An overview on Ag modified g-C3N4 based nanostructured materials for energy and environmental applications

Patnaik, Sulagna; Sahoo, Dipti Prava; Parida, Kulamani

doi:10.1016/j.rser.2017.09.026

Cited by 220 publications

(65 citation statements)

References 58 publications

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“…It also suggests good coordination between Ag NPs and g‐C 3 N 4 , which may favor charge separation and enhance photocatalytic activity. The similar results also had been reported by others …”

Section: Resultssupporting

confidence: 92%

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Enhanced Visible‐Light Photocatalytic and Antibacterial Activities of Ag‐Doped g‐C₃N₄ Nanocomposites

Liu

Zhang

2018

ChemistrySelect

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The silver modified graphitic carbon nitride (g‐C3N4/Ag) was prepared by the photo‐deposition method. The crystal structures, chemical structures, morphology, recombination rate and surface charge were characterized by X‐ray diffraction spectroscopy (XRD), Fourier transform‐infrared spectroscopy (FTIR), Transmission electron microscopy (TEM), photoluminescence spectra (PL), and zeta potential, respectively. The effects of silver content on the photocatalytic and antibacterial performance were studied. The photocatalytic mechanism of the g‐C3N4/Ag was revealed by free radical capture. The results showed that the prepared catalysts had layered stack structure. The photocatalytic property and antibacterial activity of g‐C3N4/Ag nanocomposites were significantly promoted by the modification of silver nanoparticles.

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Section: Resultssupporting

confidence: 92%

“…The generated holes are left in the VB and readily react with surface‐bound OH to form hydroxyl radical species (•OH) to undergo photocatalytic degradation process. The mechanism is briefly discussed in the following equations …”

Section: Resultsmentioning

confidence: 99%

Enhanced Visible‐Light Photocatalytic and Antibacterial Activities of Ag‐Doped g‐C₃N₄ Nanocomposites

Liu

Zhang

2018

ChemistrySelect

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“…Direct contact between the N-doped ZnO core and g-C 3 N 4 shell introduced a new energy level into the N-doped ZnO band gap, effectively narrowing the band gap. Consequently, these hybrid core-shell nanostructures showed greatly enhanced visible light photocatalysis for RhB degradation compared to pure N-doped ZnO surface or g-C 3 N 4 components (Figure 22Ac) [240]. A facile, reproducible, and template-free synthesis has also been demonstrated to prepare magnetically separable g-C 3 N 4 −Fe 3 O 4 nanocomposites (Figure 22Ba) [37].…”

Section: Environmental Remediationmentioning

confidence: 99%

“…The Au surface plasmon resonance broadens the optical adsorption range, while Pt acts as a sink for photoexcited electrons. The combination of noble metals and g-C 3 N 4 enables tunable heterojunctions with improved charge transport than traditional nanocomposites [237][238][239][240][241][242][243], and such multicomponent heterostructures are a promising solution to environmental depollution [39,40,42], for example g-C 3 N 4 /Ag 3 PO 4 systems for MO degradation [242,243]. Ag 3 PO 4 @g-C 3 N 4 core-shell photocatalysts have also been applied to MB degradation under visible light, achieving 97% conversion in 30 min compared with only 79% for a physical mixture of the Ag 3 PO 4 and g-C 3 N 4 components, and 69% for pure Ag 3 PO 4 .…”

Section: Environmental Remediationmentioning

confidence: 99%

g-C3N4-Based Nanomaterials for Visible Light-Driven Photocatalysis

2018

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Graphitic carbon nitride (g-C 3 N 4 ) is a promising material for photocatalytic applications such as solar fuels production through CO 2 reduction and water splitting, and environmental remediation through the degradation of organic pollutants. This promise reflects the advantageous photophysical properties of g-C 3 N 4 nanostructures, notably high surface area, quantum efficiency, interfacial charge separation and transport, and ease of modification through either composite formation or the incorporation of desirable surface functionalities. Here, we review recent progress in the synthesis and photocatalytic applications of diverse g-C 3 N 4 nanostructured materials, and highlight the physical basis underpinning their performance for each application. Potential new architectures, such as hierarchical or composite g-C 3 N 4 nanostructures, that may offer further performance enhancements in solar energy harvesting and conversion are also outlined.

