Two facile synthesis routes for magnetic recoverable MnFe2O4/g-C3N4 nanocomposites to enhance visible light photo-Fenton activity for methylene blue degradation

Angkaew, Athaphon; Chokejaroenrat, Chanat; Sakulthaew, Chainarong; Mao, Jin; Watcharatharapong, Teeraphat; Watcharenwong, Apichon; Imman, Saksit; Suriyachai, Nopparat; Kreetachat, Torpong

doi:10.1016/j.jece.2021.105621

Cited by 46 publications

(36 citation statements)

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“…Then, electron transfer occurred from Fe(III) to Fe(II), which corresponded to the increase in Fe(II) from the Fe 2p spectrum (Equation (21); Figure 4 ). Once these O species were formed with the available O 3 or • OH, they could react and later form both 1 O 2 and O 2 •− (Equations (19), (22)–(24)) [ 17 , 43 ]. CF≡Fe (III) –OH + O 3 → CF≡Fe (III) –O 3 • + • OH ads CF≡Fe (III) –O 3 • + OH − → CF≡Fe (II) + HO 2 • + O 2 HO 2 • → • O 2 − + H + • O 2 − + HO 2 • → 1 O 2 + OOH − HO 2 • + HO 2 • → 1 O 2 + H 2 O 2 Cu (II) + • O 2 − → Cu (I) + O 2 …”

Section: Resultsmentioning

confidence: 99%

“…All metal ferrite nanocomposites (MF) were synthesized through a co-precipitation method followed by calcination, as modified from our previous study [ 17 ]. A mixture of 0.2 M MSO 4 (CuSO 4 , NiCl 2 ·6H 2 O, CoCl 2 ·6H 2 O, MnSO 4 ·H 2 O), 0.4 M FeCl 3 ·6H 2 O, and distilled water (DI) at a ratio of 1:1:2 ( v / v ) was heated under a constant stirring at 80 °C for 1 h. A heated solution of 8 M NaOH was used to slowly adjust the pH to 10.5 within 1 h and then the mixture was continuously stirred for 1 h. To obtain uniform particles, the mixture at room temperature was washed with DI water until a neutral pH was reached.…”

Section: Methodsmentioning

confidence: 99%

“…While these complexes are not commonly used in a conventional water treatment system, this can be altered by introducing the right dopants into the nanocomposites and utilizing their unique properties. The construction of nanocomposites with a metal-free catalytic material, such as graphitic carbon nitride (g-C 3 N 4 ), is also an interesting choice for providing superior magnetic separation properties [ 17 ]; however, its catalytic ozonation performance, especially with parabens, remains unknown. Given that several synthesis methods are available, co-precipitation is a very convenient approach and does not require any toxic solvent during synthesis, which is also feasible for large-scale production.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Ternary Nanoparticles for Catalytic Ozonation to Treat Parabens: Mechanisms, Efficiency, and Effects on Ceratophyllum demersum L. and Eker Leiomyoma Tumor-3 Cells

et al. 2022

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The use of parabens in personal care products can result in their leakage into water bodies, especially in public swimming pools with insufficient water treatment. We found that ferrite-based nanomaterials could catalytically enhance ozone efficiency through the production of reactive oxygen species. Our objective was to develop a catalytic ozonation system using ternary nanocomposites that could minimize the ozone supply while ensuring the treated water was acceptable for disposal into the environment. A ternary CuFe2O4/CuO/Fe2O3 nanocomposite (CF) delivered excellent degradation performance in catalytic ozonation systems for butylparaben (BP). By calcining with melamine, we obtained the CF/g-C3N4 (CFM) nanocomposite, which had excellent magnetic separation properties with slightly lower degradation efficiency than CF, due to possible self-agglomeration that reduced its electron capture ability. The presence of other constituent ions in synthetic wastewater and actual discharge water resulted in varying degradation rates due to the formation of secondary active radicals. 1O2 and •O2− were the main dominant reactive species for BP degradation, which originated from the O3 adsorption that occurs on the CF≡Cu(I)–OH and CF≡Fe(III)–OH surface, and from the reaction with •OH from indirect ozonation. Up to 50% of O3-treated water resulted in >80% ELT3 cell viability, the presence of well-adhered cells, and no effect on the young tip of Ceratophyllum demersum L. Overall, our results demonstrated that both materials could be potential catalysts for ozonation because of their excellent degrading performance and, consequently, their non-toxic by-products.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fabrication of Ternary Nanoparticles for Catalytic Ozonation to Treat Parabens: Mechanisms, Efficiency, and Effects on Ceratophyllum demersum L. and Eker Leiomyoma Tumor-3 Cells

