A facile hydrothermal synthesis of few-layer oxygen-doped g-C3N4 with enhanced visible light-responsive photocatalytic activity

Chen, Mei; Bai, Ruining; Jin, Peng; Li, Jingwei; Yao, Yan; Peng, Anzhong; He, Jieli

doi:10.1016/j.jallcom.2021.159292

Cited by 54 publications

(22 citation statements)

References 56 publications

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“…The as-prepared bulk g-C 3 N 4 was then ultrasonically dispersed with H 2 O 2 solution, then transferred into an autoclave reactor and heated at 120 °C for 6 hours. [65] Zhan and colleagues studied a simple one-pot, cost-effective, and environmentally friendly technique for simultaneously generating highly fluorescent g-CNQDs and g-CNNSs by EtOH-thermal condensation of bulk g-C 3 N 4 using strong base (KOH). Typically, bulk g-C 3 N 4 powder was dispersed in ethanol before being mixed with a concentrated KOH solution.…”

Section: Hydrothermal/solvothermal Methodsmentioning

confidence: 99%

“…Firstly, using melamine as a precursor, thermal polycondensation was used to produce bulk g‐C 3 N 4 . The as‐prepared bulk g‐C 3 N 4 was then ultrasonically dispersed with H 2 O 2 solution, then transferred into an autoclave reactor and heated at 120 °C for 6 hours [65] . Zhan and colleagues studied a simple one‐pot, cost‐effective, and environmentally friendly technique for simultaneously generating highly fluorescent g‐CNQDs and g‐CNNSs by EtOH‐thermal condensation of bulk g‐C 3 N 4 using strong base (KOH).…”

Section: Synthesis Of G‐c3n4 Nanomaterialsmentioning

confidence: 99%

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Carbon Nitride Nanomaterials: Properties, Synthetic Approaches and New Insights in Fluorescence Spectrometry for Assaying of Metal Ions, Organic and Biomolecules

Patel

Kailasa

2022

ChemistrySelect

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Recent years, carbon nitride (C3N4) nanomaterials have engraved new insights into fluorescence spectrometry for the analysis of wide variety analytes (metal ions, organic and biomolecules). This review concentrates on the properties of C3N4 nanomaterials, synthetic routes for C3N4 nanomaterials and insights in fluorescence spectrometry for the detection of various chemical species. Firstly, this review summarizes the properties (photoluminescence, electrochemical, thermal and chemical stability) of C3N4 nanostructure materials. Secondly, the recent advances on the synthetic routes for the fabrication of C3N4 nanostructures including top‐down (hydrothermal, solvothermal and exfoliation) and bottom‐up (hard and soft templet, template‐free, solvothermal, hydrothermal and microwave) are discussed. Thirdly, we describe the new insights of C3N4 nanostructures as probes for assaying of metal ions, organic and biomolecules from complex samples via fluorescence spectrometry. Finally, we have summarized the future perspectives of carbon nitride nanostructures in analytical chemistry are described.

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Section: Hydrothermal/solvothermal Methodsmentioning

confidence: 99%

Section: Synthesis Of G‐c3n4 Nanomaterialsmentioning

confidence: 99%

Carbon Nitride Nanomaterials: Properties, Synthetic Approaches and New Insights in Fluorescence Spectrometry for Assaying of Metal Ions, Organic and Biomolecules

Patel

Kailasa

2022

ChemistrySelect

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“…Firstly, the bulk g-C 3 N 4 was synthesized by a simple thermal polymerization of melamine according to our previous work. 28 Typically, 5 g of melamine was heated to 500 °C in a tube furnace at a ramping rate of 10 °C min −1 and kept at this temperature for 2 h and then continued to heat up to 520 °C at the same heating rate and kept for another 2 h. After naturally cooling to room temperature, the obtained yellow product was ground into a homogeneous powder.…”

Section: Methodsmentioning

confidence: 99%

“…Compared with our previous assynthesized few-layer g-C 3 N 4 (ref. 28) and much of g-C 3 N 4 materials, 49,50 the absorption and uorescent behaviors of the as-prepared g-C 3 N 4 QDs show a clear blue shi, which could be due to the quantum connement effect. 43 The absolute quantum yield of the obtained g-C 3 N 4 QDs is 0.097, which is slightly higher than that of the reported carbon dots.…”

Section: Optical Properties Of G-c 3 N 4 Qdsmentioning

confidence: 98%

Facile synthesis of carbon nitride quantum dots as a highly selective and sensitive fluorescent sensor for the tetracycline detection

Bai

Jin

et al. 2021

RSC Adv.

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“…In the OSC family, conjugated polymers, g -C 3 N 4 [ 4 , 5 , 6 , 7 , 8 ], polypyrrole (PPy) [ 9 , 10 ], polyaniline (PANI) [ 11 , 12 ], polyimide (PI) [ 13 ], poly (3-hexylthiophene) (P3HT) [ 14 ], polyhydroxybutyrate (PHB) [ 15 , 16 ], etc., have been extensively used for photocatalytic purposes due to their broad, molecular-level tuning of optoelectronic properties. Among them, g -C 3 N 4 resembles graphene and has a unique two-dimensional (2D) delocalized conjugated structure, which is formed by an infinite extension of triazine ring (C 3 N 3 ) or tri-s-triazine ring (C 6 N 7 ) as basic structural units [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

g-C3N4: Properties, Pore Modifications, and Photocatalytic Applications

et al. 2021

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Graphitic carbon nitride (g-C3N4), as a polymeric semiconductor, is promising for ecological and economical photocatalytic applications because of its suitable electronic structures, together with the low cost, facile preparation, and metal-free feature. By modifying porous g-C3N4, its photoelectric behaviors could be facilitated with transport channels for photogenerated carriers, reactive substances, and abundant active sites for redox reactions, thus further improving photocatalytic performance. There are three types of methods to modify the pore structure of g-C3N4: hard-template method, soft-template method, and template-free method. Among them, the hard-template method may produce uniform and tunable pores, but requires toxic and environmentally hazardous chemicals to remove the template. In comparison, the soft templates could be removed at high temperatures during the preparation process without any additional steps. However, the soft-template method cannot strictly control the size and morphology of the pores, so prepared samples are not as orderly as the hard-template method. The template-free method does not involve any template, and the pore structure can be formed by designing precursors and exfoliation from bulk g-C3N4 (BCN). Without template support, there was no significant improvement in specific surface area (SSA). In this review, we first demonstrate the impact of pore structure on photoelectric performance. We then discuss pore modification methods, emphasizing comparison of their advantages and disadvantages. Each method’s changing trend and development direction is also summarized in combination with the commonly used functional modification methods. Furthermore, we introduce the application prospects of porous g-C3N4 in the subsequent studies. Overall, porous g-C3N4 as an excellent photocatalyst has a huge development space in photocatalysis in the future.

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A facile hydrothermal synthesis of few-layer oxygen-doped g-C3N4 with enhanced visible light-responsive photocatalytic activity

Cited by 54 publications

References 56 publications

Carbon Nitride Nanomaterials: Properties, Synthetic Approaches and New Insights in Fluorescence Spectrometry for Assaying of Metal Ions, Organic and Biomolecules

Carbon Nitride Nanomaterials: Properties, Synthetic Approaches and New Insights in Fluorescence Spectrometry for Assaying of Metal Ions, Organic and Biomolecules

Facile synthesis of carbon nitride quantum dots as a highly selective and sensitive fluorescent sensor for the tetracycline detection

g-C3N4: Properties, Pore Modifications, and Photocatalytic Applications

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