Enhanced photocatalytic activities of g-C3N4 with large specific surface area via a facile one-step synthesis process

Feng, Deqiang; Cheng, Yahui; He, Jie; Zheng, Lingcheng; Shao, Dawei; Wang, Weichao; Wang, Weihua; Lu, Feng; Dong, Hong; Liu, Hui; Zheng, Rongkun

doi:10.1016/j.carbon.2017.09.084

Cited by 105 publications

(47 citation statements)

References 47 publications

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“…As depicted in Fig. 4a, the minor (1 0 0) peak corresponds to the in-plane repeated tri-striazine units, while the main peak (0 0 2) is relevant to the interlayer stacking of the conjugated aromatic segments [47]. Compared with pure g-C 3 N 4 , the (1 0 0) diffraction peak totally disappeared in the hybrids, while the intensity of (0 0 2) peak showed a gradual decrease until it was significantly weakened in Hybrid I.…”

Section: Resultsmentioning

confidence: 99%

“…4d), the N 1s peak of g-C 3 N 4 was decomposed into three components at 398.7, 399.3, and 400.9 eV, corresponding to sp 2 -hybridized nitrogen (C@NAC, edge N atoms), tertiary nitrogen (NA(C) 3 , inner and bridge N atoms) and amino functional groups (C@NAH) caused by incomplete condensation, respectively (Fig. 5a) [47]. Similar results were also noticed with Hybrid I, but it was notable that the N 1s peak of Hybrid I moved to a lower binding energy (C@NAC at 398.3 eV, and C@NAH at 400.5 eV) when compared with that of pure g-C 3 N 4 .…”

Section: Resultsmentioning

confidence: 99%

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Facile synthesis of bimodal macroporous g-C3N4/SnO2 nanohybrids with enhanced photocatalytic activity

Chen

Jiang

et al. 2019

Science Bulletin

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Facile synthesis of bimodal macroporous g-C3N4/SnO2 nanohybrids with enhanced photocatalytic activity

Chen

Jiang

et al. 2019

Science Bulletin

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“…Pt and Pd atoms trapped between g‐C 3 N 4 layers act as bridges that facilitate the charge carrier transfer between the layers (interlayer charge transfer). A drawback of g‐C 3 N 4 is its low specific surface area, usually around 10 m 2 /g . To overcome this inconvenient, the same research group expanded the surface area of the catalyst by coating mesoporous silica (SBA‐15) with nanometre thin Fe‐g‐C 3 N 4 layers .…”

Section: Catalysis With Single Atom Catalysts On Carbon‐based Materialsmentioning

confidence: 99%

Single Atom Catalysts on Carbon‐Based Materials

2018

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Metal particle size is an important parameter to consider when looking at supported catalyst performances. As for other properties, surface reactivity of metallic nanoparticles is thus highly size‐dependent. The smallest size that can be reached for this type of object is of course the isolated atom deposited on a support. The preparation of single‐atom catalysts (SAC) is not trivial, since to avoid clustering, the mean adsorption energy of the metal on the support should be higher than its cohesive energy. The choice of a support that allows a strongly interacting environment with the metal is therefore a key step in the preparation of such catalysts. The spectrum of carbon (nano)materials is very broad, and their structure as well as their surface chemistry, although sometime complex, can be tuned and exploited for the stabilization of SAC. This Review summarizes in a comprehensive manner experimental and computational studies aiming at: i) preparing SAC on carbon materials, ii) understanding the metal‐support interactions in SAC, and iii) studying how this relates to catalytic performances. The use of SAC follows well the needs dictated by society (energy and environment issues), and many studies have already been published in various fields, such as thermal catalysis, photocatalysis and electrocatalysis.

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“…The absorption peaks at 1200-1600 cm −1 are assigned to stretching vibration of CN heterocyclic [39]. The peak at 890 cm −1 is related to deformation mode of N-H components [39]. The peak at 802 cm −1 is due to vibration of s-triazine units, indicating complete skeleton g-structure of g-C 3 N 4 for all three samples [25].…”

Section: Characterization Of G-c 3 N 4 Nanosheetsmentioning

confidence: 90%

“…The broad peaks located at 3250 and 3078 cm −1 are assigned to O-H and N-H bands, related to residual N-H groups and adsorbed H 2 O molecules [38]. The absorption peaks at 1200-1600 cm −1 are assigned to stretching vibration of CN heterocyclic [39]. The peak at 890 cm −1 is related to deformation mode of N-H components [39].…”

Section: Characterization Of G-c 3 N 4 Nanosheetsmentioning

confidence: 99%

Developing a new method for synthesizing amine functionalized g-C3N4 nanosheets for application as anti-corrosion nanofiller in epoxy coatings

Pourhashem¹,

Rashidi²,

Alaei³

et al. 2018

SN Appl. Sci.

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In this research, the effect of graphitic carbon nitride (g-C 3 N 4) on the corrosion protection performance of solvent-based epoxy coatings is investigated. The g-C 3 N 4 is synthesized by two-step condensation of melamine and is characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, and carbon-hydrogennitrogen elemental analysis. In order to enhance the dispersion of g-C 3 N 4 in epoxy coating, it is chemically functionalized with ethylenediamine vapor via a simple method. Further, epoxy coatings containing different amounts (0, 0.05, 0.1, 0.3, 0.5, and 0.7 wt%) of amine functionalized g-C 3 N 4 (AF g-C 3 N 4) are spray coated on mild steel substrate. The dispersion quality of nanofillers in coating matrix is studied by field emission scanning electron microscopy. The corrosion resistance of samples is investigated by electrochemical impedance spectroscopy. The results reveal the superior corrosion protection of nanocomposite coatings due to barrier performance of AF g-C 3 N 4. Meanwhile, epoxy coating containing 0.5 wt% AF g-C 3 N 4 shows the highest corrosion protection compared to pure epoxy sample. Keywords g-C 3 N 4 • Amine functionalization • Nanocomposite epoxy coating • Corrosion

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Enhanced photocatalytic activities of g-C3N4 with large specific surface area via a facile one-step synthesis process

Cited by 105 publications

References 47 publications

Facile synthesis of bimodal macroporous g-C3N4/SnO2 nanohybrids with enhanced photocatalytic activity

Facile synthesis of bimodal macroporous g-C3N4/SnO2 nanohybrids with enhanced photocatalytic activity

Single Atom Catalysts on Carbon‐Based Materials

Developing a new method for synthesizing amine functionalized g-C3N4 nanosheets for application as anti-corrosion nanofiller in epoxy coatings

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