Photocatalytic activities of coke carbon/g-C3N4 and Bi metal/Bi mixed oxides/g-C3N4 nanohybrids for the degradation of pollutants in wastewater

Sierra, Maria Marta de Souza; Borges, M.E.; Esparza, P.; Méndez‐Ramos, J.; Martín‐Gil, Jesús; Martín-Ramos, Pablo

doi:10.1080/14686996.2016.1235962

Cited by 29 publications

(8 citation statements)

References 63 publications

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“…The most common strategy consists in making use of the plasmonic properties of the metal NPs to improve visible light absorption and reduce the recombination of electron-hole pairs. This strategy has been reported by Sierra et al for the Bi spheres/Bi mixed oxides/g-C3N4 nanohybrids 405 and Gao et al for the system Cu-g-C3N4 synthesised by a supramolecular approach. 390 Other interesting example using the low-cost metal Bi to improve progradation was reported by Wang et al 392 The authors deposited plasmonic Bi NPs on g-C3N4@Bi2WO6 microspheres via a hydrothermal method.…”

Section: Liquid Phase Degradation Of Pollutantsmentioning

confidence: 87%

Carbon nitrides and metal nanoparticles: from controlled synthesis to design principles for improved photocatalysis

et al. 2018

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The use of sunlight to drive chemical reactions via photocatalysis is of paramount importance towards a sustainable future. Among several photocatalysts, earth-abundant polymeric carbon nitride (PCN, often wrongly named g-C3N4) has emerged as an attractive candidate due to its ability to absorb light efficiently in the visible and near-infrared ranges, chemical stability, non-toxicity, straightforward synthesis, and versatility as a platform for constructing hybrid materials. Especially, hybrids with metal nanoparticles offer the unique possibility of combining the catalytic, electronic, and optical properties of metal nanoparticles with PCN. Here, we provide a comprehensive overview of PCN materials and their hybrids, emphasizing heterostructures with metal nanoparticles. We focus on recent advances encompassing synthetic strategies, design principles, photocatalytic applications, and charge-transfer mechanisms. We also discuss how the localized surface plasmon resonance (LSPR) effect of some noble metals NPs (e.g. Au, Ag, and Cu), bimetallic compositions, and even non-noble metals NPs (e.g., Bi) synergistically contribute with PCN in light-driven transformations. Finally, we provide a perspective on the field, in which the understanding of the enhancement mechanisms combined with truly controlled synthesis can act as a powerful tool to the establishment of the design principles needed to take the field of photocatalysis with PCN to a new level, where the desired properties and performances can be planned in advance, and the target material synthesized accordingly.

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Section: Liquid Phase Degradation Of Pollutantsmentioning

confidence: 87%

Carbon nitrides and metal nanoparticles: from controlled synthesis to design principles for improved photocatalysis

et al. 2018

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“…Additionally, g-C 3 N 4 /CeO 2 was prepared for the evaluation of its potential application in the hydrogen production by photocatalysis, and degradation of methylene blue [14,15]. g-C 3 N 4 /Bi 2 WO 6 was also studied to explore its excellent properties [16,17,18,19,20]. For example, Li’s group [16] synthesized a series of g-C 3 N 4 /Bi 2 WO 6 composites through a facile in situ hydrothermal approach, which demonstrated greatly enhanced responses to visible light.…”

Section: Introductionmentioning

confidence: 99%

“…The selective reduction of CO 2 to CO was remarkably enhanced. Analogously, Sierra et al [ 20 ] developed a Bi/Bi 2 WO 6 /g-C 3 N 4 ternary composite via thermal reduction of Bi 2 WO 6 with g-C 3 N 4 . Owing to its remarkable red-shift up to 620 nm, Bi/Bi 2 WO 6 /g-C 3 N 4 could catalyze the degradation of methylene blue contaminants under visible light.…”

Section: Introductionmentioning

confidence: 99%

Direct Growth of CuO Nanorods on Graphitic Carbon Nitride with Synergistic Effect on Thermal Decomposition of Ammonium Perchlorate

