Ternary g-C3N4/ZnO/AgCl nanocomposites: Synergistic collaboration on visible-light-driven activity in photodegradation of an organic pollutant

Akhundi, Anise; Habibi‐Yangjeh, Aziz

doi:10.1016/j.apsusc.2015.08.149

Cited by 124 publications

(35 citation statements)

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“…The close contact between the two components is conducive to the charge transfer across their interface. Akhundi and Habibi Yangjeh [147] con structed ternary gC 3 N 4 /ZnO/AgCl nanocomposites for the photodegradation of organic pollutant. As shown in Figure 4d, due to the suitable band alignment between gC 3 N 4 and BiOI, the photogenerated charge carriers can be efficiently separated.…”

Section: G-c 3 N 4 -Based Conventional Type II Heterojunction Systemsmentioning

confidence: 99%

“…As a result, this gC 3 N 4 based ternary composite possessed an enhanced photocatalytic activity under vis ible and/or NIR light. Akhundi and Habibi Yangjeh [147] con structed ternary gC 3 N 4 /ZnO/AgCl nanocomposites for the photodegradation of organic pollutant. Figure 5a shows the schematic diagram for the facile and largescale preparation of the gC 3 ZnO/g-C 3 N 4 Photodegradation of MO and p-nitrophenol Three times higher than g-C 3 N 4 (MO), six times higher than g-C 3 N 4 (p-nitrophenol) [89] ZnO/g-C 3 NiFe-LDH/g-C 3 N 4 Photocatalytic hydrogen and oxygen generation / [166] www.advancedsciencenews.com ( Figure 5b) indicate that the gC 3 N 4 /ZnO/AgCl composite has lower recombination probability of the photogenerated charge carriers compared with pure gC 3 N 4 and the binary composites.…”

Section: G-c 3 N 4 -Based Conventional Type II Heterojunction Systemsmentioning

confidence: 99%

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g‐C₃N₄‐Based Heterostructured Photocatalysts

Wang

Jiang

et al. 2017

Advanced Energy Materials

2,100

937

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Thereafter, the photocatalytic degrada tion of polychlorobiphenyls [2] and photo electrocatalytic reduction of CO 2 into hydrocarbon compounds [3] in aqueous semiconductor suspensions greatly broad ened the applications of photocatalysis. Although the photocatalytic technology has got worldwide attention for its eco nomic, clean, safe, and renewable charac teristics, the photocatalytic performance of currently known photocatalysts is still far from commercial applications, especially in solartofuel conversion. [4][5][6][7][8][9][10][11] Generally, the photocatalytic reactions can be divided into three basic processes. First, the semiconductor photocatalysts absorb effective photons whose energy (h v ) is equal to or above their bandgap (E g ), resulting in the generation of electronhole pairs. Second, the photogenerated charge carriers separate and transfer to the surface of photocatalysts. Third, the photogenerated electrons and holes partic ipate in reactions of substances adsorbed on the surface of the photocatalysts. [12,13] Thus, the improvements of the three aforementioned processes play impor tant roles in enhancing the photocatalytic performance. Light absorption is the first essential step of photocatalysis process. The traditional anatase phase TiO 2 photocatalyst is active only under UV light with wavelength below 387 nm due to its wide bandgap (3.2 eV). However, solar energy is mainly concentrated in the visible light region, and UV light accounts for less than 4% of the solar spectrum. [7] In order to achieve maximum utilization efficiency of solar energy, the exploration of visiblelightresponsive photo catalysts is an urgent task. Graphitic carbon nitride (gC 3 N 4 ) as a promising visiblelightresponsive photocatalyst has received worldwide attention due to its fascinating merits, such as moderate bandgap (≈2.7 eV), proper electronic band structure, nontoxicity, low cost, good stability, and easy preparation. [14][15][16][17][18] Since the first report on photocatalytic H 2 evolution over gC 3 N 4 by Wang et al. in 2009, [19] research endeavors toward improving the photocatalytic performance of gC 3 N 4 based photocatalysts have formed a forefront of photocatalysis research. [20][21][22][23][24][25] Bulk gC 3 N 4 powder can be prepared by the thermal poly condensation of lowcost nitrogencontaining organic pre cursors, e.g., urea, thiourea, melamine, cyanamide, dicyan diamide, guanidine hydrochloride, and so on. [26][27][28][29][30][31][32] The pure bulk gC 3 N 4 prepared by this method suffers from several shortcomings, including low specific surface area, insufficient visible light utilization, and, particularly, rapid recombination Photocatalysis is considered as one of the promising routes to solve the energy and environmental crises by utilizing solar energy. Graphitic carbon nitride (g-C 3 N 4 ) has attracted worldwide attention due to its visible-light activity, facile synthesis from low-cost materials, chemical stability, and unique layered structure. However, the pure g-C 3 N 4 photocatalys...

