Enhanced visible-light photoactivity of g-C3N4 via Zn2SnO4 modification

Zhang, Lihong; Wang, Xiaoxing; Nong, Qingyan; Lin, Hongjun; Teng, Botao; Zhang, Yuting; Zhao, Leihong; Wu, Tinghua; He, Yiming

doi:10.1016/j.apsusc.2014.12.154

Cited by 54 publications

(13 citation statements)

References 34 publications

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“…This indicates that the BET surface area is not directly related to the photocatalytic activity. Similar observations were also made for a number of other photocatalysts based on heterojunctions of g-C 3 N 4 with compounds such as Zn 2 SnO 4 [21], CdIn 2 S 4 [22], silver halides [23], SmVO 4 [24] or CaIn 2 S 4 [11]. In these cases, enhanced photoactivities have been ascribed to improved stability of separated charge carriers and/or to improved light absorption in the composites.…”

Section: Characterization Of As-prepared and Used Catalystssupporting

confidence: 56%

Relations between Structure, Activity and Stability in C3N4 Based Photocatalysts Used for Solar Hydrogen Production

et al. 2018

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Solar hydrogen production from water could be a sustainable and environmentally friendly alternative to fossil energy carriers, yet so far photocatalysts active and stable enough for large-scale applications are not available, calling for advanced research efforts. In this work, H 2 evolution rates of up to 1968 and 5188 µmol h −1 g −1 were obtained from aqueous solutions of triethanolamine (TEOA) and oxalic acid (OA), respectively, by irradiating composites of AgIn 5 S 8 (AIS), mesoporous C 3 N 4 (CN, surface area >150 m 2 /g) and ≤2 wt.% in-situ photodeposited Pt nanoparticles (NPs) with UV-vis (≥300 nm) and pure visible light (≥420 nm). Structural properties and electron transport in these materials were analyzed by XRD, STEM-HAADF, XPS, UV-vis-DRS, ATR-IR, photoluminescence and in situ-EPR spectroscopy. Initial H 2 formation rates were highest for Pt/CN, yet with TEOA this catalyst deactivated by inclusion of Pt NPs in the matrix of CN (most pronounced at λ ≥ 300 nm) while it remained active with OA, since in this case Pt NPs were enriched on the outermost surface of CN. In Pt/AIS-CN catalysts, Pt NPs were preferentially deposited on the surface of the AIS phase which prevents them from inclusion in the CN phase but reduces simultaneously the initial H 2 evolution rate. This suggests that AIS hinders transport of separated electrons from the CN conduction band to Pt NPs but retains the latter accessible by protons to produce H 2 .

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Section: Characterization Of As-prepared and Used Catalystssupporting

confidence: 56%

Relations between Structure, Activity and Stability in C3N4 Based Photocatalysts Used for Solar Hydrogen Production

et al. 2018

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“…This decrease could be related to aggregation of the loaded particles at higher contents, leading to decrease in formation of heterojunctions between g-C 3 N 4 sheets and ZnO/AgCl particles. Hence, similar to many g-C 3 N 4 -based nanocomposites, transfer of the photogenerated electrons from the g-C 3 N 4 to ZnO/AgCl particles and separation of the charge carriers partially reduced at higher content of ZnO/AgCl, resulting in a decreased activity [38][39][40][41][42].…”

Section: Page 11 Of 24mentioning

confidence: 99%

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

Akhundi

Habibi‐Yangjeh

2015

Applied Surface Science

128

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“…In recent years, semiconductor-based photocatalysis has aroused much interest to address the issues of environmental organic pollution and energy crisis, owing to its 'green' nature [1][2][3][4]. A large number of semiconductor photocatalysts, such as TiO 2 , ZnO, Ta 2 O 5 etc, have been extensively investigated.…”

Section: Introductionmentioning

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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Enhanced visible-light photoactivity of g-C3N4 via Zn2SnO4 modification

Cited by 54 publications

References 34 publications

Relations between Structure, Activity and Stability in C3N4 Based Photocatalysts Used for Solar Hydrogen Production

Relations between Structure, Activity and Stability in C3N4 Based Photocatalysts Used for Solar Hydrogen Production

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

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

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