Amine-rich quartz nanoparticles for Cu(II) chelation and their application as an efficient catalyst for oxidative degradation of Rhodamine B dye

Gemeay, Ali H.; El-Halwagy, Mohamed E.; Elsherbiny, Abeer S.; Zaki, Ahmed B.

doi:10.1007/s11356-021-12497-6

Cited by 21 publications

(6 citation statements)

References 70 publications

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“…It is well known that the degradation of RhB usually includes N-de-ethylation and chromophore cleavage processes. [44] In this study, the compounds with m/z values of 387 and 359 were probably resulted from the N-de-ethylation process, while the small (molecular weight) organic acids with m/z value of 166 (phthalic acid or p-phthalic acid) and 116 (maleic acid) were likely caused by chromophore cleavage and ring opening process, respectively. A preliminary scheme of RhB degradation pathway is proposed in Figure 10.…”

Section: Possible Degradation Pathway Of Rhbmentioning

confidence: 62%

Peroxydisulfate‐based Non‐radical Oxidation of Rhodamine B by Fe‐Mn Doped Granular Activated Carbon: Kinetics and Mechanism Study

Wu,

Yang,

et al. 2024

Chemistry An Asian Journal

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The present study focused on a green and readily synthesized Fe‐Mn bimetallic oxide doped GAC (Fe‐Mn@GAC), to uncover its catalytic kinetics and mechanism when used in the peroxydisulfate (PDS)‐based oxidation process for degrading Rhodamine B (RhB), a representative xenobiotic dye. The synthesized Fe‐Mn@GAC was characterized by SEM‐EDS, XRD, ICP‐OES and XPS analyses to confirm its physicochemical properties. The catalytic kinetics of Fe‐Mn@GAC + PDS system were evaluated under varying conditions, including PDS and catalyst dosages, solution pH, and the presence of anions. It was found Fe‐Mn@GAC exhibited robust catalytic performance, being insensitive to a wide pH range from 3 to 11, and the presence of anions such as Cl‐, SO42‐, NO3‐ and CO32‐. The catalytic mechanism was investigated by EPR and quenching experiments. The results indicated the catalytic system processed a non‐radical oxidation pathway, dominated by direct electron transfer between RhB and Fe‐Mn@GAC, with singlet oxygen (1O2) playing a secondary role. The catalytic system also managed to maintain a RhB removal above 81% in successive 10 cycles, and recover to 89.5% after simple DI water rinse, showing great reusability. The catalytic system was further challenged by real dye‐containing wastewater, achieving a decolorization rate of 84.5%.

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Section: Possible Degradation Pathway Of Rhbmentioning

confidence: 62%

Peroxydisulfate‐based Non‐radical Oxidation of Rhodamine B by Fe‐Mn Doped Granular Activated Carbon: Kinetics and Mechanism Study

Wu,

Yang,

et al. 2024

Chemistry An Asian Journal

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“…S4d in the ESI, † the absorption peaks at 1715 and 1635 cm À1 are attributed to CQO in aldehyde and the stretching vibration of CQN (overlapped with a characteristic absorbance in 1550-1700 cm À1 ), respectively. 23,37 Electrochemical behaviours of the biosensor…”

Section: Morphology and Structural Characterizationmentioning

confidence: 99%

Immobilization of laccase on Fe₃O₄@MF-CNTs for the rapid and sensitive biosensing of catechol

et al. 2023

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“…An analysis of the degraded solution 90 min after the photocatalytic reaction revealed the presence of numerous small RhB fragments (peaks at m/z values of 111, 118, 122, 132, 166, and 282). It has been discovered that RhB molecules can be broken down into less toxic, smaller molecules by distorting the RhB molecule through processes such as N-de-ethylation, chromophore cleavage, and ring-opening [35][36][37][38][39][40].…”

Section: Possible Photocatalytic Rhb Degradation Pathwaymentioning

confidence: 99%

Preparation of Iron Oxalate from Iron Ore and Its Application in Photocatalytic Rhodamine B Degradation

et al. 2023

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In this study, iron oxalate dihydrate (FOD-ore) was produced from iron ore by the process using oxalic acid to extract iron, followed by photo-reduction. Several techniques, such as X-ray powder diffraction (XRD), Raman, scanning electron microscopy with energy dispersive X-Ray analysis (SEM-EDX), ultraviolet–visible diffuse reflectance spectroscopy (UV-DRS), photoluminescence spectroscopy (PL), and X-ray photoelectron spectroscopy (XPS), were used to determine the physicochemical properties of the FOD-ore sample. To compare the photocatalytic activity of FOD-ore, commercial hematite (Fe2O3) was used as a precursor to creating iron oxalate (FOD). The FOD-ore was applied to the photocatalytic degradation of rhodamine B (RhB), a model organic pollutant in wastewater. Using the produced FOD-ore, we were able to degrade more than 85% of RhB within 90 min at a rate approximately 1.4 times higher than that with FOD. FOD-ore demonstrated greater light absorption than FOD, resulting in improved RhB degradation performance. Moreover, the enhanced separation and transport of photogenerated electron-hole pairs can be attributed to the increased photocatalytic RhB degradation rate of FOD-ore, confirmed by photoluminescence results. Therefore, FOD-ore can be utilized as a potential photocatalyst in the degradation process for other organic pollutants under light irradiation.

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Amine-rich quartz nanoparticles for Cu(II) chelation and their application as an efficient catalyst for oxidative degradation of Rhodamine B dye

Cited by 21 publications

References 70 publications

Peroxydisulfate‐based Non‐radical Oxidation of Rhodamine B by Fe‐Mn Doped Granular Activated Carbon: Kinetics and Mechanism Study

Peroxydisulfate‐based Non‐radical Oxidation of Rhodamine B by Fe‐Mn Doped Granular Activated Carbon: Kinetics and Mechanism Study

Immobilization of laccase on Fe₃O₄@MF-CNTs for the rapid and sensitive biosensing of catechol

Preparation of Iron Oxalate from Iron Ore and Its Application in Photocatalytic Rhodamine B Degradation

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Amine-rich quartz nanoparticles for Cu(II) chelation and their application as an efficient catalyst for oxidative degradation of Rhodamine B dye

Cited by 21 publications

References 70 publications

Peroxydisulfate‐based Non‐radical Oxidation of Rhodamine B by Fe‐Mn Doped Granular Activated Carbon: Kinetics and Mechanism Study

Peroxydisulfate‐based Non‐radical Oxidation of Rhodamine B by Fe‐Mn Doped Granular Activated Carbon: Kinetics and Mechanism Study

Immobilization of laccase on Fe3O4@MF-CNTs for the rapid and sensitive biosensing of catechol

Preparation of Iron Oxalate from Iron Ore and Its Application in Photocatalytic Rhodamine B Degradation

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Immobilization of laccase on Fe₃O₄@MF-CNTs for the rapid and sensitive biosensing of catechol