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Section: G-c 3 N 4 -Based Conventional Type II Heterojunction Systemsmentioning

confidence: 99%

Section: G-c 3 N 4 -Based Conventional Type II Heterojunction Systemsmentioning

confidence: 99%

g‐C₃N₄‐Based Heterostructured Photocatalysts

Wang

Jiang

et al. 2017

Advanced Energy Materials

2,100

937

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“…The peaks at 1241, 1323, 1409, and 1568 cm −1 correspond to aromatic C-N stretching vibrations, while the peak at 1638 cm -1 is related to the typical stretching vibration mode of the C=N [37][38]. The broad band centered at 3217 cm −1 is related to the N-H stretching vibration of residual amine with the sp 2 -hybridized carbon and intermolecular hydrogen-bonding interactions [39].…”

Section: Characterization Of As-prepared Samplesmentioning

confidence: 99%

Construction of stable Ta 3 N 5 /g-C 3 N 4 metal/non-metal nitride hybrids with enhanced visible-light photocatalysis

Jiang

Chen

et al. 2017

Applied Surface Science

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2017) Construction of stable Ta3N5/g-C3N4 metal/non-metal nitride hybrids with enhanced visible-light photocatalysis. Applied Surface Science, 391, pp. 392-403. (doi:10.1016Science, 391, pp. 392-403. (doi:10. /j.apsusc.2016 This is the author's final accepted version.There may be differences between this version and the published version. You are advised to consult the publisher's version if you wish to cite from it.http://eprints.gla.ac.uk/123441/ AbstractIn this paper, a novel Ta The Ta 3 N 5 /g-C 3 N 4 hybrid nitride exhibited excellent photostability and reusability.The possible mechanism for improved photocatalytic performance was proposed.Overall, this work may provide a facile way to synthesize the highly efficient metal/metal-free hybrid nitride photocatalysts with promising applications in environmental purification and energy conversion.

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“…In AgBr-supported metal-free g-C 3 N 4 -decorated Nitrogendoped graphene (CN) ternary nanocomposites (ACNNG-x), Z-scheme heterogeneous structure consisting of AgBr and CN with different energy level has been proved to be an effective 2 Deposition Photodegradation of organic pollutants [292] rule to photocatalytic degradation of MO and CO 2 photoreduction under visible light [299][300][301][302][303][304][305]. Two charge carriers separation mechanisms were involved in this system before and after the generation of metallic Ag 0 nanoparticles.…”

Section: Other Photoactive Semiconductormentioning

confidence: 99%

Regulations of silver halide nanostructure and composites on photocatalysis

Fan

Han

Song

et al. 2017

Adv Compos Hybrid Mater

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The silver halides and their corresponding composites would constitute remarkable photocatalytic systems not only in energy production but also in environmental remediation. The major advantage in these silver halides system is that plasma metal Ag 0 species would be spontaneously generated by silver halides under light irradiation, which play dual roles of expanding light absorption range and charge carriers separation. In this tutorial review, the origin and development of silver halides, synthesis methods, construction of composite structures with other materials, photocatalytic applications, and various and controversial mechanisms are all exhaustively described.

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Ternary g-C3N4/ZnO/AgCl nanocomposites: Synergistic collaboration on visible-light-driven activity in photodegradation of an organic pollutant

Cited by 124 publications

References 53 publications

g‐C₃N₄‐Based Heterostructured Photocatalysts

g‐C₃N₄‐Based Heterostructured Photocatalysts

Construction of stable Ta 3 N 5 /g-C 3 N 4 metal/non-metal nitride hybrids with enhanced visible-light photocatalysis

Regulations of silver halide nanostructure and composites on photocatalysis

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Ternary g-C3N4/ZnO/AgCl nanocomposites: Synergistic collaboration on visible-light-driven activity in photodegradation of an organic pollutant

Cited by 124 publications

References 53 publications

g‐C3N4‐Based Heterostructured Photocatalysts

g‐C3N4‐Based Heterostructured Photocatalysts

Construction of stable Ta 3 N 5 /g-C 3 N 4 metal/non-metal nitride hybrids with enhanced visible-light photocatalysis

Regulations of silver halide nanostructure and composites on photocatalysis

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Product

Resources

About

g‐C₃N₄‐Based Heterostructured Photocatalysts

g‐C₃N₄‐Based Heterostructured Photocatalysts