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“…Over the last decade, it is well established that more and more attention has been paid to environmental problems such as organic pollutant . As an effective method for environmental governance, photocatalytic technology has made pioneering progress in the degradation of organic pollutants .…”

Section: Introductionmentioning

confidence: 99%

Magnetic retrievable Ag/AgBr/ZnFe₂O₄ photocatalyst for efficient removal of organic pollutant under visible light

Liu

Xue

et al. 2020

Applied Organom Chemis

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In the present work, a visible‐light‐driven Ag/AgBr/ZnFe2O4 photocatalyst has been successfully synthesized via a deposition–precipitation and photoreduction method. The crystal structure, chemical composition, morphology and optical properties of the as‐prepared nanocomposites were characterized by X‐ray diffraction spectroscopy, X‐ray photoelectron spectroscopy, scanning electron microscopy, high‐resolution transmission electron microscopy, energy‐dispersive X‐ray spectroscope, UV–vis diffuse reflectance spectroscopy and photoluminescence. The photocatalytic activities of the Ag/AgBr/ZnFe2O4 nanocomposites were evaluated through the photodegradation of gaseous toluene and methyl orange (MO) under visible light. The results revealed that the as‐prepared Ag/AgBr/ZnFe2O4 nanocomposite exhibited excellent photocatalytic activity. The degrading efficiency of MO could still reach 90% after four cycles, and the Ag/AgBr/ZnFe2O4 nanocomposite could be recycled easily by a magnet. Additionally, the enhanced photocatalytic mechanism was discussed according to the trapping experiments, which indicated that the photo‐generated holes (h+) and •O2− played important roles in photodegradation process. At last, a possible photocatalytic oxidation pathways of toluene was proposed based on the results of GC–MS. The Ag/AgBr/ZnFe2O4 composites showed potential application for efficient removal of organic pollutant.

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An overview on Ag modified g-C3N4 based nanostructured materials for energy and environmental applications

Cited by 220 publications

References 58 publications

Enhanced Visible‐Light Photocatalytic and Antibacterial Activities of Ag‐Doped g‐C₃N₄ Nanocomposites

Enhanced Visible‐Light Photocatalytic and Antibacterial Activities of Ag‐Doped g‐C₃N₄ Nanocomposites

g-C3N4-Based Nanomaterials for Visible Light-Driven Photocatalysis

Magnetic retrievable Ag/AgBr/ZnFe₂O₄ photocatalyst for efficient removal of organic pollutant under visible light

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An overview on Ag modified g-C3N4 based nanostructured materials for energy and environmental applications

Cited by 220 publications

References 58 publications

Enhanced Visible‐Light Photocatalytic and Antibacterial Activities of Ag‐Doped g‐C3N4 Nanocomposites

Enhanced Visible‐Light Photocatalytic and Antibacterial Activities of Ag‐Doped g‐C3N4 Nanocomposites

g-C3N4-Based Nanomaterials for Visible Light-Driven Photocatalysis

Magnetic retrievable Ag/AgBr/ZnFe2O4 photocatalyst for efficient removal of organic pollutant under visible light

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Resources

About

Enhanced Visible‐Light Photocatalytic and Antibacterial Activities of Ag‐Doped g‐C₃N₄ Nanocomposites

Enhanced Visible‐Light Photocatalytic and Antibacterial Activities of Ag‐Doped g‐C₃N₄ Nanocomposites

Magnetic retrievable Ag/AgBr/ZnFe₂O₄ photocatalyst for efficient removal of organic pollutant under visible light