A Novel <scp>CdS</scp>/g‐<scp>C<sub>3</sub>N<sub>4</sub></scp> Composite Photocatalyst: Preparation, Characterization and Photocatalytic Performance with Different Reaction Solvents under Visible Light Irradiation

Ye, Xiangju; Dai, Xia; Meng, Sugang; Fu, Xianliang; Chen, Shifu

doi:10.1002/cjoc.201600251

Cited by 26 publications

(15 citation statements)

References 52 publications

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“…Afterwards, the synthetic route for CdS/g-C 3 N 4 hybrid photocatalysts was improved. [100] They were created via thermal polymerization and hydrothermal treatments using Cd(OAc) 2 · 2H 2 O, thioacetamide, and melamine as precursors. The obtained CdS/g-C 3 N 4 photocatalyst is effective and stable for the coupled reaction between selective oxidation of benzyl alcohols and reduction of nitrobenzene.…”

Section: Integrating Metal Sulfides With Emerging Materialsmentioning

confidence: 99%

Metal Sulfide Photocatalysis: Visible‐Light‐Induced Organic Transformations

2019

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metal sulfides belong to an important subgroup of semiconductor photocatalysts that could promote a variety of valuable redox reactions under mild conditions. One notable merit of metal sulfides is their relatively smaller bandgaps than metal oxides, which in turn make sure that many of them can directly utilize visible light. Historically, the deployment of metal sulfides for visible-light-induced organic transformations took place shortly after the genesis of the research field of heterogeneous photocatalysis. In this review, we primarily focus on recent state-of-the-art advancements of metal sulfide photocatalysis aimed at visible-light-induced selective organic transformations. Interests in this specific branch of photocatalysis have been rekindled due to the new methods for materials synthesis; the pursuit of new mechanisms; or the integration of metal sulfides with metal oxides, metal nanoparticles or other emerging materials. Thus we categorize them into four sections according to the different strategies in developing novel or more efficient organic processes. Binary and ternary metal sulfides, usually associated with new materials synthesis and mechanistic insights, can be used directly for visible-lightinduced organic transformations. This is the basis of other further developments and will be introduced firstly. Next, the cooperation between metal sulfides and metal oxides or metal nanoparticles can be conducive to many photocatalytic systems. These developments will be discussed in the next two ensuing sections. Furthermore, the integration of metal sulfides with recent developed emerging materials such as metalorganic frameworks (MOFs), graphene and graphitic carbon nitride (g-C 3 N 4 ) will be discussed in another section to highlight the importance of merging metal sulfides with these materials. We attempt to keep an impartial panorama of these four distinctive sections even though the phases of development are quite different among sections, leaving plenty of room for the future expansion of this burgeoning area.

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Section: Integrating Metal Sulfides With Emerging Materialsmentioning

confidence: 99%

Metal Sulfide Photocatalysis: Visible‐Light‐Induced Organic Transformations

2019

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“…[6] Scientists are always searching for new and abundant photocatalysts or adsorbents to degrade organic pollutants under visible light energy. [7] Graphitic carbon nitride (g-C 3 N 4 ) is the best-known visible light-driven photocatalyst. [8] It is applied in the decomposition of organic pollutants, [9] hydrogen production, [10] CO 2 photoreduction, [11] and water splitting.…”

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confidence: 99%

Microwave‐assisted synthesis of the Fe₂O₃/g‐C₃N₄ nanocomposites with enhanced photocatalytic activity for degradation of methylene blue

