Synthesis of MoS 2 nanosheets loaded ZnO–g-C 3 N 4 nanocomposites for enhanced photocatalytic applications

Jo, Wan-Kuen; Lee, Joon Yeob; Selvam, N. Clament Sagaya

doi:10.1016/j.cej.2015.12.080

Cited by 119 publications

(21 citation statements)

References 45 publications

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“…To uncover the separation, transfer of photoinduced eletron-hole pairs at the interfaces of heterostrucures, photoluminescence (PL) spectra was collected to investigate the photogenerated electron-hole pairs separation and electron transfer performance between g-C 3 N 4 and ZnO. 34,35 The PL spectrum of pure g-C 3 N 4 , mixture of g-C 3 N 4 and ZnO, and g- C 3 N 4 /ZnO NRs heterostructure were characterized respectively (Fig. 7).…”

Section: Resultsmentioning

confidence: 99%

ZnO nanorod arrays grown on g-C₃N₄ micro-sheets for enhanced visible light photocatalytic H₂ evolution

et al. 2019

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Section: Resultsmentioning

confidence: 99%

ZnO nanorod arrays grown on g-C₃N₄ micro-sheets for enhanced visible light photocatalytic H₂ evolution

et al. 2019

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“…Meanwhile, the noble metal based oxides (e.g., RuO 2 , IrO x ), cost‐acceptable cobalt based species (e.g., CoO x , Co(II), Co(OH) 2 , Nocera Co–Pi), MnO x FeOOH, and NiOOH have been demonstrated to be excellent water‐oxidation co‐catalysts to boost the photocatalytic O 2 evolution over different semiconductors. Similarly, various possible co‐catalyst‐modification strategies, such as noble metals (Pt, Au, Ag), H 3 BO 3 , H 3 PO 4 , MoS 2 , graphene, Cu(II)/Fe(III) clusters, and their hybrids have been extensively employed to improve the O 2 adsorption and reduction on photocatalysts, thus facilitating more efficient capture of the photogenerated electrons for further improved photo‐degradation activities. In addition, the noble metals/alloys (Pt, Au, Ag, Pd, and Cu x Pt y ), earth‐abundant metal compounds (Cu 2 O, NiO x , Ni@NiO), graphene, complex, and their composites have been widely employed as co‐catalysts to improve the photocatalytic activity and selectivity for CO 2 reduction.…”

Section: Fundamental Mechanism Of Heterogeneous Photocatalysismentioning

confidence: 99%

Graphene in Photocatalysis: A Review

Wageh

et al. 2016

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In recent years, heterogeneous photocatalysis has received much research interest because of its powerful potential applications in tackling many important energy and environmental challenges at a global level in an economically sustainable manner. Due to their unique optical, electrical, and physicochemical properties, various 2D graphene nanosheets-supported semiconductor composite photocatalysts have been widely constructed and applied in different photocatalytic fields. In this review, fundamental mechanisms of heterogeneous photocatalysis, including thermodynamic and kinetics requirements, are first systematically summarized. Then, the photocatalysis-related properties of graphene and its derivatives, and design rules and synthesis methods of graphene-based composites are highlighted. Importantly, different design strategies, including doping and sensitization of semiconductors by graphene, improving electrical conductivity of graphene, increasing eloectrocatalytic active sites on graphene, strengthening interface coupling between semiconductors and graphene, fabricating micro/nano architectures, constructing multi-junction nanocomposites, enhancing photostability of semiconductors, and utilizing the synergistic effect of various modification strategies, are thoroughly summarized. The important applications including photocatalytic pollutant degradation, H production, and CO reduction are also addressed. Through reviewing the significant advances on this topic, it may provide new opportunities for designing highly efficient 2D graphene-based photocatalysts for various applications in photocatalysis and other fields, such as solar cells, thermal catalysis, separation, and purification.

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“…In addition to the above-mentioned methods, a more efficient solution is to construct a semiconductor-semiconductor heterojunction to enhance the separation efficiency of photo-generated carriers [36][37][38]. There are already plenty of methods for coupling g-C 3 N 4 with TiO 2 [39,40], CdS [41,42], ZnO [43,44], WO 3 [45,46] etc. to construct a heterojunction.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and photocatalytic activity of mesoporous g-C ₃ N ₄ /MoS ₂ hybrid catalysts

Liang

et al. 2018

R. Soc. open sci.

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The key to solving environmental and energy issues through photocatalytic technology requires highly efficient, stable and eco-friendly photocatalysts. Graphitic carbon nitride (g-C3N4) is one of the most promising candidates except for its limited photoactivity. In this work, a facile and scalable one-step method is developed to fabricate an efficient heterostructural g-C3N4 photocatalyst in situ coupled with MoS2. The strong coupling effect between the MoS2 nanosheets and g-C3N4 scaffold, numerous mesopores and enlarged specific surface area helped form an effective heterojunction. As such, the photocatalytic activity of the g-C3N4/MoS2 is more than three times higher than that of the pure g-C3N4 in the degradation of RhB under visible light irradiation. Improvement of g-C3N4/MoS2 photocatalytic performance is mainly ascribed to the effective suppression of the recombination of charge carriers.

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Synthesis of MoS 2 nanosheets loaded ZnO–g-C 3 N 4 nanocomposites for enhanced photocatalytic applications

Cited by 119 publications

References 45 publications

ZnO nanorod arrays grown on g-C₃N₄ micro-sheets for enhanced visible light photocatalytic H₂ evolution

ZnO nanorod arrays grown on g-C₃N₄ micro-sheets for enhanced visible light photocatalytic H₂ evolution

Graphene in Photocatalysis: A Review

Synthesis and photocatalytic activity of mesoporous g-C ₃ N ₄ /MoS ₂ hybrid catalysts

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Synthesis of MoS 2 nanosheets loaded ZnO–g-C 3 N 4 nanocomposites for enhanced photocatalytic applications

Cited by 119 publications

References 45 publications

ZnO nanorod arrays grown on g-C3N4 micro-sheets for enhanced visible light photocatalytic H2 evolution

ZnO nanorod arrays grown on g-C3N4 micro-sheets for enhanced visible light photocatalytic H2 evolution

Graphene in Photocatalysis: A Review

Synthesis and photocatalytic activity of mesoporous g-C 3 N 4 /MoS 2 hybrid catalysts

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Product

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ZnO nanorod arrays grown on g-C₃N₄ micro-sheets for enhanced visible light photocatalytic H₂ evolution

ZnO nanorod arrays grown on g-C₃N₄ micro-sheets for enhanced visible light photocatalytic H₂ evolution

Synthesis and photocatalytic activity of mesoporous g-C ₃ N ₄ /MoS ₂ hybrid catalysts