (MB) and industrial textile wastewater were the investigated pollutants models. IR characterizations confirmed the fixation of Zn2+ onto the L.C by the creation of Zn-OH, Zn-O and Zn-O-C bonds. Boehm titration showed that the fixation of Zn2+ onto L.C is accompanied by an increase of the basic functions of its surface and subsequently an increase in the pHpzc. SEM results confirmed the fixation of Zn2+ onto the L.C coupling AC with biosorption showed an increase in the adsorbed amount of MB and speed when adding the 4% of Zn2+ compared to the pure L.C the Qm shifted from 3.22 to 9.84 and 8.81 mg/g, respectively, for hybrid materials synthesized under AC, in absence of AC and pure L.C.

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“…Since it is impractical to add chemicals, it will greatly limit the engineered application of EC toward the treatment of low-conductivity water such as lake water, groundwater and tap water. For this reason, high-concentration inorganic salts such as Na 2 SO 4 , NaNO 3 , NaCl and NaClO 4 have to be used as supporting electrolyte to provide free mobile ions for increasing solution conductivity in almost all previous studies, − which normally requires further desalination treatment. Besides, the salt film formed on the surface of the anode would hinder ·OH generation as well as the contact between the organics and the anode.…”

Section: Introductionmentioning

confidence: 99%

Chlorophenolic Compounds Degradation Based on Electrolyte-Free Electrochemical Cells

Teng

Zhang

Wang

et al. 2018

ACS Sustainable Chem. Eng.

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To eliminate the requirement for inorganic salt in electrochemical processes, the present study reports the use of ion-exchange resin (IX) matrix to conduct H + or OH − produced during electrolysis for electrochemical degradation of refractory organic pollutants via the generation of reactive oxygen species at room temperature. The results demonstrated that, with the increase in applied voltage over the range of 0−30 V, there was almost no response of current for deionized water as well as chloromethylated bead due to the lack of free mobile ions. On the contrary, both cation exchange resin (CX) and anion exchange resin (AX) showed comparable current response to voltage as sodium sulfate electrolyte. In the absence of salt addition, the CX or AX could achieve effective degradation of 2,4-dichlorophenol (2,4-DCP), accounting for degradation efficiency higher than 97% after 90 min at current density of 5 mA/cm 2 . The performances of IX-based electrochemical system decreased slightly after 20 cycles of experiments, indicating good stability of IX during electrochemical degradation. This study provides a proof-of-concept demonstration of an effective ion-conductive material for low-conductivity water or wastewater decontamination using electrochemical technology, making low-conductivity water treatment more economical and more sustainable.

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Role of SiO interlayer in the electrochemical degradation of Amaranth dye using SS/PbO anodes

Cited by 32 publications

References 68 publications

The combined chemical and mechanical modifications of cigarette: a novel methodology to reduce harmful effects

The combined chemical and mechanical modifications of cigarette: a novel methodology to reduce harmful effects

Textile Wastewater Purification Using an Elaborated Biosorbent Hybrid Material (Luffa–Cylindrica–Zinc Oxide) Assisted by Alternating Current

Chlorophenolic Compounds Degradation Based on Electrolyte-Free Electrochemical Cells

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