Constructing a novel carbon nitride/polyaniline/ZnO ternary heterostructure with enhanced photocatalytic performance using exfoliated carbon nitride nanosheets as supports

Pandiselvi, Kannusamy; Fang, Huaifang; Huang, Xiubo; Wang, Jingyu; Xu, Xiaochan; Li, Tao

doi:10.1016/j.jhazmat.2016.04.035

Cited by 125 publications

(40 citation statements)

References 68 publications

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“…The adsorption bands at 807 and 880 cm −1 are the characteristic peaks for tri-s-triazine units 36 . The peaks at 1220–1450 cm −1 are originated due to C-N stretching of aromatic rings and the peak at 1633 cm −1 is attributed to the stretching vibrations of C=N 37 , 38 . After chemical etching, the peaks become more intense and sharp in Ox-g-C 3 N 4 , possibly due to the better-ordered packing of H-bond cohered long stand of polymeric melon units that left after chemical treatment 21 .…”

Section: Resultsmentioning

confidence: 99%

Oxidized g-C3N4/polyaniline nanofiber composite for the selective removal of hexavalent chromium

Kumar

Barakat

Alseroury

2017

Sci Rep

101

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Nanomaterials with selective adsorption properties are in demand for environmental applications. Herein, acid etching and oxidative decomposition of melon units of graphitic carbon nitride (g-C3N4) was performed to obtain the oxidized graphitic carbon nitride (Ox-g-C3N4) nanosheets. Ox- g-C3N4 nanosheets were further decorated on the polyaniline nanofiber (Ox-g-C3N4/Pani-NF). Ox-g-C3N4/Pani-NF was well characterized and further applied for a selective removal of hexavalent chromium (Cr(VI)) form aqueous solution. The zeta potential analysis indicate that the surface of Ox-g-C3N4/Pani-NF was positively charged which could be beneficial to bind anionic Cr(VI) ions electrostatically. In addition, nitrogen and oxygen containing functional groups exist on the Ox-g-C3N4/Pani-NF were mainly responsible for adsorption of Cr(VI) ions from aqueous solution. Moreover, the adsorption of Cr(VI) ions was also dependent on solution pH, reaction temperature and initial concentration of Cr(VI) ions. The maximum monolayer adsorption capacity of Ox-g-C3N4/Pani-NF for Cr(VI), calculated from Langmuir isotherm was 178.57 mg/g at pH = 2 and 30 °C. The activation energy (Ea = −20.66 kJ/mol) and the enthalpy change (ΔH° = −22.055 kJ/mol) validate the role of physical forces in adsorption of Cr(VI). These results demonstrate that Ox-g-C3N4/Pani-NF can be used as a potential adsorbent for environmental remediation applications.

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Section: Resultsmentioning

confidence: 99%

Oxidized g-C3N4/polyaniline nanofiber composite for the selective removal of hexavalent chromium

Kumar

Barakat

Alseroury

2017

Sci Rep

101

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“…g-C 3 N 4 /polymer hybrid materials show improved performance towards water contaminant degradation too. 99 For example, organic dyes like Methyl red, Congo red or methylene blue (MB) 100 are responsible for wastewater contamination, as they have been 96 Copyright 2011 Royal Society of Chemistry). (b) The mechanism to understand the role of the dispersed poly(pyrrole) (PPy) nanoparticles in enhancing the photocatalytic activity of PPy-g-C 3 N 4 for H 2 evolution (Reprinted with permission.…”

Section: Blendingmentioning

confidence: 99%

Graphitic carbon nitride and polymers: a mutual combination for advanced properties

et al. 2020

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“…[179,180] At an optimal loading content, the photocatalytic performance was 18.7 and 3.5 times better than that of pure TiO 2 and g-C 3 N 4 , respectively. [181,182] The loading of GO increased the absorption intensity in visible region and charge separation efficiency was greatly improved to enhance photocatalytic activity for two times. [180] In addition, ternary nanohybrids were further produced in recent years.…”

Section: Hybridization With Nanostructuresmentioning

confidence: 99%

“…[180] In addition, ternary nanohybrids were further produced in recent years. [182] Recently, well-aligned ZnO nanorods were synthesized on g-C 3 N 4 nanosheets via a microwave-assisted hydrothermal treatment due to strong Zn-N interaction, and then deposited with Pt nanoparticles to produce g-C 3 N 4 /ZnO/Pt composites with excellent sensitivity/selectivity and rapid response/recovery rate for detection of ethanol and NO 2 . [181,182] The loading of GO increased the absorption intensity in visible region and charge separation efficiency was greatly improved to enhance photocatalytic activity for two times.…”

Section: Hybridization With Nanostructuresmentioning

confidence: 99%

Functionalized Hybridization of 2D Nanomaterials

Guan

Han

2019

Advanced Science

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The discovery of graphene and subsequent verification of its unique properties have aroused great research interest to exploit diversified graphene‐analogous 2D nanomaterials with fascinating physicochemical properties. Through either physical or chemical doping, linkage, adsorption, and hybridization with other functional species into or onto them, more novel/improved properties are readily created to extend/expand their functionalities and further achieve great performance. Here, various functionalized hybridizations by using different types of 2D nanomaterials are overviewed systematically with emphasis on their interaction formats (e.g., in‐plane or inter plane), synergistic properties, and enhanced applications. As the most intensely investigated 2D materials in the post‐graphene era, transition metal dichalcogenide nanosheets are comprehensively investigated through their element doping, physical/chemical functionalization, and nanohybridization. Meanwhile, representative hybrids with more types of nanosheets are also presented to understand their unique surface structures and address the special requirements for better applications. More excitingly, the van der Waals heterostructures of diverse 2D materials are specifically summarized to add more functionality or flexibility into 2D material systems. Finally, the current research status and faced challenges are discussed properly and several perspectives are elaborately given to accelerate the rational fabrication of varied and talented 2D hybrids.

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Constructing a novel carbon nitride/polyaniline/ZnO ternary heterostructure with enhanced photocatalytic performance using exfoliated carbon nitride nanosheets as supports

Cited by 125 publications

References 68 publications

Oxidized g-C3N4/polyaniline nanofiber composite for the selective removal of hexavalent chromium

Oxidized g-C3N4/polyaniline nanofiber composite for the selective removal of hexavalent chromium

Graphitic carbon nitride and polymers: a mutual combination for advanced properties

Functionalized Hybridization of 2D Nanomaterials

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