et al. 2022

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“…Therefore, they are considered promising photo-Fenton catalytic materials, and many articles have reported their application in wastewater treatment. 47–49…”

Section: Basic Principles Of Photo-fenton Catalytic Degradation Over ...mentioning

confidence: 99%

Review on cobalt ferrite as photo-Fenton catalysts for degradation of organic wastewater

Wang

You

et al. 2023

Catal. Sci. Technol.

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“…The difficult separation of nanomagnetite from the application medium promotes the formation of a new bio-composite with another biopolymer to enhance its oxidation power and facilitate its separation. Photo-Fenton degradation of MB was studied using different composites such as Au-Fe 3 O 4 /graphene, MnFe 2 O 4 /g-C 3 N 4 , β-NiOOH/FeMoO 4 , and CuFe 2 O 4 -Fe 2 O 3 [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Adsorption and Photo-Fenton Degradation of Methylene Blue Using Nanomagnetite/Potassium Carrageenan Bio-Composite Beads

et al. 2022

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The present study deals with the preparation of nanomagnetite (NM), potassium carrageenan (KC), and nanomagnetite/potassium carrageenan bio-composite beads (NC). Characterization of the prepared solid materials using different physicochemical techniques such as X-ray diffraction analysis (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscope (TEM), energy-disperse X-ray spectroscopy (EDX), diffuse reflectance spectrophotometer (DRS), swelling ratio (SR%), N2 adsorption, pH of point of zero charges (pHPZC), and Fourier transform infrared spectroscopy (FTIR). Comparing between adsorption and photo-Fenton degradation process for methylene blue (MB) on the surface of the prepared solid materials. Nanomagnetite/potassium carrageenan bio-composite (NC) exhibited high specific surface area (406 m2/g), mesoporosity (pore radius, 3.64 nm), point of zero charge around pH6.0, and the occurrence of abundant oxygen-containing functional groups. Comparison between adsorption and photo-Fenton oxidation process for methylene blue (MB) was carried out under different application conditions. NC exhibited the maximum adsorption capacity with 374.50 mg/g at 40 °C after 24 h of shaking time while 96.9% of MB was completely degraded after 20 min of photo-Fenton process. Langmuir's adsorption model for MB onto the investigated solid materials is the best-fitted adsorption model based on the higher correlation coefficient values (0.9771–0.9999). Kinetic and thermodynamic measurements prove that adsorption follows PSO, endothermic, and spontaneous process, while photo-Fenton degradation of MB achieves PFO, nonspontaneous, and endothermic process. Photo-Fenton degradation is a fast and simple technique at a lower concentration of dye (< 40 mg/L) while at higher dye concentration, the adsorption process is preferred in the removal of that dye.

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Two facile synthesis routes for magnetic recoverable MnFe2O4/g-C3N4 nanocomposites to enhance visible light photo-Fenton activity for methylene blue degradation

Cited by 46 publications

References 63 publications

Fabrication of Ternary Nanoparticles for Catalytic Ozonation to Treat Parabens: Mechanisms, Efficiency, and Effects on Ceratophyllum demersum L. and Eker Leiomyoma Tumor-3 Cells

Fabrication of Ternary Nanoparticles for Catalytic Ozonation to Treat Parabens: Mechanisms, Efficiency, and Effects on Ceratophyllum demersum L. and Eker Leiomyoma Tumor-3 Cells

Review on cobalt ferrite as photo-Fenton catalysts for degradation of organic wastewater

Adsorption and Photo-Fenton Degradation of Methylene Blue Using Nanomagnetite/Potassium Carrageenan Bio-Composite Beads

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