Silver cyanamide nanoparticles decorated ultrathin graphitic carbon nitride nanosheets for enhanced visible-light-driven photocatalysis

Jia, Baoping; Zhao, Wei; Fan, Linggang; Yin, Geping; Cheng, Yuan; Huang, Fuqiang

doi:10.1039/c7cy02325a

Cited by 20 publications

(18 citation statements)

References 47 publications

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“…[ 38,39 ] The visible‐light photocatalytic activity of Ag 2 NCN was firstly reported by Huang et al in 2013, [ 38 ] and they also loaded Ag 2 NCN nanoparticles on ultrathin carbon nitride (g‐C 3 N 4 ) nanosheets to degrade methyl orange (MO) and methylene blue (MB) under visible light irradiation. [ 40 ] In our previous works, [ 41,42 ] the hybrid compounds based on Ag 2 NCN exhibited rather higher photocatalytic activities in water splitting and organics photodegradation.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic active silver organic framework: Ag(I)‐MOF and its hybrids with silver cyanamide

Song

Wang

Shi

et al. 2020

Applied Organom Chemis

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Probing into the new heterostructure based on metal–organic frameworks (MOFs) and optimizing their photocatalytic efficiency under solar energy irradiation are one of hot topics in extending applications of MOFs in photocatalytic technology. Inspired by the excellent visible‐light responses and photocatalytic activities of inorganic silver salts, in this work, we focused on the construction of hybrid photocatalysts involving Ag‐MOF and silver cyanamide (Ag2NCN). Two opposite in situ synthesis routes were adopted, which are hydrothermally producing Ag‐MOF in the presence of Ag2NCN (route A) or precipitating Ag2NCN in the existence of Ag‐MOF (route B), and the mass ratio of Ag2NCN vs. Ag‐MOF was optimized. The morphology and structure character show that the synthetic routes have no obvious influences on the crystal structure, but change the morphology and size of final hybrid photocatalysts. The photocatalytic degradation of Rhodamine B under simulated solar energy has been tested to evaluate the photocatalytic activities for resulting hybrids. Compared to single Ag‐MOF and Ag2NCN, the enhanced photocatalytic rates are represented by the hybrids. The electrochemical analyses and the active species trapping experiments were conducted to clarify the photocatalytic mechanism for resulting hybrids. The good recycling photocatalytic results indicate the prospect applications of Ag‐MOF based hybrid photocatalysts.

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Section: Introductionmentioning

confidence: 99%

Photocatalytic active silver organic framework: Ag(I)‐MOF and its hybrids with silver cyanamide

Song

Wang

Shi

et al. 2020

Applied Organom Chemis

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“…Theoretically, silver cyanamide (Ag 2 NCN) should demonstrate good visible-light response and high photocatalytic performance, and these properties have been conrmed by the previous reports. [19][20][21][22] In general, the 2p orbital energy levels of C and N atoms in Ag 2 NCN are higher than those of O atoms in silver oxide, and the valence band energy level formed by the hybridization of the 2p orbitals of C and N atoms is further elevated. As a result, the bandgap for Ag 2 NCN will become narrower under the premise that the band energy level remains unchanged compared with that of silver oxide.…”

Section: Introductionmentioning

confidence: 99%

“…So far, however, the reports on the synthesis and photocatalytic performances of Ag 2 NCN with different morphologies are still limited. In addition, silver cyanamide is mainly used in the degradation of dyes; 19,20 however, its application in the degradation of antibiotics has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Nanorod bundle-like silver cyanamide nanocrystals for the high-efficiency photocatalytic degradation of tetracycline

Cao

Zhang

et al. 2021

RSC Adv.

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“…The key to this process is to find and design efficient photocatalysts. At present, the photocatalytic materials are mainly inorganic semiconductors, such as TiO 2 , ZnO, and CdS . Their application in real life is greatly limited, due to their low light conversion efficiency and the difficulty in structural modification .…”

Section: Introductionmentioning

confidence: 99%

“…At present, the photocatalytic materials are mainly inorganic semiconductors, such as TiO 2 , [49][50][51][52][53][54][55] ZnO, [56][57][58] and CdS. [59][60][61][62] Their application in real life is greatly limited, due to their low light conversion efficiency [63][64][65] and the difficulty in structural modification. [66][67][68] It is necessary to develop new types of photocatalyst.…”

Section: Introductionmentioning

confidence: 99%

Strategies for Improving the Performance and Application of MOFs Photocatalysts

Luo

Wu³

et al. 2019

ChemCatChem

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Residual pollutants in the water treatment process restrict the advanced treatment and purification of wastewater, because most of them have stable structures, and some are not easily to be enriched. Photocatalytic oxidation technology can directly use solar energy to drive a series of chemical reactions, which has advantages such as low energy consumption, mild reaction conditions and rarely secondary pollution. It is an effective way to solve the organic pollution problem in wastewater treatment. The key to this process is to find and design efficient photocatalysts. The current photocatalytic materials mainly include inorganic semiconductors and metal organic frameworks (MOFs). They have been studied for pollutants degradation, hydrogen evolution, CO2 reduction, and organic transformation. But, most of these catalysts have not been used in real application. In this paper, recent research advances in MOFs photocatalysts and the key factors affecting their photocatalytic efficiency were critically reviewed. It is believed that the pursuit of more efficient photocatalyst needs to be considered from the adsorption‐photocatalytic mechanism, redox‐free radical mechanism, valence‐level regulation mechanism and energy transfer mechanism of photocatalysis. It is very necessary to research and develop nanoscale and quantum level mixed valence MOFs photocatalysts, which are constructed by strong electron‐donating groups.

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Silver cyanamide nanoparticles decorated ultrathin graphitic carbon nitride nanosheets for enhanced visible-light-driven photocatalysis

Abstract: Silver cyanamide nanoparticle decorated carbon nitride nanosheets are synthesized to build up a type-II semiconductor heterojunction for visible-light-driven photocatalysis.

Cited by 20 publications

References 47 publications

Photocatalytic active silver organic framework: Ag(I)‐MOF and its hybrids with silver cyanamide

Photocatalytic active silver organic framework: Ag(I)‐MOF and its hybrids with silver cyanamide

Nanorod bundle-like silver cyanamide nanocrystals for the high-efficiency photocatalytic degradation of tetracycline

Strategies for Improving the Performance and Application of MOFs Photocatalysts

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