Designing of highly active g-C3N4/Co@ZnO ternary nanocomposites for the disinfection of pathogens and degradation of the organic pollutants from wastewater under visible light

Qamar, Muhammad Azam; Javed, Mohsin; Shahid, Samia; Iqbal, Shahid; Abubshait, Samar A.; Abubshait, Haya A.; Ramay, Shahid M.; Mahmood, Asif; Ghaithan, Hamid M.

doi:10.1016/j.jece.2021.105534

Cited by 66 publications

(25 citation statements)

References 77 publications

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“…The photoluminescence (PL) capabilities of g-C 3 N 4 enable it to be applied as turn-on biochemical and biosensor for detecting Cu 2+ , Ag + , Fe 3+ , Hg 2+ , and Cr 2+ ions. g-C 3 N 4 has also been used effectively in biological studies because of its biocompatibility [ 17 , 18 ]. Yang's group, for example, found that a g-C 3 N 4 /up-conversion nanoparticle composite effectively prevents tumor growth by creating reactive oxygen species in response to NIR laser excitation [ 19 – 22 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and applications of graphitic carbon nitride (g-C3N4) based membranes for wastewater treatment: A critical review

Qamar

Javed

Shahid

et al. 2023

Heliyon

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Section: Introductionmentioning

confidence: 99%

Synthesis and applications of graphitic carbon nitride (g-C3N4) based membranes for wastewater treatment: A critical review

Qamar

Javed

Shahid

et al. 2023

Heliyon

Self Cite

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“…PDs are the center of attraction to scientists because these are related to green energy harvesting with a flexible architecture. Conventionally, inorganic materials such as GaN, GaAlN, ZnO, and SiC are used in PDs according to their band gap for the detection of selective or broad-band spectrum. − Materials with a tunable band gap are generally found in group II–IV of the periodic table. Semiconductors such as metal sulfides such as ZnS, CdS, PbS, TMDCs, and so forth are the most studied materials due to their excellent electro-optic properties for optoelectronic applications. − …”

Section: Introductionmentioning

confidence: 99%

ZnS Nanosheets in a Polyaniline Matrix as Metallopolymer Nanohybrids for Flexible and Biofriendly Photodetectors

Verma

Singh

Tripathi³

et al. 2022

ACS Appl. Nano Mater.

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The current research work reports on the functionalization of a poly-toluenesulfonic acid (p-TSA)-doped polyaniline matrix by ZnS nanosheets. Structural analysis has been performed by X-ray diffraction and X-ray photoelectron spectroscopy. The Rietveld refinement confirms the cubic phase of ZnS as well as the XPS reveals the binding energies of Zn 2p1/2 and Zn 2p3/2 at 1045.85 and 1022.83 eV, respectively, establishing the Zn2+ state. Scanning electron microscopy of ZnS–polyaniline exhibits a different-sized mist-like morphology on both paper and cotton substrates. The tunneling electron microscopy images reveal the ZnS nanosheet with an interplanar spacing of 0.31 nm incorporated in the polyaniline matrix. Further, analysis was carried out through UV–visible spectroscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, and dynamic light scattering. The metal–metallopolymer nanohybrid-metal device of this metal–polymer framework was fabricated on flexible and eco-friendly cellulose paper and cotton substrates. The density functional theory approach was adopted for better insight understanding about the synthesized material in terms of band gap, electron affinity, and electronegativity. Ohmic as well as the space charge-limited behavior of current is found responsible for the current–voltage characteristics. This flexible device exhibited an ultrahigh photoresponsivity of 396.479 A W–1 and a giant external quantum efficiency of 1.344 × 105%. Paper and cotton substrate-based devices show significant responsivities of 3.671 and 1.740 mA/W with detectivities of 3.092 × 1010 and 3.470 × 1010 Jones even at 0 V, respectively.

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“…A peak at 805 cm −1 indicated the triazine unit. The FTIR spectrum of the composite contained the peaks corresponding to both Mn-ZnFe 2 O 4 and S-gC 3 N 4, signifying that the Mn-ZnFe 2 O 4 /S-g-C 3 N 4 composite was formed successfully ( Figure 2 d) [ 33 , 34 , 35 , 36 ].…”

Section: Resultsmentioning

confidence: 99%

Integration of Mn-ZnFe2O4 with S-g-C3N4 for Boosting Spatial Charge Generation and Separation as an Efficient Photocatalyst

et al. 2022

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The disposal of dyes and organic matter into water bodies has become a significant source of pollution, posing health risks to humans worldwide. With rising water demands and dwindling supplies, these harmful compounds must be isolated from wastewater and kept out of the aquatic environment. In the research presented here, hydrothermal synthesis of manganese-doped zinc ferrites’ (Mn-ZnFe2O4) nanoparticles (NPs) and their nanocomposites (NCs) with sulfur-doped graphitic carbon nitride (Mn-ZnFe2O4/S-g-C3N4) are described. The samples’ morphological, structural, and bonding features were investigated using SEM, XRD, and FTIR techniques. A two-phase photocatalytic degradation study of (0.5, 1, 3, 5, 7, 9, and 11 wt.%) Mn-doped ZnFe2O4 NPs and Mn-ZnFe2O4/(10, 30, 50, 60, and 70 wt.%) S-g-C3N4 NCs against MB was carried out to find the photocatalyst with maximum efficiency. The 9% Mn-ZnFe2O4 NPs and Mn-ZnFe2O4/50% S-g-C3N4 NCs exhibited the best photocatalyst efficiency in phase one and phased two, respectively. The enhanced photocatalytic activity of the Mn-ZnFe2O4/50% S-g-C3N4 NCs could be attributed to synergistic interactions at the Mn-ZnFe2O4/50% S-g-C3N4 NCs interface that resulted in a more effective transfer and separation of photo-induced charges. Therefore, it is efficient, affordable, and ecologically secure to modify ZnFe2O4 by doping with Mn and homogenizing with S-g-C3N4. As a result, our current research suggests that the synthetic ternary hybrid Mn-ZnFe2O4/50% S-g-C3N4 NCs may be an effective photocatalytic system for degrading organic pollutants from wastewater.

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Designing of highly active g-C3N4/Co@ZnO ternary nanocomposites for the disinfection of pathogens and degradation of the organic pollutants from wastewater under visible light

Cited by 66 publications

References 77 publications

Synthesis and applications of graphitic carbon nitride (g-C3N4) based membranes for wastewater treatment: A critical review

Synthesis and applications of graphitic carbon nitride (g-C3N4) based membranes for wastewater treatment: A critical review

ZnS Nanosheets in a Polyaniline Matrix as Metallopolymer Nanohybrids for Flexible and Biofriendly Photodetectors

Integration of Mn-ZnFe2O4 with S-g-C3N4 for Boosting Spatial Charge Generation and Separation as an Efficient Photocatalyst

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