Synthesis and photocatalytic application of visible-light active β-Fe2O3/g-C3N4 hybrid nanocomposites
By K. Christoforidis, T. Montini, E. Bontempi, S. Zafeiratos, J. J. D. Jaén, P. Fornasiero. 2016
211 citations recorded by the source corpus.
Abstract Hybrid organic/inorganic nanocomposites comprised of nanocrystalline iron oxide at the metastable β-phase and graphitic carbon nitride (g-C 3 N 4 ) were prepared via a facile in-situ growth strategy embedded in a solid state process. The hybridized β-Fe 2 O 3 /g-C 3 N 4 nanomaterials were thoroughly characterized by a variety of techniques, including UV–vis absorption, nitrogen physisorption, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and transmission electron microscopy (TEM). Their photocatalytic activity was evaluated under both simulated solar light and pure visible light irradiation against the photodegradation of methyl orange (MO), rhodamine B (RhB) and phenol. The prepared β-Fe 2 O 3 /g-C 3 N 4 nanocomposites were proven durable and significantly more efficient than the single components. The β-Fe 2 O 3 content in the final material was tuned to optimize the photocatalytic performance, with particular attention to the activity under visible light. The enhanced photoactivity was attributed to a) the improved optical properties of the prepared nanocomposites, presenting narrower band-gap energies and increased visible light absorption efficiency, and b) to the efficient separation of the photoinduced charge carriers driven by the matched band edges in the heterostructure. The predominant active species responsible for the photodegradation activity were determined and a possible mechanism is proposed.
Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/b29347cc36e90e2ef01c4419ce9a0fd8f7265369
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In Renewable Energy, Sustainability and the Environment
Citations in the corpus
- Mechanism insight into rapid photocatalytic disinfection of Salmonella based on vanadate QDs-interspersed g-C3N4 heterostructures (2018, background): “Thereupon, a great deal of effort has been devoted to endow g-C3N4, such as forming heterostructures [27,28], doping with metals [29–31], and synthesizing hollow nanospheres [32], etc.”
- Magnetically separable nanocomposites based on ZnO and their applications in photocatalytic processes: A review (2018, unknown): “A similar mechanism was proposed by Abazari, Mahjoub, and Sanati (2016).”