The synergistic effect of acid-etched g-C<sub>3</sub>N<sub>4</sub> nanosheets and polyaniline nanofibers for the adsorption and photocatalytic degradation of textile dyes: a study of charge transfer mechanism and intermediate products

Kumar, Arun; Mittal, Honey; Nagar, Rupali; Khanuja, Manika

doi:10.1039/d1ma01218e

Cited by 33 publications

(11 citation statements)

References 43 publications

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“…The list of simple polyaniline composites includes the following moieties: bismuth oxychloride [ 95 ]; cadmium sulfide [ 96 , 97 ]; carbon nitride [ 98 ]; magnetite [ 89 ]; multiwall carbon nanotubes [ 99 ]; nickel [ 100 ]; reduced graphene oxide [ 101 ]; silver molybdate [ 29 ]; silver oxide [ 102 ]; tin dioxide [ 103 ]; titanium dioxide [ 104 , 105 , 106 ]; tungsten trioxide [ 107 ]; zinc oxide [ 61 , 104 , 108 , 109 , 110 ]; zirconium dioxide [ 9 ].…”

Section: Polyaniline Photocatalystsmentioning

confidence: 99%

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

Stejskal

2022

Polymers

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Water pollution by organic dyes, and its remediation, is an important environmental issue associated with ever-increasing scientific interest. Conducting polymers have recently come to the forefront as advanced agents for removing dye. The present review reports on the progress represented by the literature published in 2020–2022 on the application of conducting polymers and their composites in the removal of dyes from aqueous media. Two composites, incorporating the most important polymers, polyaniline, and polypyrrole, have been used as efficient dye adsorbents or photocatalysts of dye decomposition. The recent application trends are outlined, and future uses also exploiting the electrical and electrochemical properties of conducting polymers are offered.

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Section: Polyaniline Photocatalystsmentioning

confidence: 99%

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

Stejskal

2022

Polymers

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“…Where V fb , e and E g are the flat band potential, charge of electron and Band gap of the material, respectively [25] . The band gap of MoSe 2 , PANI, MP11, MP12 and MP21 nanocomposite used for the calculation is 1.82, 3.46, 2.0, 3.0 and 2.15 eV, respectively [19] .…”

Section: Characterization Of Electrode Materialsmentioning

confidence: 99%

MoSe₂‐PANI Nanocomposite as Supercapacitor Electrode Material: Optimization, Mechanism and Electrochemical Performance

2022

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This publication is part of a Special Collection on ''Celebrating 100 years of JMI University'' (JMI-2022). Please follow to visit the whole collection.In this report, MoSe 2 -Polyaniline (PANI) nanocomposite with different amounts of MoSe 2 (0.05 g, 0.1 g and 0.2 g) were synthesized via in-situ oxidative polymerization method. The morphology and wt % ratio of nanocomposites was studied using Field emission scanning electron microscopy (FESEM) and Energy dispersive X-ray spectroscopy (EDX), respectively. Atomic and weight concentration of the nanocomposite was calculated using X-ray Photoelectron Spectroscopy (XPS) and the results were in agreement with EDX analysis. The optimum nanocomposite as the electrode material for supercapacitor showed the highest specific capacitance of 463 F/g at a scan rate of 5 mV/s and retains ∼ 72 % specific capacitance after 3000 charge-discharge cycles. The MoSe 2 -PANI nanocomposite attains an energy density of 19.6 Wh/kg at a power density of 12.7 W/kg. The enhancement in the electrochemical activity of the MoSe 2 -PANI electrode was achieved by using synergetic effects of electrical double-layer capacitors (MoSe 2 nanosheets) and pseudocapacitors (Polyaniline nanofiber). MoSe 2 -PANI nanocomposite showed improved electron and ion transfer mechanism and improvement in the wettability of the electrode material. The thermogravimetric analysis (TGA) confirmed that the nanocomposite has improved thermal stability with mass loss of 28 %. The Brunauer-Emmett-Teller (BET) study confirm the high surface area (61.147 m 2 g À 1 ) and pore volume (8.595 cm 3 g À 1 ) as compared to their pristine samples. The outstanding electrochemical performance has proved that MoSe 2 -PANI nanocomposite has a great potential to be an electrode material in energy storage devices.

