Synthesis and characterization of Black Au nanoparticles deposited over g-C
            <sub>3</sub>
            N
            <sub>4</sub>
            nanosheets: enhanced photocatalytic degradation of methylene blue

Atashkadi, Mojdeh; Mohadesi, Alireza; Karimi, Mohammad Ali; Mohammadi, Sayed Zia; Aghaei, Vida Haji

doi:10.1080/09593330.2022.2138558

Cited by 3 publications

(4 citation statements)

References 40 publications

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“…Photocatalytic activities of the as-synthesized samples were evaluated by photodegradation of MB solution at room temperature inside the homemade wooden apparatus, using a 50W LED lamp to supply visible light and a small ventilator fan for air ow, according to our previous works [4]. In a series of typical photocatalytic experiments, 0.1 g catalyst powder was dispersed in 100 mL MB aqueous solution (10 mg L -1 , neutral pH) and stirred in the dark for 60 min to achieve an adsorption-desorption equilibrium.…”

Section: Photocatalytic Activitymentioning

confidence: 99%

“…Typically, 0.01 M of ascorbic acid (AA), isopropyl alcohol (IPA), and potassium iodide (KI) scavengers as the trapping agents of •O 2 -, •OH, and h + were respectively applied to MB solution. The above suspensions were subjected to photocatalytic activity evaluation under visible light irradiation [4].…”

Section: Reactive Species Trapping Experimentsmentioning

confidence: 99%

“…Methylene blue (MB) is one of these toxic dyes high enough to be known as an ecological imbalance [2]. Photocatalytic degradation and employing earth-abundant sunlight-driven catalysts is the most extensively used method to oxidize organic pollutants via generating reactive species [3,4]. It has served as a successful method owing to its clean, simple, and practical technology, low energy consumption, high e ciency, no secondary pollution, and non-toxicity [5].…”

Section: Introductionmentioning

confidence: 99%

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Preparation, Characterization, and Application of Novel Ternary PPS/PVA/Fe3O4 Nanocomposite for Enhanced Visible Light Photocatalytic Degradation of Methylene Blue

Atashkadi,

Mohadesi,

Karimi

et al. 2023

J Clust Sci

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This study used a simple co-precipitation method to fabricate a novel polymer-based photocatalyst that displayed effective photocatalytic activity towards the degradation of methylene blue (MB) solution under visible light irradiation. Due to its excellent properties, intrinsic polarization, and asymmetric structure, polyphenylene sul de (PPS) was utilized in the magnetic ternary PPS/PVA/Fe 3 O 4 nanocomposite. The analytical techniques con rmed the desirable combination of the photo-initiated Fe 3 O 4 nanoparticles as the strong oxidizers with the high adsorption capacity of PPS and the binding and conductive effects of polyvinyl alcohol (PVA). Binary nanocomposites of PPS/Fe 3 O 4 and PVA/Fe 3 O 4 were also prepared to compare their photocatalytic activities with that of the PPS/PVA/Fe 3 O 4 sample.The optimum degradation occurred in PPS/PVA/Fe 3 O 4 , reaching 83% after 120 minutes. Its superior activity was attributed to the synergistic interactions, such as broader absorption of visible light, suppression of electron-hole pair recombination, and increment in the surface area of the mesoporous catalyst. Based on the effects of scavengers, it was concluded that hydroxyl radicals had a vital role in the photodegradation of methylene blue. Kinetically, the photocatalytic activity of PPS/PVA/Fe 3 O 4 followed the pseudo-rst-order kinetic model, which was about 3.9 and 3.1 times greater than those of PPS and PPS/Fe 3 O 4 , respectively. More speci cally, the superparamagnetic behavior of PPS/PVA/Fe 3 O 4 helped to be recovered with an external magnetic eld and showed good reusability and stability after four successive runs. The current work suggests that PPS-based photocatalysts can provide promising opportunities for the photocatalytic degradation of organic pollutants and opens up a new perspective on water treatment.

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Section: Photocatalytic Activitymentioning

confidence: 99%

Section: Reactive Species Trapping Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preparation, Characterization, and Application of Novel Ternary PPS/PVA/Fe3O4 Nanocomposite for Enhanced Visible Light Photocatalytic Degradation of Methylene Blue

Atashkadi,

Mohadesi,

Karimi

et al. 2023

J Clust Sci

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“…To overcome this problem, some scientists focused on water treatment, especially printing), the importance of treatment of wastewater originating from dyes may become more evident [7-9]. Different methods have been utilized to degrade wastewater, including physiochemical and biological approaches; photodegradation has massive potential for dealing with wastewater since its a clean and cost-effective method [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis and Characterization of gCN, gCN-Zn and gCN-Fe Binary Nanocomposite and Its Application as Photocatalyst for Methylene Blue Degradation

