Photodegradation performance of methylene blue aqueous solution on Ag/g-C3N4 catalyst

Meng, Yali; Ju, Sheng; Chen, Dan; Xu, Gang

doi:10.1007/s12598-011-0284-7

Cited by 45 publications

(12 citation statements)

References 16 publications

(20 reference statements)

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“…Semiconductor photocatalysis is an effective and economic strategy to deal with the environmental problems caused by organic pollutants. Due to the unique electronic structure and physicochemical properties, g‐C 3 N 4 has been widely used for the photocatalytic degradation of various contaminants, including methyl orange (MO), rhodamine B (RhB), methylene blue (MB), aromatic compounds, aldehydes, and so on. The removal of inorganic toxic gas NO in air and the reduction of heavy metal ion Cr(VI) have also been investigated.…”

Section: Application Of G‐c3n4‐based Photocatalystsmentioning

confidence: 99%

Polymeric Photocatalysts Based on Graphitic Carbon Nitride

et al. 2015

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Semiconductor-based photocatalysis is considered to be an attractive way for solving the worldwide energy shortage and environmental pollution issues. Since the pioneering work in 2009 on graphitic carbon nitride (g-C3N4) for visible-light photocatalytic water splitting, g-C3N4 -based photocatalysis has become a very hot research topic. This review summarizes the recent progress regarding the design and preparation of g-C3N4 -based photocatalysts, including the fabrication and nanostructure design of pristine g-C3N4 , bandgap engineering through atomic-level doping and molecular-level modification, and the preparation of g-C3N4 -based semiconductor composites. Also, the photo-catalytic applications of g-C3N4 -based photocatalysts in the fields of water splitting, CO2 reduction, pollutant degradation, organic syntheses, and bacterial disinfection are reviewed, with emphasis on photocatalysis promoted by carbon materials, non-noble-metal cocatalysts, and Z-scheme heterojunctions. Finally, the concluding remarks are presented and some perspectives regarding the future development of g-C3N4 -based photocatalysts are highlighted.

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Section: Application Of G‐c3n4‐based Photocatalystsmentioning

confidence: 99%

Polymeric Photocatalysts Based on Graphitic Carbon Nitride

et al. 2015

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“…Transition metals, such as Fe [20,21], Cu [22], Ta [23], Co [24], and Ag [25,26] were also deposited onto g-C 3 N 4 to form novel organic-inorganic composites, which strongly tuned the optical, electrical and chemical properties of g-C 3 N 4, and then dramatically enhanced the photocatalysis. Yan et al [27] reported that B-doped g-C 3 N 4 could enhance the photodegradation of rhodamine B under visible light.…”

Section: Introductionmentioning

confidence: 99%

Metal-free graphene-carbon nitride hybrids for photodegradation of organic pollutants in water

Duan

Sun

et al. 2015

Catalysis Today

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Hybrid photocatalysts of graphitic carbon nitride (g-C 3 N 4) and reduced graphene oxide (rGO) composites were prepared in one-pot via a thermal condensation of melamine with different amounts of graphene oxide (GO). As metal-free hybrids, the prepared photocatalysts presented enhanced performances in photooxidation of both methylene blue and phenol in water solutions under various light irradiations. The level of rGO significantly affected MB photodegradation efficiencies. The introduced graphene can improve the MB adsorption and optical absorption in visible light region, therefore enables the hybrids to efficiently degrade MB under visible light with wavelengths longer than 430 nm. The metal-free photocatalysts were also able to degrade phenol effectively and the effects of catalyst loading and initial phenol concentration were investigated. This study provided an efficient and environmentally benign photocatalyst for degradation of organic pollutants in water, with complete prevention of secondary contamination from metal-leaching.

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“…These shortcomings make it unable to stand alone in the eld of photocatalysis. For this reason, researchers have tried many methods to improve the photocatalytic activity of g-C 3 N 4 .Such as element doping [18,19], precious metal deposition [20,21], and semiconductor compounding [22,23]. At present, two-dimensional (2D) materials can be used in many places, including the eld of photocatalysis by their super large speci c surface area and suitable forbidden band width.…”

Section: Introductionmentioning

confidence: 99%

Preparation of g-C3N4/MoS2 Composite Material and Its Visible Light Catalytic Performance

Fan

Yang

Ding

2021

J Inorg Organomet Polym

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The g-C 3 N 4 nanosheet was prepared by calcination method, the MoS 2 nanosheet was prepared by hydrothermal method. The g-C 3 N 4 /MoS 2 composites were prepared by ultrasonic composite in anhydrous ethanol. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible spectroscopy (UV-Vis), and photoluminescence (PL) techniques were used to characterize the materials. The photocatalytic degradation of Rhodamine B (Rh B) by g-C 3 N 4 /MoS 2 composites with different mass ratios was investigated under visible light. The results show that a small amount of MoS 2 combined with g-C 3 N 4 can signi cantly improve photocatalytic activity. The g-C 3 N 4 /MoS 2 composite with a mass ratio of 1:8 has the highest photocatalytic activity, and the degradation rate of Rh B increases from 50% to 99.6%. The main reason is that MoS 2 and g-C 3 N 4 have a matching band structure. The separation rate of photogenerated electron-hole pairs is enhanced. So the g-C 3 N 4 /MoS 2 composite can improve the photocatalytic activity. The photocatalytic mechanism was proposed through the active matter capture experiment.

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Photodegradation performance of methylene blue aqueous solution on Ag/g-C3N4 catalyst

Cited by 45 publications

References 16 publications

Polymeric Photocatalysts Based on Graphitic Carbon Nitride

Polymeric Photocatalysts Based on Graphitic Carbon Nitride

Metal-free graphene-carbon nitride hybrids for photodegradation of organic pollutants in water

Preparation of g-C3N4/MoS2 Composite Material and Its Visible Light Catalytic Performance

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