Polypyrrole/ZnIn2S4 composite photocatalyst for enhanced mineralization of chloramphenicol under visible light

Gao, Bo; Chen, Weiping; Dong, Shaonan; Liu, Jiadong; Liu, Tingting; Wang, Lei; Sillanpää, Mika

doi:10.1016/j.jphotochem.2017.09.018

Cited by 37 publications

(10 citation statements)

References 40 publications

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“…Furthermore, PPy is cost‐effective, non‐toxic, and has good environmental stability 11,13 . Due to its extended π‐conjugated electron system, PPy shows flexible and tunable properties such as being an effective electron transporter and holes acceptor 14,15 . However, the wide bandgap (2.9–3.2 eV) 16–18 of pure PPy nanoparticles means that they have a high rate of the photogenerated hole and electron recombination.…”

Section: Introductionmentioning

confidence: 99%

“…11,13 Due to its extended π-conjugated electron system, PPy shows flexible and tunable properties such as being an effective electron transporter and holes acceptor. 14,15 However, the wide bandgap (2.9-3.2 eV) [16][17][18] of pure PPy nanoparticles means that they have a high rate of the photogenerated hole and electron recombination. Defeating photogenerated charges recombination is a significant way to improve the catalytic performance.…”

Section: Introductionmentioning

confidence: 99%

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High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

Pang

Arsad

Ahmadipour

et al. 2022

Polymers for Advanced Techs

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Over the years, there has been an emphasis on the improvement of novel materials for photocatalytic processes for practical application in treating wastewater. In this sense, the ultrasonic-assisted in-situ chemical polymerization route was used to synthesize polypyrrole-multiwall carbon nanotubes (PPy-MWCNTs) nanocomposites. The transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet visible (UV-vis) analysis were employed to study the impact of MWCNTs on the properties of PPy. TEM showed that the PPy-MWCNTs nanocomposites consist of spherical PPy with 80 nm particle size, while the MWCNTs showed inner and outer diameters of 7 nm and 13 nm, respectively. XRD analysis showed that the crystallinity of the PPy increased with MWCNTs loading. The potential of PPy-MWCNTs nanocomposites as photocatalysts was evaluated via the photodegradation of rhodamine B (RhB) and methylene blue (MB) dyes. The photodegradation efficiency was found to have improved with increasing MWCNTs loading. Almost 99.36% and 78.30% of RhB and MB dye degradation were achieved after 35 min of reaction for the highest loading of MWCNTs. The remarkable nanocomposite photocatalytic activity was attributed to the optical bandgap energy (E g ) reduction with the addition of MWCNTs. These results foreshadow the potential use of the PPy-MWCNTs nanocomposites for water purification.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

Pang

Arsad

Ahmadipour

et al. 2022

Polymers for Advanced Techs

View full text Add to dashboard Cite

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“…[39] Studies on the establishment of heterophase junctions between cubic ZIS and hexagonal ZIS have been reported. [39][40][41][42] Wang et al prepared cubic QD/hexagonal ZIS heterophase junction for photocatalytic H 2 evolution. [40] Surprisingly, the ZIS heterophase junction showed a significantly enhanced photocatalytic hydrogen generation rate of 114.2 μmol h À1 , which is about 3.2 and 7.3 times higher than that of the single phases of hexagonal and cubic ZIS, respectively.…”

Section: Crystal Structures Optical Propertiesmentioning

confidence: 99%

A Review and Recent Developments in Full‐Spectrum Photocatalysis using ZnIn₂S₄‐Based Photocatalysts

et al. 2021

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Nowadays, photocatalytic technology is considered as one of the most efficient methods to solve the problem of the global energy shortage and the pollution of the environment. Among these outstanding photocatalysts, metal sulfide‐based semiconductors have attracted wide attention because of their good chemical stability, simple synthesis method, and relatively narrow bandgaps. ZnIn2S4 (ZIS), as a layered structure ternary metal chalcogenide and a rising material star, has made exciting breakthroughs in the past decades. Recently, studies have shown that a rich variety of ZIS composite nanostructures are developed. This review summarizes the recent advances and development in the design and improvement of ZIS and ZIS‐based photocatalysts in full‐spectrum photocatalytic applications. Furthermore, the applications of ZIS‐based photocatalysts are discussed, such as in photocatalytic hydrogen production, CO2 reduction, degradation of pollutants, and photocatalytic selective organic transformations under ultraviolett (UV), visible (Vis), and near‐infrared (NIR) light irradiation. In the end, a brief summary and perspectives on the challenges and future directions in the area of ZIS and ZIS‐based photocatalysts are also provided.

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“…Gao et al reported the study of ternary zinc sulfide as a visible light induced photocatalyst, where the photodegradation capability is significantly enhanced with the incorporation of conducting polymer, such as PPy [ 65 ]. The limitation encountered by ternary zinc sulfide is resolved by the loading PPy to serve as an efficient electron provider, which in turn accelerates the separation process and suppresses the recombination of charge carriers.…”

Section: Polypyrrole Based Photocatalystsmentioning

confidence: 99%

Recent Developments about Conductive Polymer Based Composite Photocatalysts

2019

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Conductive polymers have been widely investigated in various applications. Several conductive polymers, such as polyaniline (PANI), polypyrrole (PPy), poly(3,4-ethylenedioxythiophene) (PEDOT)), and polythiophene (PTh) have been loaded with various semiconductor nanomaterials to prepare the composite photocatalysts. However, a critical review of conductive polymer-based composite photocatalysts has not been available yet. Therefore, in this review, we summarized the applications of conductive polymers in the preparation of composite photocatalysts for photocatalytic degradation of hazardous chemicals, antibacterial, and photocatalytic hydrogen production. Various materials were systematically surveyed to illustrate their preparation methods, morphologies, and photocatalytic performances. The synergic effect between conductive polymers and semiconductor nanomaterials were observed for a lot of composite photocatalysts. The band structures of the composite photocatalysts can be analyzed to explain the mechanism of their enhanced photocatalytic activity. The incorporation of conductive polymers can result in significantly improved visible-light driven photocatalytic activity by enhancing the separation of photoexcited charge carriers, extending the light absorption range, increasing the adsorption of reactants, inhibiting photo-corrosion, and reducing the formation of large aggregates. This review provides a systematic concept about how conductive polymers can improve the performance of composite photocatalysts.

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Polypyrrole/ZnIn2S4 composite photocatalyst for enhanced mineralization of chloramphenicol under visible light

Cited by 37 publications

References 40 publications

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

A Review and Recent Developments in Full‐Spectrum Photocatalysis using ZnIn₂S₄‐Based Photocatalysts

Recent Developments about Conductive Polymer Based Composite Photocatalysts

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Polypyrrole/ZnIn2S4 composite photocatalyst for enhanced mineralization of chloramphenicol under visible light

Cited by 37 publications

References 40 publications

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

High efficient degradation of organic dyes by polypyrrole‐multiwall carbon nanotubes nanocomposites

A Review and Recent Developments in Full‐Spectrum Photocatalysis using ZnIn2S4‐Based Photocatalysts

Recent Developments about Conductive Polymer Based Composite Photocatalysts

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A Review and Recent Developments in Full‐Spectrum Photocatalysis using ZnIn₂S₄‐Based Photocatalysts