Kavgacı

Eskalen

2023

Sakarya University Journal of Science

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Thermal condensation method to obtain for pure graphitic carbon nitride (gCN) and two binary nanocomposites, gCN-Zn - gCN-Fe have been used in the present study. The structural, morphological, thermal and optical characterizations of the syhtesized samples were characterized with X-ray diffraction, scanning electron microscopy, thermogravimetric analysis (TGA) and UV-Vis spectroscopy. The intensity of characteristic gCN peak at (002) crystalline plane decrease with formation of binary nanocomposites was observed. The EDX spectra supports presents of Zn and Fe element in binary nanocomposites. The bandgap of pristine gCN is calculated as 2.75 eV and it decreases to 2.58 eV and 2.50 eV for Zn and Fe addition. The degradation capacity of pristine gCN and synthesized binary nanocomposites showed an enhanced photodegradation performance for binary composite relative to pristine gCN was observed. The maximum degradation performance was observed at gCN-Zn binary composite. The obtained composites with this simple synthesis method and cost effective raw materials used for the photodegradation of methylene blue dye detail.

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Preparation, Characterization, and Application of Novel Ternary PPS/PVA/Fe 3 O 4 Nanocomposite for Enhanced Visible Light Photocatalytic Degradation of Methylene Blue

Atashkadi

Mohadesi

Karimi

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

This study used a simple co-precipitation method to fabricate a novel polymer-based photocatalyst that displayed effective photocatalytic activity towards the degradation of methylene blue (MB) solution under visible light irradiation. Due to its excellent properties, intrinsic polarization, and asymmetric structure, polyphenylene sulfide (PPS) was utilized in the magnetic ternary PPS/PVA/Fe3O4 nanocomposite. The analytical techniques confirmed the desirable combination of the photo-initiated Fe3O4 nanoparticles as the strong oxidizers with the high adsorption capacity of PPS and the binding and conductive effects of polyvinyl alcohol (PVA). Binary nanocomposites of PPS/Fe3O4 and PVA/Fe3O4 were also prepared to compare their photocatalytic activities with that of the PPS/PVA/Fe3O4 sample. The optimum degradation occurred in PPS/PVA/Fe3O4, reaching 83% after 120 minutes. Its superior activity was attributed to the synergistic interactions, such as broader absorption of visible light, suppression of electron-hole pair recombination, and increment in the surface area of the mesoporous catalyst. Based on the effects of scavengers, it was concluded that hydroxyl radicals had a vital role in the photodegradation of methylene blue. Kinetically, the photocatalytic activity of PPS/PVA/Fe3O4 followed the pseudo-first-order kinetic model, which was about 3.9 and 3.1 times greater than those of PPS and PPS/Fe3O4, respectively. More specifically, the superparamagnetic behavior of PPS/PVA/Fe3O4 helped to be recovered with an external magnetic field and showed good reusability and stability after four successive runs. The current work suggests that PPS-based photocatalysts can provide promising opportunities for the photocatalytic degradation of organic pollutants and opens up a new perspective on water treatment.

show abstract

Synthesis and characterization of Black Au nanoparticles deposited over g-C ₃ N ₄ nanosheets: enhanced photocatalytic degradation of methylene blue

Cited by 3 publications

References 40 publications

Preparation, Characterization, and Application of Novel Ternary PPS/PVA/Fe3O4 Nanocomposite for Enhanced Visible Light Photocatalytic Degradation of Methylene Blue

Preparation, Characterization, and Application of Novel Ternary PPS/PVA/Fe3O4 Nanocomposite for Enhanced Visible Light Photocatalytic Degradation of Methylene Blue

Facile Synthesis and Characterization of gCN, gCN-Zn and gCN-Fe Binary Nanocomposite and Its Application as Photocatalyst for Methylene Blue Degradation

Preparation, Characterization, and Application of Novel Ternary PPS/PVA/Fe 3 O 4 Nanocomposite for Enhanced Visible Light Photocatalytic Degradation of Methylene Blue

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Synthesis and characterization of Black Au nanoparticles deposited over g-C 3 N 4 nanosheets: enhanced photocatalytic degradation of methylene blue

Cited by 3 publications

References 40 publications

Preparation, Characterization, and Application of Novel Ternary PPS/PVA/Fe3O4 Nanocomposite for Enhanced Visible Light Photocatalytic Degradation of Methylene Blue

Preparation, Characterization, and Application of Novel Ternary PPS/PVA/Fe3O4 Nanocomposite for Enhanced Visible Light Photocatalytic Degradation of Methylene Blue

Facile Synthesis and Characterization of gCN, gCN-Zn and gCN-Fe Binary Nanocomposite and Its Application as Photocatalyst for Methylene Blue Degradation

Preparation, Characterization, and Application of Novel Ternary PPS/PVA/Fe 3 O 4 Nanocomposite for Enhanced Visible Light Photocatalytic Degradation of Methylene Blue

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Synthesis and characterization of Black Au nanoparticles deposited over g-C ₃ N ₄ nanosheets: enhanced photocatalytic degradation of methylene blue