Tan

et al. 2017

Materials

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Novel graphitic carbon nitride/CuO (g-C3N4/CuO) nanocomposite was synthesized through a facile precipitation method. Due to the strong ion-dipole interaction between copper ions and nitrogen atoms of g-C3N4, CuO nanorods (length 200–300 nm, diameter 5–10 nm) were directly grown on g-C3N4, forming a g-C3N4/CuO nanocomposite, which was confirmed via X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), and X-ray photoelectron spectroscopy (XPS). Finally, thermal decomposition of ammonium perchlorate (AP) in the absence and presence of the prepared g-C3N4/CuO nanocomposite was examined by differential thermal analysis (DTA), and thermal gravimetric analysis (TGA). The g-C3N4/CuO nanocomposite showed promising catalytic effects for the thermal decomposition of AP. Upon addition of 2 wt % nanocomposite with the best catalytic performance (g-C3N4/20 wt % CuO), the decomposition temperature of AP was decreased by up to 105.5 °C and only one decomposition step was found instead of the two steps commonly reported in other examples, demonstrating the synergistic catalytic activity of the as-synthesized nanocomposite. This study demonstrated a successful example regarding the direct growth of metal oxide on g-C3N4 by ion-dipole interaction between metallic ions, and the lone pair electrons on nitrogen atoms, which could provide a novel strategy for the preparation of g-C3N4-based nanocomposite.

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“…In addition to these noble metals, metal element Bi nanoparticles were also used to enhance the optical absorption and prolonged the lifetime of photoexcited carriers . As a low‐price green metal, Bi attracted extensive interest as a promising substitution to replace noble metals due to its unique properties, such as high carrier mobility, LSPR effect and electronic capture performance .…”

Section: Modulated Strategies Of Bi2moo6‐based Materials With Multifumentioning

confidence: 99%

Modulation of Bi₂MoO₆‐Based Materials for Photocatalytic Water Splitting and Environmental Application: a Critical Review

Jiang

Wang

et al. 2019

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Highly active photocatalysts driving chemical reactions are of paramount importance toward renewable energy substitutes and environmental protection. As a fascinating Aurivillius phase material, Bi 2 MoO 6 has been the hotspot in photocatalytic applications due to its visible light absorption, nontoxicity, low cost, and high chemical durability. However, pure Bi 2 MoO 6 suffers from low efficiency in separating photogenerated carriers, small surface area, and poor quantum yield, resulting in low photocatalytic activity. Various strategies, such as morphology control, doping/defect-introduction, metal deposition, semiconductor combination, and surface modification with conjugative π structures, have been systematically explored to improve the photocatalytic activity of Bi 2 MoO 6 . To accelerate further developments of Bi 2 MoO 6 in the field of photocatalysis, this comprehensive Review endeavors to summarize recent research progress for the construction of highly efficient Bi 2 MoO 6 -based photocatalysts. Furthermore, benefiting from the enhanced photo catalytic activity of Bi 2 MoO 6 -based materials, various photocatalytic applications including water splitting, pollutant removal, and disinfection of bacteria, were introduced and critically reviewed. Finally, the current challenges and prospects of Bi 2 MoO 6 are pointed out. This comprehensive Review is expected to consolidate the existing fundamental theories of photo catalysis and pave a novel avenue to rationally design highly efficient Bi 2 MoO 6 -based photocatalysts for environmental pollution control and green energy development.

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Photocatalytic activities of coke carbon/g-C₃N₄ and Bi metal/Bi mixed oxides/g-C₃N₄ nanohybrids for the degradation of pollutants in wastewater

Cited by 29 publications

References 63 publications

Carbon nitrides and metal nanoparticles: from controlled synthesis to design principles for improved photocatalysis

Carbon nitrides and metal nanoparticles: from controlled synthesis to design principles for improved photocatalysis

Direct Growth of CuO Nanorods on Graphitic Carbon Nitride with Synergistic Effect on Thermal Decomposition of Ammonium Perchlorate

Modulation of Bi₂MoO₆‐Based Materials for Photocatalytic Water Splitting and Environmental Application: a Critical Review

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Photocatalytic activities of coke carbon/g-C3N4 and Bi metal/Bi mixed oxides/g-C3N4 nanohybrids for the degradation of pollutants in wastewater

Cited by 29 publications

References 63 publications

Carbon nitrides and metal nanoparticles: from controlled synthesis to design principles for improved photocatalysis

Carbon nitrides and metal nanoparticles: from controlled synthesis to design principles for improved photocatalysis

Direct Growth of CuO Nanorods on Graphitic Carbon Nitride with Synergistic Effect on Thermal Decomposition of Ammonium Perchlorate

Modulation of Bi2MoO6‐Based Materials for Photocatalytic Water Splitting and Environmental Application: a Critical Review

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Photocatalytic activities of coke carbon/g-C₃N₄ and Bi metal/Bi mixed oxides/g-C₃N₄ nanohybrids for the degradation of pollutants in wastewater

Modulation of Bi₂MoO₆‐Based Materials for Photocatalytic Water Splitting and Environmental Application: a Critical Review