A novel polyaniline/NiO nanocomposite as a UV and visible-light photocatalyst for complete degradation of the model dyes and the real textile wastewater

Taymaz, Bircan Haspulat; Eskizeybek, Volkan; Kamış, Handan

doi:10.1007/s11356-020-10956-0

Cited by 36 publications

(10 citation statements)

References 87 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the characteristic peaks for Ni 2p, the shift for both Ni 2+ and Ni 3+ toward lower binding energy could be ascribed to the strong interaction between DPPB and NiO x , due to the P−Ni bond. 28 With dual interface modification, interestingly, we find both the Ni 2+ and Ni 3+ peaks shift toward higher binding energy, which indicates the anchor of PA groups of Me-4PACz to NiO 27 This inverse shift of NiO x /DPPB/Me-4PACz sample compared to NiO x /DPPB sample can be attributed to the difference in the groups which are bound to Ni 2+ , resulting in different changes of the electron cloud density in Ni cation. 29 At the same time, the same trend is found for the XPS spectra of O 1s peaks.…”

Section: Resultsmentioning

confidence: 80%

“…To explore the interaction of the two passivators with NiO x , the XPS spectra of Ni and O are measured and shown in Figure a. For the characteristic peaks for Ni 2p, the shift for both Ni 2+ and Ni 3+ toward lower binding energy could be ascribed to the strong interaction between DPPB and NiO x , due to the P–Ni bond . With dual interface modification, interestingly, we find both the Ni 2+ and Ni 3+ peaks shift toward higher binding energy, which indicates the anchor of PA groups of Me-4PACz to NiO x via P–O···Ni or PO···Ni bonds .…”

Section: Resultsmentioning

confidence: 92%

See 1 more Smart Citation

Dual Buried Interface Engineering for Improving Air-Processed Inverted FAPbI₃ Perovskite Solar Cells

Cao,

Tong,

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Fabricating perovskite solar cells (PSCs) in an ambient environment provides low-cost preparation routes for solar cells that are suitable for large-scale production. Compared with methylammonium (MA)-based perovskite materials, formamidinium lead iodide (FAPbI 3 ) possesses a more favorable bandgap for light harvesting and better thermostability. However, the phase transition from the αphase to the δ-phase easily occurs, making it challenging for ambient-air processing. Herein, we develop a buried interface engineering strategy via two molecules including 1,4-bis(diphenylphosphino)butane (DPPB) as well as [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl] phosphonic acid (Me-4PACz) to optimize air-processed inverted FAPbI 3 PSCs. This strategy regulates the crystallization process of the airfabricated FAPbI 3 perovskite film, leading to a purer α-phase with significantly enhanced crystallinity and enlarged grain sizes. Apart from improving the bulk perovskite film, the defects at the NiO x /perovskite interface are passivated, and the energy levels are better matched in the modified device, which facilitates efficient carrier extraction. Resultantly, the target device processed in the open air achieves a dramatically improved power conversion efficiency from 11.37% to 18.45%, in association with an enhanced device stability.

show abstract

Section: Resultsmentioning

confidence: 80%

Section: Resultsmentioning

confidence: 92%

Dual Buried Interface Engineering for Improving Air-Processed Inverted FAPbI₃ Perovskite Solar Cells

Cao,

Tong,

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…So, the Ppy/Fe (1:1) has the higher photocatalytic activity than pure Ppy and other Ppy/Fe composites. The photocatalytic activity of the catalyst can usually be improved by doping or by creating nanocomposites [9]. The high photocatalytic activity of the polymer/metal or polymer/metal oxide nanocomposites depends on the homogeneous distribution of the dopant in the polymer.…”

Section: Photocatalytic Activities Of Ppy and Ppy/fe Nanocompositementioning

confidence: 99%

“…So, generated e-/h+ couples transferred to the semiconductor's surface and then react with the other reactants on the photocatalyst surface [8]. An ideal photocatalyst has a suitable band gap, large surface area, and low cost [9]. In recent years, conductive polymers like polypyrrole (Ppy), polyaniline, and polythiophene are getting attention due to its easy synthesis procedure, chemical stability, low cost and good conductivity photocatalysis applications.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic degradation of malachite green dye using zero valent iron doped polypyrrole