Karimi

Iliyat

Atashkadi

et al. 2020

J Chinese Chemical Soc

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The preparation and photocatalytic performance of the Fe 2 O 3 /g-C 3 N 4 nanocomposites with different weight percentage of iron was investigated in this study. Samples were successfully synthesized using melamine and ferric nitrate as the precursors via the green and facile microwave-assisted method. The physicochemical and structural properties of the Fe 2 O 3-doped g-C 3 N 4 were characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), the Brunauer-Emmett-Teller (BET) method, transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and ultraviolet-visible spectroscopy (UV-Vis). The photocatalytic activity of the Fe 2 O 3 /g-C 3 N 4 catalysts was evaluated by the degradation of methylene blue (MB) at room temperature under visible light irradiation. As expected, the assynthesized samples exhibited considerable improvement in the photodegradation of MB. The Fe 2 O 3 /g-C 3 N 4 (1.0 wt%) nanocomposite had superior photocatalytic activity, with almost 70% degradation efficiency within 90 min of irradiation. The enhanced performance was ascribed to the separation and migration of the photoinduced electron-hole pairs and taking part of the charge carriers in the chemical redox reactions at the surface of the photocatalyst. In this work, the effect of Fe weight percentage on the degradation potential was also studied, and the photocatalytic mechanism was proposed with the main reactive species •OH.

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“…[2] Recently,h eterogeneous photocatalysis has received much attentiona sa na lternation to conventional synthetic pathways of direct oxidation of alcohols to aldehydes. To date, al arge number of photocatalysts (e.g., TiO 2 ,[3] CeO 2 ,[4] CdS, [5] Bi 2 MoO 6 [6] )h ave been demonstrated to drive selectiveo xidation of alcohols with light in the presence of O 2 .H owever,t here are still somed rawbacks hampering their large-scale application, such as short electron/hole lifetimes,w eakv isible-light absorption, and limited modulation of chemicalc onfiguration of inorganic semiconductor photocatalysts.…”

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Modulating Crystallinity of Graphitic Carbon Nitride for Photocatalytic Oxidation of Alcohols

et al. 2017

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Exploiting efficient photocatalystsw ith strengtheneds tructure for solar-driven alcohol oxidation is of great significance. The photocatalytic performance of graphitic carbon nitrides can be considerably promoted by modulating its crystallinity.R esults confirmedt hat ah igh crystallinity accelerates the separation and transfer of photogenerated charge carriers, thus providing more free charges for photoredox reactions. More importantly, the high crystallinity facilitated the adsorption of benzyl alcohol and desorptiono fb enzaldehydea nd simultaneously lowered the energy barrierf or O 2 activation.A saresult,t he crystalline carbon nitride exhibited aroughlytwelvefold promotion with respectt ot he normalc arbon nitride. The remarkable enhancement of activity can be attributed to the synergistic effects of increased electron-hole separation and increased surface reactionk inetics. These findings will open up new opportunities to modulate the structure of polymers for aw ide variety of organic reactions.

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A Novel CdS/g‐C₃N₄ Composite Photocatalyst: Preparation, Characterization and Photocatalytic Performance with Different Reaction Solvents under Visible Light Irradiation

Cited by 26 publications

References 52 publications

Metal Sulfide Photocatalysis: Visible‐Light‐Induced Organic Transformations

Metal Sulfide Photocatalysis: Visible‐Light‐Induced Organic Transformations

Microwave‐assisted synthesis of the Fe₂O₃/g‐C₃N₄ nanocomposites with enhanced photocatalytic activity for degradation of methylene blue

Modulating Crystallinity of Graphitic Carbon Nitride for Photocatalytic Oxidation of Alcohols

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A Novel CdS/g‐C3N4 Composite Photocatalyst: Preparation, Characterization and Photocatalytic Performance with Different Reaction Solvents under Visible Light Irradiation

Cited by 26 publications

References 52 publications

Metal Sulfide Photocatalysis: Visible‐Light‐Induced Organic Transformations

Metal Sulfide Photocatalysis: Visible‐Light‐Induced Organic Transformations

Microwave‐assisted synthesis of the Fe2O3/g‐C3N4 nanocomposites with enhanced photocatalytic activity for degradation of methylene blue

Modulating Crystallinity of Graphitic Carbon Nitride for Photocatalytic Oxidation of Alcohols

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A Novel CdS/g‐C₃N₄ Composite Photocatalyst: Preparation, Characterization and Photocatalytic Performance with Different Reaction Solvents under Visible Light Irradiation

Microwave‐assisted synthesis of the Fe₂O₃/g‐C₃N₄ nanocomposites with enhanced photocatalytic activity for degradation of methylene blue