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“…Allergic dermatitis, skin allergy, and dysfunction of the sex organs, kidney, brain, liver, and so forth are caused by toxic dye molecules. − Advanced heterogeneous photocatalysis, employing semiconductor photocatalysts is a promising technology to degrade these contaminants. Semiconductor-mediated photocatalysis is an emerging sustainable technology, utilizing the solar insolation to activate the chemical reactions occurring at the surface of semiconductor catalysts. − This technique mineralizes a broad range of organic dyes into harmless byproducts such as CO 2 , H 2 O, and inorganic ions. − …”

Section: Introductionmentioning

confidence: 99%

Enhancing Photocatalytic Efficiency of Spent Tea Leaf Powder on ZnIn₂S₄ Incorporation: Role of Surface Charge on Dye Degradation

et al. 2023

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Photocatalytic degradation of dye contaminants using nanocomposite adsorbents has emerged as a promising solution for wastewater treatment. Owing to its abundant availability, eco-friendly composition, biocompatibility, and strong adsorption activity, spent tea leaf (STL) powder has been extensively explored as a viable dye-adsorbent material. In this work, we report spectacular enhancement in the dye-degradation properties of STL powder on incorporation of ZnIn2S4 (ZIS). The STL/ZIS composite was synthesized using a novel, benign, and scalable aqueous chemical solution method. Comparative degradation and reaction kinetics studies were performed onto an anionic dye, Congo red (CR), and two cationic dyes, Methylene blue (MB) and Crystal violet (CV). The degradation efficiencies of CR, MB, and CV dyes were obtained to be 77.18, 91.29, and 85.36%, respectively, using the STL/ZIS (30%) composite sample after the 120 min experiment. The spectacular improvement in the degradation efficiency of the composite was attributed to its slower charge transfer resistance (as concluded by the EIS study) and optimized surface charge (as concluded by ζ potential study). Scavenger tests and reusability tests deciphered the active species (•O2 –) and reusability of the composite samples, respectively. To the best of our knowledge, this is the first report to demonstrate improvement in the degradation efficiency of STL powder on ZIS incorporation.

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The synergistic effect of acid-etched g-C₃N₄ nanosheets and polyaniline nanofibers for the adsorption and photocatalytic degradation of textile dyes: a study of charge transfer mechanism and intermediate products

Abstract: Acid-etched graphitic carbon nitride (TGCN) nanosheets decorated with polyaniline (PANI) nanofibers for the adsorption and photocatalytic degradation of Methyl Orange (MO) and Congo Red (CR) toxic textile dyes.

Cited by 33 publications

References 43 publications

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

MoSe₂‐PANI Nanocomposite as Supercapacitor Electrode Material: Optimization, Mechanism and Electrochemical Performance

Enhancing Photocatalytic Efficiency of Spent Tea Leaf Powder on ZnIn₂S₄ Incorporation: Role of Surface Charge on Dye Degradation

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The synergistic effect of acid-etched g-C3N4 nanosheets and polyaniline nanofibers for the adsorption and photocatalytic degradation of textile dyes: a study of charge transfer mechanism and intermediate products

Abstract: Acid-etched graphitic carbon nitride (TGCN) nanosheets decorated with polyaniline (PANI) nanofibers for the adsorption and photocatalytic degradation of Methyl Orange (MO) and Congo Red (CR) toxic textile dyes.

Cited by 33 publications

References 43 publications

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

Recent Advances in the Removal of Organic Dyes from Aqueous Media with Conducting Polymers, Polyaniline and Polypyrrole, and Their Composites

MoSe2‐PANI Nanocomposite as Supercapacitor Electrode Material: Optimization, Mechanism and Electrochemical Performance

Enhancing Photocatalytic Efficiency of Spent Tea Leaf Powder on ZnIn2S4 Incorporation: Role of Surface Charge on Dye Degradation

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The synergistic effect of acid-etched g-C₃N₄ nanosheets and polyaniline nanofibers for the adsorption and photocatalytic degradation of textile dyes: a study of charge transfer mechanism and intermediate products

MoSe₂‐PANI Nanocomposite as Supercapacitor Electrode Material: Optimization, Mechanism and Electrochemical Performance

Enhancing Photocatalytic Efficiency of Spent Tea Leaf Powder on ZnIn₂S₄ Incorporation: Role of Surface Charge on Dye Degradation