Taymaz

Kamış

Yoldaş³

2021

Environmental Engineering Research

Self Cite

View full text Add to dashboard Cite

The zero valent iron doped polypyrrole (Ppy/Fe) was synthesized via chemical oxidative polymerization method in diethylene glycol medium for the first time in this study. The characterization of synthesized Ppy and Ppy/Fe composites was realized by using fourier transform infrared spectrometer (FTIR), UV-visible diffuse reflectance spectrometer (DRS), scanning electron microscope (SEM), elemental dispersion X-ray analysis (EDX), four point probe electrical conductivity X-Ray diffraction spectroscopy (XRD) and pH at point of zero charge (pHpzc) methods. These characterizations show that there is an interaction between zero valent iron (Fe0) and Ppy polymer. The photocatalytic activity of synthesized Ppy and Ppy/Fe composite were investigated by degradation of malachite green (MG) dye under UV light irradiation. Ppy/Fe composite was achieved complete degradation within 60 min, which is 5.92 times faster than pure Ppy. The effect of irradiation time, ratio of Ppy and Fe0 in the synthesized composites, photocatalyst amount to photocatalytic efficiency of Ppy/Fe is studied. Also, the photocatalytic stability of Ppy/Fe is investigated under UV light illumination for degradation MG dye.

show abstract

“…The potential of nano/microstructure metal oxide semiconductors as a desirable photocatalyst for environmental remediation has been intensively studied. Nano/microstructured metal oxide semiconductors such as ZnO, [ 22,23 ] TiO 2 , [ 24 ] NiO, [ 25 ] CuO, [ 26 ] SnO 2 , [ 27 ] CdO, [ 28 ] CeO 2 , [ 29 ] Sm 2 O 3 , [ 30 ] and oxides of iron [ 31 ] with well‐defined bandgaps have been extensively explored as photocatalysts for the degradation of dyes, organic compounds, pesticides, insecticides, and many other contaminants. These metal oxides have also been utilized for the degradation of microplastics.…”

Section: Introductionmentioning

confidence: 99%

Metal Oxides‐Based Nano/Microstructures for Photodegradation of Microplastics

Kumar¹

2023

Advanced Sustainable Systems

View full text Add to dashboard Cite

The ubiquitous presence of microplastics in the environment has raised serious environmental and health concerns. These tiny plastic particles can enter the food chain, posing a significant threat to human health. Researchers worldwide have focused their efforts on developing strategies to mitigate microplastic pollution. This review focuses on the potential of nano/microstructured metal oxide semiconductors as effective photocatalysts for microplastic degradation. The review is divided into two sections: static metal oxides and dynamic micromachines based on metal oxides. The modifications made to nano/microstructured metal oxides such as TiO2, ZnO, bismuth oxyhalides (BiOX), NiO, Cu2O/CuO, perovskite‐like Bi2WO6, Fe3O4, etc., to enhance their degradation efficiency are thoroughly discussed and reviewed. Additionally, the photocatalytic pathways for the conversion of microplastics into C2 fuel and other value‐added products are also elaborated. The current developments in the realm of dynamic, self‐propelled, and controlled micromotors for the photodegradation of microplastics are also highlighted. The review concludes by proposing future perspectives and challenges to facilitate the remediation of microplastics in water and wastewater systems in a more effective, scalable, and environmentally friendly manner. Overall, the review emphasizes the potential of photocatalysis using nano/microstructured metal oxide semiconductors as an eco‐friendly and promising approach for microplastic degradation.

show abstract

A novel polyaniline/NiO nanocomposite as a UV and visible-light photocatalyst for complete degradation of the model dyes and the real textile wastewater

Cited by 36 publications

References 87 publications

Dual Buried Interface Engineering for Improving Air-Processed Inverted FAPbI₃ Perovskite Solar Cells

Dual Buried Interface Engineering for Improving Air-Processed Inverted FAPbI₃ Perovskite Solar Cells

Photocatalytic degradation of malachite green dye using zero valent iron doped polypyrrole

Metal Oxides‐Based Nano/Microstructures for Photodegradation of Microplastics

Contact Info

Product

Resources

About

A novel polyaniline/NiO nanocomposite as a UV and visible-light photocatalyst for complete degradation of the model dyes and the real textile wastewater

Cited by 36 publications

References 87 publications

Dual Buried Interface Engineering for Improving Air-Processed Inverted FAPbI3 Perovskite Solar Cells

Dual Buried Interface Engineering for Improving Air-Processed Inverted FAPbI3 Perovskite Solar Cells

Photocatalytic degradation of malachite green dye using zero valent iron doped polypyrrole

Metal Oxides‐Based Nano/Microstructures for Photodegradation of Microplastics

Contact Info

Product

Resources

About

Dual Buried Interface Engineering for Improving Air-Processed Inverted FAPbI₃ Perovskite Solar Cells

Dual Buried Interface Engineering for Improving Air-Processed Inverted FAPbI₃ Perovskite Solar Cells